How much of each square metre the grant pays
The external insulation grant is a fixed amount, so what it pays per square metre depends on your wall. On a typical semi-D it's about €66 per m², on a typical mid-terrace about €72 and on a typical detached house about €63. Smaller houses get more per square metre.
The fixed grant, spread over your wall, by house type and size.
Free, no obligation. One registered contractor prices it, not five.
- about €66per m² on a typical semi-D
- about €72on a typical mid-terrace
- about €63on a typical detached house
- €110–€160per m² for the system
Grant per m², by size
| House | Smaller | Average | Bigger |
|---|---|---|---|
| Detached | about €83 | about €63 | about €47 |
| Semi-detached | about €75 | about €66 | about €58 |
| End of terrace | about €79 | about €70 | about €60 |
| Mid-terrace | about €90 | about €72 | about €54 |
| Apartment | about €102 | about €70 | about €52 |
Against a system price of €110 to €160 per m², the grant covers a large part of the boards and render on a smaller semi-D or terrace, and a smaller part on a big detached house.
Your grant against your walls
Four quick taps. You see your grant, your wall, what a job that size typically costs and what's left. Your number is only asked for at the end, if you want a price.
An average semi-detached house: about 91 m² of outside wall, a typical job of about €23,200, the €6,000 grant, so about €17,200 left to pay.
How this is worked out
The grant is SEAI's fixed amount for your house type. The wall area is the median outside wall on the BER register for homes of your type built before 2011, or the smaller or larger quarter if you picked those. The typical job is what grant-funded external insulation typically costs for your house type, scaled to that wall. Your contractor prices your house after a look: it's a guide to plan with, never a quote. SEAI decides every grant.
Why it matters
Two semi-Ds on the same road get the same grant. If one has a bigger gable, a two-storey extension or a bay window, it has more wall, and every extra square metre is paid in full by the owner.
Questions people ask
How much does the external insulation grant pay per square metre?
The external insulation grant is a fixed amount, so what it pays per square metre depends on your wall. On a typical semi-D it's about €66 per m², on a typical mid-terrace about €72 and on a typical detached house about €63. Smaller houses get more per square metre.
Is the external insulation grant paid per square metre?
No. It's a fixed amount by house type. Dividing it by your wall area shows how far it goes.
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Your grant against your walls
Four taps to your grant, your wall and what's left. Then, if you want, one SEAI-registered external insulation contractor who covers your county rings with a price.