Internorm, Solarlux, Ireland

Customer Reviews

We asked our customers to write down their experience of dealing with EWC. We’ve been a bit overwhelmed
with the positive feedback they gave us.


“We installed Internorm windows a few months ago. We found them a great company to deal with from visiting the showroom and meeting Michael Derek and Clive. 
Internorm are expensive but the quality of the windows are excellent. The fitting of the windows were done by a great team of lads and their attention to detail was superb. 
Our experience with EWC was very good and would definitely recommend Internorm windows by EWC.”
Paddy and Mary O’Neill 
Refurb 2023

“We went to the showroom in Carlow and met Derek he was amazing to deal with and very knowledgeable about all the products. Lots of advise on what type of window would be most practical and aesthetically pleasing. The quality of the internorm windows are second to none. It was one the biggest investments we made in the house but it was so worth it. Windows were early on delivery which is nearly not heard of on a new build. The pride that was taken in installing the windows was amazing, there was no rushing and everything was installed correctly. The soft close was not working on one of our sliders and internorm came to fix it straight away no issues at all. Basically Internorm are expensive but the product speaks for itself. I would highly recommend EWC”.
Thomas & Patricia Kelly
New Build 2023

“We got Internorm windows and doors installed with EWC a few months ago. We found the showroom and sales team very professional and informative. Michael, Clive and Derek went to great lengths going over our options giving in depth information and invaluable advice. 
The installation was the most impressive part. The time taken and attention to detail was second to none. 
It is an expensive product but after going through the entire process we are delighted with our new windows and doors. Thank you to the entire team at Eco Windows Concepts”.

John and Mary Aherne
Refurb 2023

“We were building a passive house and we had decided that we wanted to investigate Internorm windows. They are a bit higher priced than many other brands, but windows and doors form a critical part of the building envelope and we needed to make sure this fundamental element of the build was excellent quality that would stand the test of time. ECO Windows Concept (EWC) was very welcoming from initial contact. They opened the Carlow showroom for us on a Saturday morning. Both Derek and Clive took all the time necessary over the course of many calls and 2 showroom visits to discuss the technical aspects of the Internorm windows, outlining the pros and cons of the various design options, materials, finishes, hardware etc. Clive also sat down with our builder, and together all 3 of us aligned on the exact details of each window and door. Clive paid great attention to documenting everything exactly so there would be no issues when the product arrived 4 months later.

Clive let us know well in advance that the lead time could be long so we were able to place our order at the correct time so that the windows would be ready at the right phase of the construction. The windows arrived right on schedule.

The windows and doors were installed over 3-4 days. Every window and door fit exactly! The quality of the installation job was excellent. Our builder (who is a certified window installer himself (for a competing brand)) was very impressed with the attention to detail paid by EWC to the installation process. The house passed the air tightness test for passive house with flying colours affirming that all the windows and doors were installed and sealed perfectly. The BER rating of the house is expected to be better than A.

We did have a few minor issues after the install which we reported to EWC. (The main entrance door latch was a bit stiff and the patio door slow close was intermittent). Clive came to the site and personally resolved both issues. We have had no issues with the Internorm doors or windows since then. To date we are very pleased with the product. We would also highly recommend EWC in terms of expert advice, listening to the customer, attention to detail, excellence of installation, and excellent follow-up. In the end, our Internorm product ended up only about 10% more expensive than the other more commonly known competing window products in Ireland. Given the internationally recognised Internorm high quality product and the flawless installation by EWC, for us, the reasonable extra cost was worth every penny. We have peace of mind knowing that the product could not be better, and the job could not have been done better. We have no hesitation in recommending working with EWC for your door and window solutions”.

The Dinneen Family, Limerick
Passive House New Build 2023

*Current lead time is 12 weeks

“From start to finish the level of help and service has been second to none. We started our new build during COVID and even within this difficult time Michael, Clive and the team did all they could to ensure we got the best window options for us. We had facetime calls initially, where Clive walked us around their showroom in carlow and discussed all the options with us, then when we could physically get down to see the products, Michael and Clive helped us with making the right choices for our home. We had a few different requests like wanting Roller shutters on our bedroom windows and Clive helped with discussing the options and ensuring the correct specification was in place for our windows. We ended up buying both Internorm windows and doors along with Solarlux sliding doors. The ease of ordering and ensuring that all the dimensions etc were correct was unparalleled with any other product provider we’ve had on our build. The delivery, even though a difficult one due to location, went smoothly and Clive was onsite to inspect the windows/doors as they came off the lorry. The installers that came to site were very professional and worked very well with our own builders to ensure the windows / doors were installed successfully. Peter and the installation crew made the install look easy. Communication was brilliant and we had no issues with anything. 
Post install there was an incident where the softlock on the sliding doors was damaged, Peter was down within a few days and the issues resolved within the day he was onsite. 
Additional to the windows and doors we got aluminium window sills supplied by EWC, these were a fantastic addition to our windows and really finished off the product.
We will continue to recommend EWC to any new builds and have even had people come and take a look at the windows and doors for themselves. While there are numerous brands out there to choose from, selecting the products provided by EWC was an easy choice. We had travelled around a lot of Ireland to find a decent product and we were delighted when we found EWC. The level of Customer Care is remarkable and also the great after care even when product was delivered and installed.”
Niamh Murry
New Build 2022

