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Insulation Grants Ireland 2026

SEAI insulation grants cover attic, cavity wall, internal wall (dry lining) and external wall insulation. For attic and cavity wall insulation, the grant can cover most of the typical cost. Your home must have been built and occupied before 2011, and you need approval before work starts.

  • Attic insulation up to €2,000
  • Cavity wall up to €1,800
  • External wall insulation up to €8,000
  • Higher amounts for some first-time buyers and welfare recipients
Check my grant Get free quotes Call 083 056 8710

Last checked: October 2026. Official source: SEAI Home Energy Grants. Emergency Trade is independent and not part of SEAI or any council. Always confirm details with the official source before applying.

How much are the insulation grants?

InsulationDetachedSemi-d / end terraceMid-terraceApartment
Attic€2,000€1,300*€1,200*€800*
Cavity wall€1,800€1,200*€800*€700
Internal wall (dry lining)€4,500€3,500€2,000€1,500
External wall€8,000€6,000€3,000*€3,000

*Some published sources show slightly higher amounts for these home types. Always confirm the current figure on SEAI's website before you apply.

Enhanced grants: homeowners on certain welfare payments can get up to €2,500 for attic insulation and €2,300 for cavity wall insulation, and some first-time buyers of older homes can get higher attic insulation grants.

SEAI grant calculator

Estimate the grants you could get and what you might pay after grants. Takes under a minute.

Type of home
When was it built and first lived in?
Which upgrades are you interested in?

Estimates only, based on published 2026 grant amounts and typical Dublin prices. Grant amounts and rules can change: confirm on seai.ie before you apply.

Which insulation does my home need?

  • Attic insulation: the cheapest and quickest upgrade, and usually the first to do.
  • Cavity wall insulation: for homes with an empty or part-filled cavity between two layers of brick or block.
  • Internal wall insulation: for solid walls where the outside can't change, common in period homes.
  • External wall insulation: wraps the outside of the house; the biggest improvement for solid or hollow-block walls.

A BER or home energy assessment will tell you which suits your home.

How to apply, step by step

  1. Check your home qualifies: built and occupied before 2011.
  2. Get quotes from SEAI-registered insulation contractors.
  3. Apply online and wait for grant approval.
  4. Have the work done once approved.
  5. Get a post-works BER if required, and submit your paperwork.
  6. Receive the grant, paid after SEAI checks your claim.

What will I actually pay?

InsulationTypical Dublin costGrant (semi-d)
Attic€1,200–€2,500About €1,300
Cavity wall€1,200–€3,000About €1,200
Internal wall€6,000–€18,000€3,500
External wall€18,000–€28,000€6,000

Mistakes to avoid: starting before approval, using an unregistered contractor, and insulating without checking ventilation, which can lead to condensation.

Frequently asked questions

How much is the attic insulation grant in 2026?

Up to €2,000 for a detached house, with lower amounts for other home types, and up to €2,500 for some welfare recipients and first-time buyers.

Can I get grants for more than one type of insulation?

Yes. You can usually claim for attic and wall insulation together.

Does my house qualify?

For insulation grants, the home generally must have been built and occupied before 2011.

Do I need a BER before applying?

Not for most individual insulation grants, but a post-works BER is usually required to claim.

Will insulation cause damp?

Not when installed properly with adequate ventilation. A good contractor will check ventilation as part of the job.

Can landlords claim insulation grants?

Yes, for rental properties that meet the conditions.

Find vetted contractors for this work

By area:

  • North Dublin City: Artane, Cabra, Clontarf, Coolock, Drumcondra, East Wall, Fairview, Glasnevin, Phibsborough, Stoneybatter
  • Dublin North Coast: Raheny, Baldoyle, Donaghmede, Howth, Sutton, Portmarnock, Malahide
  • South West Dublin: Tallaght, Citywest, Firhouse, Knocklyon, Ballyboden, Templeogue, Walkinstown, Kimmage, Rathfarnham, Terenure
  • Stillorgan, Sandyford & Foxrock: Mount Merrion, Stillorgan, Goatstown, Sandyford, Cherrywood, Cabinteely, Foxrock, Deansgrange
  • West Dublin & Leixlip: Chapelizod, Palmerstown, Lucan, Leixlip, Adamstown, Clondalkin
  • Dún Laoghaire & South Coast: Blackrock, Booterstown, Monkstown, Dún Laoghaire, Dalkey, Killiney
  • Dublin 15: Blanchardstown, Castleknock, Mulhuddart, Ongar, Hansfield, Ashtown
  • North County Dublin: Swords, Lusk, Rush, Skerries
  • South Dublin City: Ballsbridge, Donnybrook, Sandymount, Ranelagh, Rathgar, Harold's Cross, Churchtown, Dundrum

Get free quotes from vetted contractors

Tell us what you're planning, where the property is and when you'd like to start. We'll match you with a vetted local contractor. For anything urgent, call 083 056 8710.

Which upgrades are you interested in? (tick all that apply)

Please tick at least one upgrade.

When was the home built and first lived in?

Please choose an option.

Current BER, if you know it

Please tell us where the property is.

When are you hoping to start?

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Do you own the property?

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Urgent? Call 083 056 8710, the fastest way to reach us.

Have you applied for an SEAI grant? (optional)

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Please tick to agree so we can pass your details to a contractor.

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For anything urgent, call 083 056 8710.