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 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
Northern Ireland Grants for External Wall Insulation
External Wall Insulation is a highly effective solution for solid wall homes, but grant support in Northern Ireland is very limited. Current schemes focus on loft and cavity wall insulation, so homeowners should generally expect to self-fund EWI, with only rare case-by-case exceptions.
Our team will confirm suitability, provide upfront cost guidance, and flag any funding that may apply.
👉 Looking for funded insulation options? Visit our Residential Grants page to see what you’re more likely to qualify for.
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
Our systems come with a 10–25 year warranty and can last decades with proper care.
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.
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