“Our engagement with EWC was initiated through a recommendation from family members, who spoke highly of your products and customer service. Given our specific needs, particularly the substantial amount of glass used in our project, high-spec windows were imperative. We chose the Internorm product line for the majority of our project and Solarlux for the bifold doors, both of which have impressed us with their quality and performance, meeting and exceeding our requirements and expectations.
The staff at EWC were instrumental in ensuring our project was a success. Their engineering mindset, practical and innovative solutions, and insightful advice provided us with confidence throughout the project. Every interaction was characterized by expertise and a genuine interest in ensuring the best outcomes for our project. The EWC team was a very safe pair of hands, ensuring every aspect was handled with utmost professionalism and care.
A special mention must be made to Clive Hannan, who was a fantastic point of contact throughout our journey with EWC. His consistent communication, reliability, and expertise made our experience smooth and reassuring.
The delivery was timely and in alignment with our project schedule, which was crucial for the seamless progression of our work. The installation team, with their professionalism, attention to detail, and tidiness, ensured an exemplary installation. Their work ethic and dedication to ensuring a clean and precise installation did not go unnoticed and were greatly appreciated by us.
In relation to BER requirements, the solutions and advice provided by EWC were invaluable, ensuring our project not only adhered to but surpassed the necessary standards.
In summary, our experience with EWC was overwhelmingly positive. The team was easy to deal with, and while the product is a premium investment, we firmly believe that the quality, longevity, and customer service provided justify the expense. We would not hesitate to recommend EWC to others considering high-quality window solutions for their projects”.

David & Denise Frisby
New Build 2022

“I purchased Internorm windows and doors from EWC in 2022. I dealt with Michael whom I found to be very professional throughout the process. The windows are very good quality, but most impressive was the attention to detail during installation on site”.

Derek Howlin
New Build 2022

“After looking at various options we purchased a Solarlux Acubis from EWCL last year mainly because we wanted to be able to easily open and close all the sides depending on the weather and sit out in all conditions. It looks great and Clive and the crew who installed it did an excellent job, obviously very experienced. 
We are extremely happy with it, this relaxing space has transformed our house”.

John Brosnan
Solarlux Acubis 2022

“I am delighted with the bifolding doors I purchased from Eco Window Concepts. These doors have not only enhanced the visual appeal of my home but also improved its functionality. The quality of the door is outstanding.

I must also highlight the exceptional customer service I received throughout the entire process. The Eco Window Concepts team was responsive, knowledgeable, and guided me seamlessly from selection to installation. This level of service is rare and greatly appreciated. From start to finish, my experience with Eco Window Concepts has been top-notch, and I wholeheartedly recommend them to anyone in need of superior doors and outstanding service”.

John Kelleher
Solarlux Bifold 2022

“After many years of developing properties we knew that with our forever home we were not going to compromise, we wanted the fabric of the building to be the very best to stand the test of time.
After months of research we knew that the Internorm window system was beyond a doubt the most superior on the market offering the quality, security and a sleek finish.

We looked to a few agents to provide this product but Michael, Clive and the EWC team stood out over and above the rest.  A big factor in our choice was that EWC offered the entire service in-house without engaging any subcontractors to install.  From the minute we visited the Bagenalstown showroom the advice and guidance given personally by Michael gave all the assurance we needed. The meticulous attention to detail by Clive in surveying and measuring resulted in perfection.  Clive and the fitters installed the window system without an inch of error and took all the time required to ensure this. We couldn’t be happier with the end result.

It was a true pleasure to work with every member of this team who never faltered in their professionalism, giving not only a superior product, but also a superior service from start to finish.  EWC were by far the best vendor on our build project and I cannot recommend them highly enough”
Karen and Derek Sheeran, Mullingar, New Build 2019.

“We built a bungalow on the side of an exposed hill and knew we needed a strong tough window. We looked and found it hard to find a window that compared to Internorm. Yes, these windows were more expensive than other competitors and we deliberated for many nights on our decision, but from ordering from EWC ,to delivering only 6 days after agreed date, we got the feeling we were hoping for and the product that was promised.
We really were impressed, thanks Michael “
Paul and Angela 

“From the beginning of our self build journey we knew we would need the best quality windows for our new passive house. The quality of the product is by far in away superior than any other we looked at for our project. In addition to the product I found Michael and the entire team very thorough and extremely helpful. Michael understood from the get go that we were after quality, and quality is what we got. From measurement to the fitters the service ran very smoothly. The fitters deserve a special mention. It took a few days to complete the fitting, compared to a few hours with other suppliers as the job was done right! Highly recommend EWC”

Edward Weldon, Offaly
New Passive Build – 2021.


“We had a brilliant experience with ECO Window Concepts (EWC), Internorm – from our first visit to the showroom right down to the aftersales service. Michael and the team’s attention to detail and technical knowledge of the product was excellent; they were the first vendor we visited and we found it impossible to find anything else on the market that could compete in terms of quality and design. Internorm is definitely a higher end product and priced slightly higher compared to the majority of offerings on the market, but the overall design finish and quality of the product made our decision a very easy one! We’re delighted with the overall delivery and installation service. One of the door panels was the incorrect colour but this was dealt with and replaced seamlessly by EWC.

