Transform the Way Your Home Looks and Feels
What is External Wall Insulation?
External Wall Insulation (EWI) involves fixing rigid insulation panels to the outside of your home’s walls, then finishing them with a modern, weatherproof render.
Result: Your home feels warmer, looks better, and costs less to heat.
Why choose External Wall Insulation?
Is My Home Suitable?
We recommend a free survey to confirm suitability, but generally:
- For solid‑wall and hollow‑block homes
- Homes with poor insulation or constant cold spots
- Properties undergoing renovation or redecoration
- Detached, semi-detached and terraced homes with sufficient external space
If your home has cavity walls, Cavity Wall Insulation may be a more cost-effective solution.
Our External Wall Insulation System
We use high-performance EWI systems trusted across Ireland and Europe.
- Insulation Boards: Typically 100mm Expanded Polystyrene (EPS) or 120mm Mineral Wool
- Fixing Method: Mechanically fixed + adhesive
- Finish Options: Acrylic render, dry dash, brick slip or colour-tinted coatings
- Breathable, weatherproof and long-lasting
SEAI Grants Available
The Sustainable Energy Authority of Ireland (SEAI) offers generous grants for homeowners
installing EWI:
BlueBuild will support you through the grant application process from start to finish.
How Our Process Works
Typical EWI installations take 7–10 working days, depending on property size and weather conditions.
Frequently Asked Questions on Insulation for your home
We’ve answered some common questions to help you with any concerns
Soltherm External Wall Insulation systems come with a manufacturer-backed 30-year guarantee when installed by approved installers.
Yes — for the better. You’ll choose a new exterior finish, colour and texture.
In most cases, no. If you’re changing the external appearance significantly (e.g., a colour change in protected structures), we’ll advise.
Minimal. All work is external, and we protect all surrounding areas. You remain in your home throughout.
Hear from Our Customers
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Just had my house external wrapped by BlueBuild, found the lads to be very clean and tidy and efficient. Michael painted our plinth. Tracey and Jessica in the office were very prompt and helpful and a special thanks to Jason over saw the project. We would absolutely recommend BlueBuild to anyone who asks .
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Brilliant insulation team. Very efficient and responsive. Done quickly to a very high standard and was amazed at how well they sorted out external waste and down pipes. Excellent job. Tony. Monkstown.
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BlueBuild recently did full energy upgrade on our house. Fast and tidy employees. Tony Brady project manager very helpful and efficient . Would strongly recommend.
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Just want to say that the lads working on our house were very good. I would like to thank them all for the hard woek and the speed it all was done .Thanks to David our Project manager for his help.
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We had a fantastic experience with Blue Build. The whole team did a brilliant job wrapping our house, and the quality of the workmanship was excellent. Jason, our project manager, was extremely helpful, professional, and a pleasure to deal with throughout the process. The team were reliable, hardworking, and very professional from start to finish. We’re delighted with the finished result and would highly recommend Blue Build to anyone looking for a great job done.
Clean energy for homes and businesses with BlueBuild
Smart, sustainable energy solutions tailored to you.