Transform the Way Your Home Looks and Feels

External Wall Insulation is an ideal upgrade for solid-wall and hollow-block homes, improving comfort, energy efficiency, and overall appearance— all in one upgrade.

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?

Improved Comfort
Warmer rooms and fewer draughts
Lower Energy Bills
Reduce heating costs by up to 30–40%
Modern New Finish
Instantly upgrade your home’s appearance

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:

Detached House: Up to €8,000
Semi-detached / End of terrace: Up to €6,000
Mid-terrace: Up to €3,500

BlueBuild will support you through the grant application process from start to finish.

How Our Process Works

1
1
Free Survey/Suitability Assessment
2
2
Detailed Proposal & Grant Advice
3
3
Professional Installation by certified technicians

Typical EWI installations take 7–10 working days, depending on property size and weather conditions.

4
4
Final Render Finish in your colour/style of choice
5
5
Post-install inspection & completion certificate on

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

  • Have just had the outside of my house insulated by Bluebuild, Tony and his crew were absolutely fantastic and all real gentlemen. Very professional from the start right through to the finish, place was spotless when they left
    Alexandra Kellett
  • Had my house wrapped recently & am delighted with Bluebuild team. Very professional with their work Inside & out . Fast, efficient & very clean . Would highly recommend them From the project manager David & to all the crew Great workmanship altogether
    Fiona Doyle
  • I recently had my house wrapped by BlueBuild, and the entire experience was smooth from start to finish. My first point of contact was David, the project coordinator, who organised everything efficiently and kept the process running seamlessly. Different members of the team came by throughout the project to get things moving, and everyone was professional, friendly, and considerate. They always called in advance to make sure I was at home before arriving. Although this type of work can be quite messy, I was pleasantly surprised by how clean they kept both the inside and outside of the house throughout the job. They made a real effort to minimise disruption at every stage. Once all the preparation work was completed, John and his team arrived to carry out the wrapping. There were five people working incredibly hard, even on a Saturday, and their work ethic was outstanding. They worked nonstop and always made sure the areas were left as clean and tidy as possible before leaving each evening, even when they were returning the next day. On the final day, the team went above and beyond, cleaning the windows, blowing away dust, wiping down surfaces, and even covering the skip with plastic to ensure nothing could blow out before collection. The attention to detail and professionalism really stood out to me. I’m absolutely delighted with the finished result and the smooth overall experience. I would definitely use BlueBuild again, and I’m already speaking with them about solar panels. Without hesitation, I’ll be choosing the same company for that project too.
    Noelia O'Reilly
  • Very happy with the work that was done on the house. The improvement it has already it brilliant. The men doing the work were so efficient and friendly too.
    Patrick O'Really
  • Thanks for all the great work done by the team ,they kept the place very tidy and worked long days to get it finished for me . My project manager was a great help always able to take my call . Thanks to the team in the back office also regards Edward
    Edward Merrigan
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