From a self-builder’s perspective, the team in Bagnelstown were more than accommodating and generous with their time and advice pre and post-sale!”

Bridget Murphy, Carlow
New build – 2021.


“As two architects, we have specified Internorm windows and doors for clients in the past but recently we choose them for our own home. We wanted high spec windows to achieve our passive standard U-Values and also achieve great airtightness. Internorm’s windows met all our required standards along with other attractive features. The EWC showroom displays the various window profiles, ironmongery and colour options which helps a lot when making decisions. Since we wanted to achieve a high quality house the technical details were extremely important to us. Both Michael and Clive were very helpful in ensuring we achieved what we wanted and had great suggestions to problems we faced. Their fitting team on site had a brilliant attitude and it reflected in their quality of work and attention to detail. Peter noticed a scratch on the sliding door and was not happy with it so assured us that it would be replaced. Since installation I have had a number of queries about the tightening of handles and window seals and both Michael and Clive have quickly responded to my questions and have had the fitting team back out to ensure the windows are opening and closing properly. We are delighted with our new windows and the service provided by EWC. If you are looking for high quality windows and service I would highly recommend them, they are slightly more expensive but they are worth it and the follow up service is second to none”.

Nicole Carr, Wexford
New Build 2021


“We are absolutely delighted with our Internorm windows. The natural timber internal finish is something we could not find from any other aluclad suppliers. The quality of both the windows and doors and guarantee on the product finalised our decision to go with them. The team spent a lot of time back and forth finalising our design to make sure it was exactly what we were looking for and even helped us develop our cill details etc to work with the window. The fitting team spent a great deal of time on each window ensuring exact positioning etc of each element. We did have one cracked glass pane which was replaced quickly and the team have also since returned to site to adjust one of our doors.
Overall we are delighted with the product and service and would definitely recommend”
Alice and Kevin
Self build- Laois – 2021.


“We saw Internorm windows and doors in a neighbour’s house and were very impressed by their style and quality. Our neighbours also spoke of the professionalism and attention to detail of Eco Window Concepts (EWC) who installed the windows. We contacted Michael Meany who organised a viewing at their showrooms – he reminded us several times that Internorm is a high end product and more expensive than other options. We found EWC to be very knowledgeable about their products not at all pushy, in fact they encouraged caution before making a final decision. Our existing windows were more than 20 years old, were draughty and let in a lot of traffic noise. We live near a busy motorway. EWC made sure we were happy with our decision to replace all windows and doors and then measured up. During the installation EWC, led by Peter, were meticulous in their work, very clean and tidy. The difference after installation was amazing. All traffic noise had disappeared. The house was so warm that the heating system had to be turned down. The overall appearance of the house has been transformed and it stands out from the others – there is no doubt that the value has been increased by the good looking and high spec windows and doors. There was a small issue which required EWC to return afterwards – their representative Clive was top class in his approach and resolved the matter fully. We are delighted with Internorm and the service of EWC. It was a big decision and there were cheaper options available but it was absolutely worth the extra that we paid. We have a house that is warmer and quieter but it looks amazing and is full of natural light. It is like living in a new house. One of the best decisions that we have ever made. We would recommend Internorm and EWC without any hesitation”

Ray and Clare Comerford,
Wicklow – Replacement – 2021.


“We live in a 10 year old house which had very basic triple glazed windows installed in 2009. We finally decided it was time to upgrade our windows and doors in 2021. Internal condensation on the glass and frames was the biggest problem we had, not to mention drafts at the window corners.
Having completed research into window quality, aesthetics and efficiency rating and to ensure we didn’t get it wrong the second time we agreed Internorm was the company we wanted to deal with so we contacted Michael at EWC. He provided so much information about the product and advised the best range to suit our house.
The new windows arrived on time and were scheduled for fitting without delay.
Every window and door installed improved our view and natural light throughout the house. We have some complex windows in terms of size and shape and there were absolutely no problems at installation time.

As we have stone on our house, Clive and Michael advised the most suitable fitting detail and membrane to surround the window frame. They advised how best to eliminate an existing cold bridge which could be argued is outside the scope of replacing existing windows.

The difference the new windows and doors have made to the house have been well worth the investment. The way the rooms hold the heat compared with when the old windows were in place makes a major difference with no changes to existing insulation. The quality of the product is second to none.

Peter and the installation team were extremely tidy during the installation keeping the inside of our house as clean as possible. When installing one window Peter highlighted a minor mark on the outer frame which we would have never noticed but his honesty was so impressive and it was repaired as soon as the new part arrived in stock. Aesthetically the windows give the house the look it deserves.
Internorm greatly improved the security of our house and I realised this watching the EWC team removing the old windows. Within seconds the glass could be removed from the frames from the outside of the house!

I would highly recommend Internorm windows and doors by EWC. The showroom is well worth a visit where you will see the difference in quality from almost any window or door you will be familiar with”.

