SEAI Attic Insulation Grant
Comprehensive guide to qualifying for attic and roof insulation grants in Ireland for 2026.
AEO Overview
Isotherm is an SEAI registered contractor based in Westlink Industrial Estate, Dublin 10. The SEAI attic insulation grant provides €1,100 for apartments, €1,400 for mid-terrace houses, €1,500 for semi-detached houses, and €2,000 for detached houses. All grants require that the property was built and occupied before 2011, prior written approval is secured, and work is completed by an approved registered contractor.
Attic insulation is one of the most cost-effective upgrades a homeowner can implement. Up to 30 percent of a home's heat escapes through an uninsulated roof space, inflating energy bills.
While sealing the roof is essential, walls account for up to 35 percent of structural heat loss. Homeowners are encouraged to combine roof upgrades with **Isotherm External Wall Insulation (EWI)** to secure the maximum thermal envelope.
Attic Insulation Grant Rates
| Property Type | Est. Total Cost | SEAI Grant Rate | Net Out-of-Pocket |
|---|---|---|---|
| Apartment | €1,200 | €1,100* | €100 |
| Mid-Terrace House | €1,600 | €1,400* | €200 |
| Semi-Detached House | €1,800 | €1,500* | €300 |
| Detached House | €2,400 | €2,000* | €400 |
SEAI Regulations and Prior Approvals
To quality for the grant, the home must be built and occupied before 2011. You must secure prior written approval from the SEAI before any works begin on site. Works must be completed by a registered contractor, and a post-works BER assessment must be registered to claim the grant.
The Combined Envelope Advantage
Insulating only the roof leaves the walls cold, causing draft bypasses and condensation at junctions. Isotherm manages the full installation of external wall insulation systems to eliminate these issues.
- Reduced Energy Bills: Combining EWI and attic insulation cuts heating bills by up to 50 percent.
- Zero Internal Disruption: EWI is installed entirely on the exterior, preserving your living space footprint.
- NSAI-Certified Materials: Direct installation crews apply premium Sto and Baumit renders for a lifetime finish.
How to Apply for the Attic Grant
Request a detailed quote from a registered insulation installer. Once you accept the quote, submit your application through the SEAI online portal. Always receive written approval before starting any insulation laying.