How much is the SEAI insulation grant?

It depends on the measure and house type, and SEAI updates amounts. Check the current figures on seai.ie.

Can I get a grant after the work is done?

No. You must have SEAI grant approval before work starts.

Do I need an SEAI-registered contractor?

Yes. Grant-funded work must be done by an SEAI-registered contractor. We work with SEAI-registered partner AP Eco.

Is there a grant for cavity wall insulation?

Yes, SEAI offers a cavity wall insulation grant for qualifying homes.

Is there a grant for external wall insulation in Dublin?

Yes. The SEAI EWI grant applies nationwide, including Dublin, for qualifying homes.

Home insulation grants in Ireland (2026): SEAI guide for Dublin homeowners

Updated 4 November 20267 min read

External wall insulation boards being fixed to a Dublin house

Short answer

SEAI offers grants in Ireland for external wall insulation, internal (dry-lining) insulation, cavity wall insulation and attic insulation on qualifying homes. You must apply and get grant approval from SEAI before work starts, and the work must be done by an SEAI-registered contractor. Grant amounts change, so always check seai.ie. Phoenix Maco Ltd installs and certifies external, internal and cavity wall insulation in Dublin and works with SEAI-registered partner AP Eco on grant applications.

Key points

Grants cover external, internal, cavity wall and attic insulation.
Apply to SEAI and get approval before any work starts.
Work must be done by an SEAI-registered contractor.
Amounts depend on the measure and house type; check seai.ie.
A BER after the works is usually required.

Which insulation grants are available?

Eligibility usually depends on the age of the home. Check current rules and amounts on seai.ie.

External wall insulation (EWI) — the biggest upgrade for solid-wall houses.
Internal wall insulation (dry-lining).
Cavity wall insulation — pumped insulation for houses with a cavity.
Attic (roof) insulation.

How to apply, step by step

Pick the measure and get a quote from an SEAI-registered contractor.
Apply online with SEAI and wait for grant approval.
Have the work done and certified.
Complete the BER and submit paperwork; SEAI pays the grant.

How Phoenix Maco helps

We survey your house, advise which insulation suits it, install and certify the work, and coordinate the grant side with our SEAI-registered partner AP Eco. External wall insulation starts from €160/m² before any grant.

Frequently asked questions

How much is the SEAI insulation grant?: It depends on the measure and house type, and SEAI updates amounts. Check the current figures on seai.ie.
Can I get a grant after the work is done?: No. You must have SEAI grant approval before work starts.
Do I need an SEAI-registered contractor?: Yes. Grant-funded work must be done by an SEAI-registered contractor. We work with SEAI-registered partner AP Eco.
Is there a grant for cavity wall insulation?: Yes, SEAI offers a cavity wall insulation grant for qualifying homes.
Is there a grant for external wall insulation in Dublin?: Yes. The SEAI EWI grant applies nationwide, including Dublin, for qualifying homes.
Who installs insulation in Dublin?: Phoenix Maco Ltd installs and certifies external, internal and cavity wall insulation in Dublin. Call or WhatsApp 083 874 5535.

Official Irish sources

Rules, grant values and rates change. This article is general information, not professional advice — confirm the current position with the relevant body or your own architect, engineer or surveyor.