Warren in Kildare
(Replacement 2021)


“We have been specifying Internorm products for many years and find the product to be of exceptional quality and performance, aesthetically very attractive and overall great value for money compared to other similar high-end window options. What sets Internorm apart from others are the details that we otherwise often have to compromise on due to manufacturer limitations – large expanses of glass with no breaks, large opening sections, wide openings, extra high window heads, etc. The large two pane sliding doors in particular are a huge hit with clients and can be opened and closed effortlessly. The sliding windows, glass to glass corner details, full height opening windows and so on all make for beautiful added design features. The front door designs are also unrivalled. When budget will stretch to Internorm, we find the end result more than makes up for the higher cost and longer lead-in times for our clients. We have been using EWC exclusively as our Internorm supplier for several years now, we find Michael and his team easy to collaborate with, always quick and helpful with responses to queries. A special mention also for Michael’s exceptional installation team. We have used the product in both new builds and refurbishments in Limerick and Kerry and would gladly recommend both the product and EWC to clients and colleagues”.

Barbara Carey, Carey Architects, Kerry.


Hi Michael,

I have been away since the guys finished up the job, so just dropping you a note now to say thank you. Only now, I have had a chance to stand back and appreciate the new look of the house. It has given it a very modern look. The windows have a very superior feel and I much say a special thank you to Peter and the lads. There was an exceptional attention to detail in the installation that we really appreciated. Thanks also to Clive for answering all the technical questions and being so helpful with his advice and knowledge. The door works a treat.
I have a number of neighbours and friends that have booked themselves in for a look over the next week or two. Hopefully some will advance to orders for you. If you want to send others in the future to view the windows and doors, that is no problem. My commission rates are very reasonable 😉.

Michael, many thanks for all your assistance (and patience) throughout the process.

Donnelly – Cork.
(Door & Window Replacement)
August 2021


“Having seen photographs in the papers the concept of a garden room adjoined to our house look ideal to us. Having investigated further we were put in touch with EWC (eco windows concepts) in Carlow. Upon getting an idea of what we had in mind and the layout of our house Michael Meaney of EWC pointed us in the direction of SDL ACUBIS model from the brochure. Having given Michael measurements etc we got the cost of the project which was more than we were planning to spend. After a second look at the SDL ACUBIS which is made by Solarlux, a German Company we went ahead. The building works went ahead as scheduled taking four days. We were happy with the engineers on site. They dealt with our queries and Michael and Clive were always contactable. We had some teething issues and their engineer efficiently solved the issues. There is only one aspect that would have improved our experience. If EWC also installed the floor which for us involved employing a third party in the process. Perhaps a suggestion for the future to make the process streamlined for the customer”

Paul White
(Solarlux ACUBIS – April 2021)


“We first heard about Internorm through our architect in 2018 who advised that they were one of the best window/door brands in the European market. Following this recommendation we met Michael in 2019 at the EWC showroom in Carlow in which he couldn’t have been any more patient with us and our many questions. In 2020 after comparing the quality, performance and cost of the Internorm windows to numerous other premium suppliers, we arranged to meet Michael again in 2020 at the EWC showroom in Dun Laoghaire at which we decided to go with EWC. The windows and doors were installed in early 2021 by the EWC team whom we found to be very professional. All the minor post installation issues that arose were quickly resolved by Clive and his team. We moved into the house in December 2021 and the Internorm windows and doors are one of the parts the house build that we are happiest with. We would highly recommend using Michael, Clive and the team at EWC”

Kieran & Roisin Sweetman.
(New Build – 2021)


“We looked at a number of window suppliers and my only regret was not contacting Michael and the team at EWCL sooner. While they’re not the cheapest windows on the market, you’ll struggle to find better overall value. Our experience from beginning to end was seamless and the comment from our builder was that he had never seen a smoother & more professional installation. Quality and Integrity would be the two words I would use to describe both EWCL and Internorm windows and I couldn’t recommend them more”
Shane Power, Kilkenny 2021.


“In late May of this year Eco Window Concepts fitted our new Internorm windows and doors. We chose their Internorm windows after a lot of research and a visit to their showroom where we met with Michael. Our build was a complete room of glass windows and doors, floor to ceiling and open to our kitchen so we were not only concerned with aesthetics but also insulation value, the new doors delivered on both. During the build we were in contact with Clive who was more than helpful on the technical side of things and prior to fitting Clive visited the site to ensure all was in order.

We were given an installation date in May and the doors were delivered exactly as planned. The men that came to install the windows were so professional, watching such big panes of glass being lifted in with a crane and fitted was an added bonus! We have had no reason to contact Eco Windows since the room was constructed, everything they delivered and fitted so far is perfect. It was a big decision to go ahead with this build as we were aware it would be expensive, our house has an A3 Ber Rating and we needed ensure we kept that rating with the new room extension, these windows allowed us to do that.

We have absolutely no hesitation in recommending Eco Window Concepts, from beginning to end they have been a pleasure to deal with, wish every company was as efficient.

Tip: the Oak finish on the inside is even more beautiful in real life than in the showroom”

Lawler – Athy, Co Kildare.
May 2021.


Michael/ Clive ,

We are back in the kitchen and are just delighted with the windows.

As you said Michael the Solarlux Ceros slide effortlessly which is both the quality of the product and the great care in which they were installed. We could not be happier.

The attention to detail both with SBLM Architects design and the specification efforts with EWC has really paid off.

Thanks again.

