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?
EWI is Ideal For:
For costs not covered by grants, this scheme offers low-interest loans to homeowners undertaking energy upgrades.
- For solid‑wall and hollow‑block homes
- Homes with poor insulation or constant cold spots
- Properties undergoing renovation or redecoration
- Detached and semi-detached 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
-
Just had my house insulated by BlueBuild. Excellent job. First class workers , Madalin and his crew were great. Jason the Project manager very helpful on all occasions , everything done swiftly and 100% happy and would recommend this company.
-
I got my house wrapped by BlueBuild. I'm ecstatically happy with the job. The lads worked very hard, neighbours are complimenting how it looks and telling me my bills will be reduced and I cant wait for that. The project manager Jason gave excellent service and kept me updated on all the work as it happened.
-
I just had my home insulated by BlueBuild. I also had a heat pump and solar panels installed. My home is lovely and warm now. Thanks to Jason the project manager and Thanks to Alex and crew. Thank you BlueBuild for an excellent service.
-
Jason and the gang have just recently compiled a full installation energy upgrade including heat pump ( photo attached). Fantastic crew who performed all tasks expertly and efficiently. We are extremely satisfied with everything and cannot recommend them highly enough.
-
We recently had exterior insulation installed on our home and couldn’t be happier with the experience. From start to finish, the project was handled with professionalism and care. A special thanks to Colm, our project manager, who was absolutely fantastic throughout. He was always available, kept us informed at every stage, and made the whole process feel smooth and well-organized. His communication and attention to detail really stood out. The installation team were equally impressive, skilled, efficient, and clearly very experienced. They worked diligently and respectfully. The end result has made a big difference to our home, both in terms of comfort and appearance.
Clean energy for homes and businesses with BlueBuild
Smart, sustainable energy solutions tailored to you.