Official grant values
The current SEAI attic insulation grant is €2,000 detached, €1,500 semi-detached, €1,400 mid-terrace and €1,100 apartment.
SEAI attic guide
Attic insulation grant Ireland: a plain-English SEAI guide
If you are searching for the attic insulation grant in Ireland, this is usually one of the best first places to look. For many older homes, attic insulation is one of the simplest ways to improve comfort and cut heat loss without the same homeowner cost as larger upgrades.
Often a strong first upgrade: attic insulation is commonly one of the easiest comfort wins in an older home.
House type still matters: detached, semi-detached, terrace and apartment layouts can change the likely cost and route.
Use the checker for the practical version: our checker helps you see likely support by Eircode, house type and build year before speaking to installers.
Why attic insulation gets so much attention
People searching for attic insulation grant Ireland are usually looking for an upgrade that feels achievable. That is why attic insulation often stands out. In many homes it can improve comfort quickly, and after grant support the homeowner contribution can be much lower than people expect.
What affects the final route
- House type: detached, semi-detached, mid-terrace and apartment homes do not all behave the same.
- Roof exposure: this is especially relevant in some apartment cases.
- Existing insulation: the installer still needs to confirm what is already there.
- SEAI rules: grant conditions and values should always be checked on the live SEAI page.
Official March 2026 attic grant facts
Higher support cases
SEAI says some eligible first-time buyers and homeowners on qualifying welfare payments can reach up to €2,500 for attic insulation.
Apartment rule
For apartments, the attic route only applies where the apartment is top-floor or otherwise roof-exposed.
SEAI median costs
Latest SEAI median costs are €2,500 detached, €1,983 semi-detached, €2,000 mid-terrace and €2,080 apartment, which is why attic insulation can still end up costing only hundreds after the grant in many homes.
What to check before you speak to an installer
A quick attic grant guide should save time, not create more confusion. These are the practical checks that usually matter most.
Know your house type
Detached, semi-detached, mid-terrace and apartment homes can have very different roof areas and access conditions, so give the installer the right house type from the start.
Be clear on the age of the home
Build era can affect the likely grant path, existing insulation levels, and what the installer expects to find once they assess the attic properly.
Ask what the grant covers
The grant helps, but it is still worth asking what is included in the installer scope, such as insulation depth, access work and any small extras that may come up.
Use a checker first
Running through a house-type and Eircode checker first can help you understand whether attic insulation is likely to be the right first upgrade before you start taking calls.
Check attic insulation support by Eircode, house type and build year
If you want the practical version, use the HomeGrants.ie checker. It helps you see likely grant support and typical homeowner cost before deciding whether you want local SEAI-registered installers to contact you.
Frequently asked questions
Is attic insulation one of the cheapest upgrades after the grant?
For many older homes, yes. That is a big reason why attic insulation is so often treated as an early upgrade rather than something to leave until later.
Does attic insulation make sense before bigger upgrades?
Very often it does, especially when comfort is poor and the attic is under-insulated. It can be one of the easiest ways to improve the feel of the home before looking at larger capital work.
Where should I verify the attic insulation grant?
Use the official SEAI attic insulation grant page for the live rules and grant values, then use the checker if you want a faster house-type and Eircode-based route through the options.