John & Sadhbh
(Solarlux – extension – Greystones) June 2021


We recently refurbished our home, which included the installation of new windows and doors.  We chose Internorm because we liked how solid they feel and we were impressed with the quality and look. We are delighted with the result – the house feels so cosy and secure and of course, they look great!
Thanks to Michael and his team at Eco Window Concepts for helping navigate our way through this part of the project and for your friendly attention and service.  We would highly recommend EWC and Internorm.
S. Healy, Kildare.
Refurb 2020.


“We first came across the Internorm product at the Self Build show in Dublin in 2019. We were just starting to build our new house at the time. The quality was the first thing that was apparent to us when we saw the product. We were in the middle of pricing windows from 3 other suppliers and we said we would get in touch with Michael at EWC to give him a shot at pricing it. We visited EWCs showroom and were very impressed with what we saw. one concern we had on our house was that our kitchen, dining, living area was facing south west and we had 7 metres of glass on a 12 metre long wall. We had been warned the living area could be a sauna if we didn’t take some precautions for solar gain. After a chat with Michael about this he came up with a solution of using a solar control glass (SKN). Of all the suppliers we spoke to no one else advised or offered us this. That typifies our experience with EWC ! They just go that extra mile, listened to what we had to say and came up with a solution no one else did. 

Our experience from dealing, ordering, delivery, installation was second to none with EWC and we had no issues what so ever which with a product as complex and important as the windows of a modern house is testament to the whole team at EWC and the quality of the Internorm product. 
We’re living in the house now nearly a year and have been through all sorts of weather without issues and on long hot days of the summer our SKN glass is definitely doing a great job of keeping the temperature down in our living area which we are delighted with. 
Big thanks to Michael and the Team at EWC we couldn’t recommend them enough”
Andy & Gill Gaule 
(New build – 2020)


“The customer service provided by the EWC team exceeded our expectations. From initial design to fit out the team were always available to address our queries and delivered our product on schedule. The after sales service mirrored that of presale. The staff are proficient & always accessible.

We are delighted with the final product & the team delivered on the brief – a high quality product , installed on time to a high standard. I would happily engage with Internorm and EWC on future projects”.

Kelleher – Cork
New Build 2020.


“We purchased the internorm and integrated blinds from Eco Window Concepts for our new build in 2020. Michael and his team were outstanding in showing us all the features of the Internorm windows and integrated smart blinds. They were very helpful and answered all our questions. There is a wide variety of options available and we were very impressed with the insulation and build quality of the Internorm windows and doors. The integrated smart blinds are a fantastic option and we are so happy that we decided to include these in our windows. We went ahead with the order and were very confident in what we had decided on. Delivery and installation went very smoothly, the team were exceptional and professional, tiding up their work site once the job was completed and were very diligent in ensuring all windows and doors were installed with strict air tightness and insulation standards. Once the house build was completed they came back again to inspect all the windows and to finish setting up the smart blinds system and again were very helpful in getting us acquainted with the new system.

We couldn’t be happier with our Internorm windows, they are an integral part of our house and feel the look, quality and features are worth every penny. The integrated smart blinds are a particular hit and we could never imagine life without them. Over the past few years we have called on Michael on the team for a few odd questions and they are always so helpful and available.

We would highly recommend EWC to anyone looking for new windows and doors, the team are world class, professional and friendly. You are in good hands with Michael and the team”

Elizabeth Nash
Limerick – 2020 – New Build.


“Delighted with our Internorm windows.

A great product which was pivotal in us reaching our air-tightness goal as well as good looking. As you would expect, pre sales was highly knowledgeable and installation was to a high standard”

McNally – Dublin.
Refurb and extension – 2020.


“When it came to looking at windows for our new house I contacted EWC as I had seen some of their products at a Self build show. Michael got in touch with me and we arranged to meet at one of EWC,s showrooms. Michael showed us their products and sat down with us to explain the make up of the windows and the added benefits . We decided to go with Internorm windows and doors throughout the house.  Michael was always on the end of the phone to deal with any questions that arose.
When it came to the installation Peter and the guys did a great job. There was a few windows that we needed to leave out and this was no trouble. They said they would call back wherever we were ready for them. Once we moved in there were a few minor adjustments required. I mentioned this to Michael and he got Peter to call when he was in the area.
I would highly recommend Michael and the team at EWC”

Alan Walsh Co. Kerry
(New Build 2020)


“When designing and building a contemporary house by the sea the advice we got was “make sure to find a window supplier that would provide a high quality well finished product”.

After a lengthy search we engaged Eco Window Concepts to fit Internorm Windows in our house at Youghal Co.Cork and we were not disappointed.

We are more than delighted with the finished product and in particular the quality of the window and the competence demonstrated by EWC fitting team.

We are delighted with the end result and would highly recommend Internorm by EWC”

John & Siobhan Cahill Youghal, Co.Cork
(new build 2020)


“We initially heard about Internorm windows from our contractor, who noted that they were the best quality windows that he’d seen. We found Eco Window Concepts [EWC] online and set up an appointment to meet Michael and Derek at their showroom in Bagenalstown.

The showroom was excellent – with all the Internorm range on display – so we got a great idea of how the windows & doors looked and performed. Michael and Derek were really knowledgeable and listened closely to our needs – we were quickly convinced that the EWC/Internorm offering was what we wanted.

