Insulation grants
Up to €2,000 for attic insulation, or up to €2,500 if you are a first-time buyer or on a qualifying welfare payment. Up to €8,000 for wall insulation.
Last checked June 2026
What it is
Attic, cavity, internal and external wall insulation.
Who can get it
- You own the home you want to insulate
- You have grant approval from SEAI in place before any work starts
- You use an SEAI registered contractor, or have a One Stop Shop manage the job for you
- Attic insulation is usually the most cost-effective upgrade. A house loses around 20 to 30% of its heat through the roof.
- There are three types of wall insulation: cavity, external and internal.
- If you have already had a grant for one type of wall insulation, you can now apply for a second wall measure.
- First-time buyers and homeowners on a qualifying welfare payment get a higher fixed amount for attic insulation. A higher cavity insulation grant is also available for those on qualifying welfare payments.
How to apply
Applications go through SEAI. The official page has the full eligibility rules and the application itself.
Go to the official page →Checked against the official source on 13 June 2026. Always confirm the details on the official page before applying.
Questions people ask
How much can I get for insulation in 2026?
SEAI insulation grants are worth up to €8,000 depending on the type of insulation and your home. Attic, cavity, internal and external wall insulation are all covered.
Do I apply through SEAI?
Yes. Insulation grants are run by SEAI. You apply before the work starts and use an SEAI-registered contractor. This tool links you straight to the official page.
Can I get more than one energy grant?
Yes. You can combine grants, for example insulation with heating controls or solar. The one stop shop route can manage a full upgrade for you.
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