Attic insulation grant in Ireland
Attic insulation is one of the most cost-effective energy upgrades for Irish homes because heat loss through the roof can be significant. It is also a practical first step before bigger upgrades like heat pumps, solar panels or window replacement.
In 2026, SEAI attic insulation grant values are listed at €2,000 for detached houses, €1,500 for semi-detached or end-of-terrace homes, €1,400 for mid-terrace homes and €1,100 for apartments. First-time buyers and homeowners on qualifying welfare payments may receive higher support.
SEAI attic insulation grant values and typical costs (2026)
| Job | Typical amount |
|---|---|
| Detached house grant | €2,000 |
| Semi-detached/end terrace grant | €1,500 |
| Mid-terrace grant | €1,400 |
| Apartment grant | €1,100 |
| Enhanced support for eligible applicants | Up to €2,500 |
| Typical attic insulation project | €1,500 – €3,500+ |
| Attic clearance or ventilation work | Extra |
Prices are typical 2026 estimates and vary by job, condition and location.
What installers should check
- Existing insulation depth and condition.
- Ventilation at eaves and roof space.
- Water tanks, pipe lagging and attic hatch insulation.
- Safe access, attic flooring and stored items.
- Whether old insulation needs removal because of damp, pests or contamination.
Grant timing matters
Check current SEAI rules before ordering work. Homeowners generally need to use an eligible contractor and follow the grant process correctly. Keep documentation because it may matter for grant payment, BER evidence and future home upgrades.
Use HomePros.ie to compare insulation quotes
Post your attic size, house type, current insulation depth and photos of the attic hatch or roof space. Insulation installers can then advise on grant-ready work, ventilation and any preparation needed before installation day.
Frequently asked questions
How much is the attic insulation grant in Ireland?+
SEAI lists 2026 attic insulation grant values of €2,000 for detached houses, €1,500 for semi-detached/end terrace, €1,400 for mid-terrace and €1,100 for apartments.
How much does attic insulation cost before grants?+
Many attic insulation projects cost around €1,500–€3,500+, depending on house size, access, ventilation and preparation work.
Can attic insulation help before installing a heat pump?+
Yes. Better insulation reduces heat loss and can make heating upgrades more effective.
Can HomePros.ie help me find insulation installers?+
Yes. Post your attic insulation job and compare local insulation professionals.
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