Grants offered are provided by the Government of Ireland through the Sustainable Energy Authority of Ireland (SEAI)
Why Cavity Wall Insulation Matters
Cavity wall insulation is one of the most effective and affordable ways to improve your home’s energy efficiency.
At Retrofit Design Ltd, we’ve completed thousands of cavity wall insulation projects across Ireland – helping homeowners reduce heat loss, lower energy bills, and achieve higher BER ratings.
Properly insulated walls make your home warmer in winter, cooler in summer, and more comfortable all year round.
What Is Cavity Wall Insulation?
Cavity wall insulation fills the space between your home’s external and internal walls with a high-performance insulating material.
This acts as a thermal barrier, keeping warm air inside and preventing cold air from circulating through the cavity.
By reducing heat loss through your walls, cavity wall insulation helps you:
- Use less energy to heat your home
- Enjoy more stable indoor temperatures
- Reduce your carbon footprint
Benefits of Cavity Wall Insulation
- Lower energy bills – save up to 30% on heating costs
- Improved comfort – warmer in winter, cooler in summer
- More sustainable living – reduce energy use and emissions
- Access SEAI insulation grants – financial support for homeowners upgrading energy efficiency
SEAI Grants for Cavity Wall Insulation
Irish homeowners can access SEAI grants to make insulation upgrades more affordable.
Through the SEAI One Stop Shop or Better Energy Homes schemes, you can receive funding towards cavity wall insulation and other energy-saving measures.
Why Choose Retrofit Design Ltd?
- SEAI-approved roof insulation specialists
- Over 50 years’ combined experience in home retrofitting
- Trusted by local authorities and homeowners nationwide
- Competitive pricing with a focus on quality workmanship
- Local expertise with the reliability of a national service
FAQs - Cavity Wall Insulation
How long does cavity wall insulation take?
Most installations are completed in just one day, with minimal disruption to your home.
Is cavity wall insulation suitable for all homes?
It’s ideal for houses built with unfilled cavity walls. Our survey will confirm if your property is suitable.
Will cavity wall insulation improve my BER rating?
Cavity wall insulation significantly improves your home’s Building Energy Rating (BER) and overall efficiency.
Ready to Save on Heating Bills?
Start your energy-saving journey today.
Contact Retrofit Design Ltd to book your free cavity wall insulation survey and quotation.
What our Customers Say
Ann, Co. Laois