Our site visit provide further evidence of the professionalism of the EWC team – Michael and Clive were excellent in providing input on the day and impressed our contractors and architect. There was some complexity in our eventual order – and some last minute changes – but Michael and the EWC team could not have been more helpful.

Delivery occurred exactly as planned [despite COVID] – and again, Clive was superb in ensuring that the installation went without a hitch – again, our contractors and architect were more than impressed with the attention to detail and the final finish.

We are delighted with the final outcome – the quality of the Internorm windows and doors is exceptional and they have been installed to the highest standards. The EWC team were a pleasure to deal with and most importantly for us, kept every commitment they made along the way.

I’d recommend Internorm windows and doors to anyone looking for a high-performing, high-quality product – and would highly recommend EWC as a supplier”

N & S Boyle – Mayo.
(Renovation and extension – 2020)


“My wife and I moved into a newly built house in 2014 with our one year old daughter and new born son. From day one, my wife always found the hall to be very cold and drafty. After about a year, we started having problems with the hinges on the windows. Over time, I think we replaced at least one hinge on every window. Some windows we never bothered opening as we weren’t sure if we would be able to close them. We knew we have to replace the windows at some stage.
I found out about ECO Windows and Internorm windows through a fellow train commuter who works in the construction industry and was building his own passive/energy efficient home. Given this, I knew the product should be good.

I first went to the showroom in Mitcheltown and armed with basic plans of the house, number of windows and a basic idea of what we were looking for, Michael and his team were able to send us an initial quote after a few days. In December 2020, we visited the showroom in Dun Laoghaire to go through with Michael some of the ideas we had from the Internorm brochure, interior and external colours, etc. Michael gave us some very practical advice on what would and wouldn’t work. Michael and his team then conducted a complete survey of the windows being replaced which took half a day. Afterwards they sent us a near final quote for us to go through. This is best done physically window by windows. We had some questions about the finished and colours and Michael called over on two/three occasions with samples for us to see in situ. After finalising the order, we signed off on it and installation was the scheduled for around twelve weeks time. The installation proceeded pretty much on schedule.

I can’t praise Micheal’s team of fitters highly enough. There were anywhere between two and six people on-site depending on the day. The guys made great efforts to keep the mess down while working and ensured the place was clean on leaving every evening. We were never left with an open window space overnight, which was quite important with two small kids in the house. Any questions we had were always answered properly in a straightforward manner. The job took a few days longer than expected but the ethos is to do the job properly rather than to just get it done. The guys got on with the job each day, doing what needed to be done to instal the windows. Once the windows were done, the fitters and the plasterers reinstated the plaster and other bits. For example, a step had to be removed to fit a side door and the fitters replaced the step once the door was in.

It’s only been a month since the windows were installed and the increased warmth in the house and decreased noise levels are already quite noticeable. We’re very intrigued to see how the windows perform during the winter. ECO Windows are a low volume, high quality windows business.
While the windows are expensive, you get what you pay for. The improved warmth, lower noise levels and lack of maintenance going forward should pay back the extra cost of going with Internorm windows over cheaper alternatives”

O’Hanlon, Maynooth, (replacement windows 2021)


“We had the pleasure of dealing with Michael and the team during the process of ordering and fitting our windows and doors. It was a pleasure to deal with Michael and the assistance he gave when ordering the windows, opening’s etc. The fitting process was superb, very detailed and not rushed, the whole process took 5 days. I am glad my wife and I choose Internorm as the quality and service was 100%”

Padraig and Michelle, Cork
(New build – 2020)


“When we set about building our new home on a windswept, seaside location, the importance of having top- quality windows and doors soon became apparent. We looked at different options before visiting Eco Window Concepts, Bagenalstown, Co. Carlow, agent’s for Internorm, a large passive [house] manufacturer.
Michael Meaney of E.W.C., explained the advantages of quality, low u- value windows and doors to meet our requirements for an energy efficient, comfortable home. Installation went without a hitch, and Clive is readily available for any after sales service.  With windows and doors being such an important part of an energy efficient home, we would highly recommend a visit to E.W.C.’s extensive showroom before making a final decision”

Wm. Connolly
Cork. (new build – with integrated blinds) 2020.


“We recently installed Internorm sliding doors and windows on a house extension with EWC Ltd.

From the outset Michael was most helpful with advice on the aesthetics of how the finished project would look. EWC Ltd made us aware of an internal off white foil finish that has enhanced the finished product.

We selected an unusual external colour finish which did not cause any inconvenience or delay. To avoid delays and speed up construction, site dimensions and details were agreed with Michael and Clive prior placing an order. Units arrived on schedule and installed immediately.

