Wall Insulation Ireland: SEAI Grants up to €8,000
The directory of SEAI-registered cavity wall, external wall and dry-lining contractors across all 26 counties. Better Energy Homes grants from €1,700 to €8,000, no income test.
SEAI wall insulation grants are at record levels in 2026, and most eligible homes have not yet claimed
Wall insulation grants in Ireland reached their highest levels in 2026, with external wall insulation now attracting up to €8,000, cavity wall up to €1,700 and dry-lining up to €4,500 under the Better Energy Homes scheme. No income threshold applies, so if your home was built before 2011 you are likely eligible regardless of household income.
Despite record grant levels, the majority of eligible homes in Ireland have not yet been upgraded. Rising energy costs and growing awareness of the grants are driving a significant increase in homeowners actively searching for registered contractors. Those who act now are doing so while grant levels are at their peak and contractor waiting times are still manageable.
Free to use. No sign-up required.
How much can you claim?
Grant amounts are fixed by the SEAI and paid directly to your contractor. You pay only the balance after the grant is deducted, with no claiming money back.
Filling the gap between your inner and outer walls, the quickest and most affordable upgrade for most Irish homes.
Learn more →A full insulating layer fitted to the outside of your home. The highest grant and the biggest transformation.
Learn more →Insulated boards fitted inside your walls, ideal where external work is not possible or permitted.
Learn more →Grants are available through the SEAI Better Energy Homes scheme. Most works qualify if your home was built before 2011.
Every contractor on this site is SEAI-registered
No unvetted or unlicensed installers, ever. Every listing is verified against the SEAI Better Energy Homes scheme before it appears in our directory.
Get insulated in three steps
Checking your eligibility through to a warmer home is straightforward. Your contractor handles all the grant paperwork from start to finish.
Check your grant
Enter your home type and county to see exactly what you qualify for under the Better Energy Homes scheme, in under a minute, at no cost.
Find an approved contractor
Browse our directory of SEAI-registered installers working in your area. View their details and enquire directly, free of charge, with no middleman involved.
Book and save
Your contractor handles the full SEAI application and grant claim from start to finish. You pay only the net cost after the grant, with no forms to complete and no waiting for a refund.
Which type of insulation suits your home?
The right type depends on your wall construction, your budget and what the SEAI will grant you. Expand any card to see typical costs and savings.
Cavity Wall Insulation
Insulation pumped into the cavity between your inner and outer walls, sealing the gap that lets heat escape.
Best for: homes with a cavity between inner and outer walls, covering most Irish houses built between 1940 and 1990.
External Wall Insulation
A thick insulating layer and fresh render fitted to the outside of your home, wrapping it in a continuous warm shell.
Best for: solid-wall and older homes. Carries the highest grant and transforms the appearance of the house.
Dry-Lining
Insulated plasterboard fixed to the inside face of your external walls, fitted room by room with minimal disruption.
Best for: solid-wall and terraced homes where external work is not possible or permitted.
Find contractors in your county
Browse SEAI-registered insulation contractors in all 26 counties. Every listing is free to view and contact directly.
Why choose an SEAI-approved contractor?
"We had external wall insulation fitted last winter and the difference is night and day. The contractor sorted the entire SEAI grant, €8,000 straight off the price, and the house holds its heat now in a way it never did before."
Not sure which insulation suits your home?
The right type depends on your wall construction and the age of your property. Our grant checker identifies your eligible upgrade and maximum grant in under a minute.
Common questions about SEAI wall insulation grants
Most homes built and occupied before 2011 qualify for SEAI wall insulation grants. Your property must be your main residence or a rental you own, and the work must be carried out by a registered contractor. Eligibility is based on the age and type of your home, with no income test.
Cavity wall, external wall and internal dry-lining insulation all qualify under the Better Energy Homes scheme. The walls must meet the technical standards set by the SEAI once the work is complete. A BER assessment is required after the works to release the grant.
Cavity wall insulation is usually completed in a single day. External and internal insulation are larger projects and typically take one to three weeks depending on the size of your home. Grant approval from the SEAI is normally confirmed within a few weeks of applying.
Yes. You can claim wall insulation alongside other SEAI grants such as attic insulation, heat pumps and solar panels. Heat pump installation must be carried out by a RECI-registered electrician; electriciansinireland.ie lists approved installers. Combining measures often improves your home's energy rating faster and can unlock a bonus grant. You can also upgrade in stages rather than applying all at once.
It is the Government grant scheme run by the Sustainable Energy Authority of Ireland to help homeowners make their homes warmer and more energy efficient. It offers fixed grant amounts towards approved upgrades including wall insulation. The scheme is open to homes built before 2011.
Yes. To claim an SEAI grant the work must be carried out by a contractor registered with the scheme. Using an approved installer guarantees the work meets the required technical standards and that your grant will be paid. Every contractor in this directory is SEAI-registered.
Insulation guides for Irish homeowners
Before you contact a contractor, read these guides. They cover costs, grants and how to choose the right type of insulation for your home.
Cavity wall vs external wall insulation: which is right for your home?
A clear breakdown of cost, disruption and savings to help you choose the right upgrade for your walls.
Read guide →GrantsHow to apply for a SEAI grant in 2026
Step by step through eligibility, paperwork and timelines for the Better Energy Homes scheme.
Read guide →CostsHow much does wall insulation cost in Ireland?
Real price ranges for cavity, external and internal insulation, before and after your government grant.
Read guide →Find an SEAI insulation contractor near you
Browse SEAI-approved contractors across all 26 counties. Free to use, no sign-up required.
All contractor contact details listed directly. No middleman.
Find a wall insulation contractor near you
Browse SEAI-registered installers across all 26 counties. Get free quotes and check your grant eligibility before you call.