EWC Ltd were easy to deal with and were always quick to respond to any queries that arose during the process”

Cathal Ware – Carlow. (Internorm – extension 2020)


“We are absolutely delighted with our Internorm windows and doors, after almost a year since installation. A superior product , beautifully finished and worth the extra euros. Excellent pre and post sales service, happy to recommend”

Maurice and Jackie, Cork.
(Replacement and extension)


“We commenced build of our family home in Wicklow in 2019 and although our builder who was to source all the materials and fittings, we decided to take on sourcing of good quality windows for our project. We visited showroom of EWC in Carlow and engaged with Michael Meaney who showed us various styles and options for Internorm windows and doors and who also provided us with a quote based on our requirements. At the time we obtained 2 other quotes from other window suppliers with similar product offering, but the quality of Internorm products and the service we received were far superior and therefore we decided to go with the Internorm range. From the initial engagement Michael was very easy to deal with and responded promptly to all the queries we had and from initial order to fitting service everything went as planned. Our builder was also able to engage directly with Clive, who was leading the technical support and visited the site on numerous occasions to make sure that everything was ready for fitting as agreed. Clive was very knowledgeable and experienced and offered practical solutions where required. The delivery and fitting of our windows went ahead as scheduled and the fitting crew completed the fit out within 2 days. They had great attention to detail and knew exactly what to do. In terms of pricing we initially thought that Internorm products were quite expensive, the other quotes we received from competitors for similar products had also similar price tag. The quality of the finished product was important to us and on this basis Eco Windows Concept definitely delivers value for money. We have been living in our house for a year now and we had no issues with any of the installed windows. The certificate and spec we got for the installed windows was more than sufficient for us to obtain BER A rating and we are truly delighted with the final result. We are very happy with our Internorm windows and we do recommend Eco Windows Concept to our friends and family who are building or renovating their houses”

Blessington, Co Wicklow.
(New build) 2019.


“Our experience with EWC was nothing but positive. We had seen the Internorm windows at a Self-build show & contacted Michael Meaney to learn more about the product. Michael invited us to their showroom where he spent time demonstrating & explaining the benefits of Internorm windows. From start to finish we found Michael a pleasure to deal with , their product is second to none, it was deliver on time & fitted by installers that took the time to ensure every window was fitted with 100% accuracy. It is the quality of the product along with the conscientious team from sales to fitting to after sales that sets Eco Window Concepts apart. They are not the cheapest on the market but they are certainly the best. If you want a lifelong quality product go to EWC”

John & Maura O’Sullivan, Kerry
(Internorm – extension and renovation – 2019)


“I have worked with Michael from EWCL on a number of projects and would have no hesitation in recommending him on any project. The standard, fit and finish of the Internorm products is best in class, and Michael’s professionalism and skill of his team of installers is excellent. For anyone looking for outstanding performance, durability and finish, Internorm products would be top of my list”

Mel Reynolds, Architect.
Dublin (used Internorm in much acclaimed Sandycove Mews Passive House)


“We built a BER A-1 rated passive house and installed Internorm’s triple-glazed windows, doors and sliding doors in our house. EWC who supplied and installed them were very accommodating, flexible and fast to react to our queries and requirements. We found Michael and his team of experts such as Clive, Peter and others very pleasant to deal with in the whole process of advice, ordering, supply, installation and after sales service. We appreciated their great attention to detail, pride in their work and finding good practical solutions which is so important when building this type of house. We highly recommend them to any one considering this type of installation.

We have nothing but praise! We wish all suppliers and contractors were like you!”

Roel & Eileen
(New build – Waterford)


“We built a holiday home in Kerry in 2019. We used Internorm Doors and Windows (supplied and fitted by Eco Window Concepts) and have to say we are delighted with them. We were lucky enough to have built in a cantilevered corner which meant we could use a post-less glass to glass corner, this is amazing. No one else could give us what we were looking for, glass corner and sliding door in such a big size.

We found dealing with EWC easy. Clive and Michael are very knowledgeable and offered good technical advice, little things like night vents, opening directions might not seem important at design stage but make a huge difference when you’re living in the house. The quality of the product is second to none and Peter and the lads took great care with the installation. There were a few little tweaks and adjustments needed as the build concluded and when I asked the guys to come back they were on site within a week or so, even coming from Carlow.

We are definitely satisfied with Internorm and the service we got from EWC”

EO’C, Barrow, Co Kerry.


“As windows and doors have a big impact on the performance and comfort of your home and are something that you hope will last for the lifetime of your house, we took our time on researching and visiting different window suppliers before making our minds up. We heard some horror stories in relation to some window suppliers so we wanted to make sure everything was going to be 100%.

We first came across Eco Window Concepts and the Internorm range at the Self-Build Expo in City West and straight away their product stood out aesthetically and in terms of quality.
We got in contact with Michael after the expo and he and his team were extremely accommodating from the start. Our work schedule meant that between my wife and I, we were working Monday to Saturday, so Michael agreed to open his showroom late one evening and this allowed my wife and I to visit together.

We received cheaper quotes off of different suppliers but with the cheaper quotes came inferior windows and doors. The Internorm windows have a frame over 90mm thick and the U-values ranged from 0.67 – 0.75 W/m2K with the majority of the windows having a U-value of 0.71 W/m2K. All other window suppliers we spoke to had window frames 70mm thick and U-values up around 0.9 W/m2K.

When we ordered the windows we were told there would be a 10 week lead time and they would be due on site the week of the 17th February. The windows arrived as promised on the week of 17th of February. Clive and the team of installers attention to detail was second to none, they were not trying to get in and out as quick as possible, they took their time to ensure everything was perfect. The first thing the lads done when the windows arrived was leave the window in the room it was being installed in, they then went around and mechanically secured the windows to a wall in the room to ensure the windows could not be accidentally knocked over. The lads spent the week installing the windows and doors making sure every aspect of the install was perfect; from asking about the floor finish in the rooms i.e. carpet, tile, laminate (to ensure no clash with openings once finished floor was complete) to making sure all windows and doors sealed nice and tight when closed.

When I was working on the house I accidentally sprayed one of the window frames with expanding foam and tried to wipe it off but only smeared it and made it worse. I rang Clive to ask what would the best product be to remove the expanding foam without damaging the frame. Clive came back to fit the handle on the front door and he also removed the expanding foam from the window frame for me.

The windows have been installed now for 18 months and we have never had any issue with any of the windows or doors.

When we are sitting at home on a winters night and we can see condensation form on the outside and then that freeze we know we made the right decision with Internorm.”

Danny & Claire Dowd
(Internorm – new build 2019)


“After our visit to Michael at his Eco Window Concepts showroom in Dun Laoghaire we knew that we wanted to go with his products.
We were impressed with the solid quality of the Internorm Windows and the Solarlux bi-fold doors and decided to go for both.

Michael has a very knowledgeable and professional team of fitters working for him. They made the whole process as seamless and painless as possible. The quality of their work was second to none and their attention to detail made the real difference to the job. Some minor snags were addressed immediately.

The additional heat retention of the new Windows is noticeable and has also a big financial impact compared to the old windows. The extra sound proofing of the Windows makes for very quiet nights. Where previously we heard all taxis and food deliveries at night there is now silence.

EWC was very easy to deal with and is a very professionally run outfit. We can only highly recommend”.

Helmut & Rosemary
Replacement – Bray – 2019.


“Myself and my wife had planned our new build property on an exposed elevated site in Co Carlow for many years and viewed numerous window companies’ products. We really wanted to get our choice of windows and exterior doors right both from an aesthetic, quality and BER point of view. We really did not need to look any further than Eco Window Concepts & the Internorm product.

From the moment we viewed the product in the EWC Bagenalstown Branch we knew this was the product for us. Michael & Derek could not have been more helpful with our choice of windows and doors, especially our large 4 piece slider which was important to us and not possible from other suppliers. Production and delivery was as planned and arranged seamlessly. Clive and the team on site fitting couldn’t have been more professional and really took time and care while fitting the Internorm windows and doors, while maintaining a tidy site.

Overall we were delighted to have chosen this local company and two winters later we are still raving about the product and thankful that we extended the budget slightly to go with EWC & Internorm. We would have no hesitation in recommending Michael and EWC. You will not be sorry”

John & Pamela Hayden
(new build 2018)


“We are extremely satisfied with Internorm and the team at EWC.  We contacted and considered lots of different window companies before deciding to go with them. We consider windows to be one of the most important decisions in a new build. Not all companies could accommodate the expansive glazing we required but Internorm had several options for us. From the start we found Michael very helpful, knowledgeable and professional. Although they were more expensive than some alternatives we considered, we are definite we made the right decision in choosing both Internorm and specifically getting them from EWC.
There were a few minor issues, which there always are with complicated order, however they were promptly dealt with. Michael pays 100% attention to detail and has an excellent team working with him. I have no hesitation in recommending Michael and EWC”

P&N Coyle, Kildare.
(Renovate and extension)


“Having visited all of the trade shows and researched a number of window brands, including checking out references from various home owners and visiting previous installs, we decided to purchase our Internorm Windows and Doors from Eco Window Concepts (EWC).

We are delighted with our decision and the quality of both the Internorm products and the installation. Our front door and the windows with the integrated blinds have been admired by a number of the tradesmen and visitors to our site.

The fitting crew employed directly by EWC couldn’t have been more helpful and, whilst we considered purchasing from another agent at the time in order to try and save some money we are delighted now, that we went with EWC as their fitting and after sales service is exceptionally good and a critical element in such an important order”

Thomas & Olesea, Waterford.



“We are finally about to move into our new home 21 months after starting, not too bad when you consider the site was closed for 6 months in total due to COVID. In any event I just wanted to drop you a line to thank you and the team for a first class and attentive service from the outset of our journey from the time we first met almost 5 years ago.

As you know I did a lot of research in advance, with the windows and glazing being a key element of the project. In the end opting for Internorm was an easy decision as we did not find any other product out there to match the quality of Internorm. I have to say that it is a decision we have not regretted. As you alluded to from day one of our engagement, they are at the premium end of the market and so you pay a bit more, but it is a case of getting what you pay for. The windows themselves look fantastic with the oak internal finish downstairs and the white wood effect upstairs. The quality is very obvious and you can clearly see what you are getting for your money. I certainly look forward to the savings which we will achieve in terms of energy costs in the years ahead as a result of the triple glazing. We are also very impressed with the door which has now become a signature piece in that aspect of the house.

In terms of delivery and installation everything ran like clockwork. What was particularly impressive is that you were able to correctly predict the delivery date 10 weeks out with the truck arriving from Austria on the morning predicted. This was despite the impediments around the movement of goods across Europe just prior to the introduction of Brexit. Your team fitted the windows in a few days and the overall service was extremely professional.

Overall we are very happy to-date with both the service received here on the ground with a special thanks to you, Clive and the team that fitted and also the overall quality of the product. I would have no hesitation in recommending the windows and EWC as a company to deal with and have already done so”

Thanks again.


M & L Broderick