Check my grant
HomeGrant amountsCostHow to applyRafters and roofsCountiesAbout this siteGet a free quote

SEAI grant · all 26 counties · checked November 2026

Attic insulation grant: up to €2,500

SEAI pays a fixed €2,000 towards attic insulation on a detached house, €1,500 on a semi-D, €1,400 on a mid-terrace and €1,100 on an apartment, and up to €2,500 at the higher rate (Citizens Information). On SEAI's median costs, a semi-D is left with about €601 to pay (SEAI median costs).

For homes built and lived in before 2011. Check your grant in two taps, then send 4 answers and one SEAI-registered insulation contractor who covers your area rings you to look at the attic and price it in writing.

Get a free quoteCheck my grantFree. Your grant in 2 taps, then 4 questions for a price. One SEAI-registered contractor rings you.

Figures checked against SEAI and Citizens Information on 2 November 2026. atticinsulationgrant.ie is not SEAI or a government body and does not award grants.

An attic insulated to SEAI's standard, seen in section A pitched roof over a ceiling. Mineral wool lies between the ceiling joists and a second layer runs across them, about 300 millimetres in all. At each eave a gap is left for air to flow in under the roof. A boarded walkway on raised battens leads from the attic hatch to the water tank, with a clear gap above the insulation. The hatch has insulation fixed on top and a draught strip, and the tank and pipes are lagged. Notes: about 300 mm of mineral wool or about 150 mm of PIR board reaches a U-value of 0.16; a 10 mm gap at the eaves; boards 50 mm clear of the insulation; hatch insulated and draught-stripped; tank and pipes lagged; downlights kept 75 mm clear. In section. Our drawing, not to scale. 123456 1About 300 mm of wool: U-value 0.16210 mm air gap open at the eaves3Walkway boards 50 mm clear4Tank and pipes lagged5Hatch insulated, draught-stripped6Downlights kept 75 mm clear
SEAI's standard for attic (ceiling level) insulation: a U-value of 0.16 W/m²K, which typically takes 300 mm of mineral or glass wool or about 150 mm of PIR board, with the eaves, walkway, hatch, tank and downlight details shown (SEAI DTSS v4.0, clause 6.4).
  • €2,000SEAI's fixed attic grant for a detached house, €2,500 at the higher rate (Citizens Information)
  • €601left to pay on a semi-D: SEAI's median cost of €2,101 less the €1,500 grant (SEAI median costs)
  • 24%of houses built before 2011 have a roof at SEAI's 0.16 U-value on their BER (SEAI BER register)
  • 0.16the U-value SEAI requires: about 300 mm of mineral wool (SEAI technical standard)

FreeNo obligationOne contractor rings you, not fiveSEAI approves the grant before any work

Grant check

Your attic grant and what's left to pay

Two taps: your home, and which rate fits you. The answer is SEAI's fixed grant and its own median cost for the job.

Your home
Which fits you?

Your SEAI attic insulation grant

€1,500

SEAI median cost, Jan to Jun 2026
€2,101
Left to pay at the median
€601

SEAI's fixed grant for a semi-d or end of terrace at the standard rate is €1,500 (Citizens Information, 2 November 2026). SEAI's median cost for attic insulation on a semi-d or end of terrace from January to June 2026 was €2,101. €2,101 less €1,500 leaves about €601. Our sum; your quote can be higher or lower.

Send this for a real price
How this is worked out

The grant is SEAI's fixed amount for that home type and rate, as Citizens Information lists it (Citizens Information, page updated 22 October 2026). The median cost is SEAI's own figure from grant-funded attic jobs completed between January and June 2026 (SEAI median costs); the PDF doesn't say whether VAT is in. Left to pay is the median less the grant, our sum. The home must have been built and lived in before 2011, the contractor must be on SEAI's register, and SEAI must approve the grant before work starts. It's an estimate, never a quote.

The grant

SEAI attic insulation grant by home type

Home typeStandard grantHigher rate*First-time buyer**
Detached house€2,000€2,500€2,500
Semi-D or end of terrace€1,500€1,900€1,900
Mid-terrace€1,400€1,800€1,800
Apartment€1,100€1,400€1,400

* Homeowners on certain welfare payments, and landlords with a tenant on HAP or RAS. ** A second-hand home bought after 1 January 2025 that you live in. Source: Citizens Information, page updated 22 October 2026. SEAI's median costs PDF shows the same standard grants (SEAI median costs).

The grant is a fixed amount, not a share of your price. SEAI approves it before the work and pays it after, once the contractor's paperwork and a new BER are in. The 2026 grant amounts page has the full table and the dates things changed.

The cost

What attic insulation costs after the grant

Home typeSEAI median costStandard grantLeft to pay
Detached house€2,700€2,000€700
Semi-D or end of terrace€2,101€1,500€601
Mid-terrace€2,200€1,400€800
Apartment€1,515€1,100€415

Median cost of grant-funded attic insulation, January to June 2026 (SEAI median costs). Left to pay is the median less the grant: our sum.

One Dublin insulation firm, Isotherm, publishes typical prices a little under SEAI's medians: €1,800 for a semi-D and €2,400 for a detached house, VAT not stated. Get the price in writing with VAT shown. The cost guide has what moves it.

The standard

What a grant-standard attic has in it

SEAI's technical standard sets out what the contractor must do for the grant (SEAI technical standard):

  • Insulation to a U-value of 0.16 W/m²K: typically 300 mm of mineral wool, laid between the joists and then across them, not squashed.
  • A 10 mm gap kept open at the eaves so air can move through the roof, with a soffit vent or eaves tray fitted if there's none.
  • A permanent boarded walkway from the hatch to the water tank, with 50 mm clear between the insulation and the boards.
  • The hatch insulated to the same standard and draught-stripped on every side.
  • The water tank and pipes lagged, cables for the cooker and shower left on top, and downlights kept 75 mm clear.
  • No insulation laid if the roof or pipes are leaking, and woodworm treated first.

Use this as a checklist when the contractor comes to price it. How thick should attic insulation be? explains the 300 mm.

Ireland's roofs

Three in four older roofs are below SEAI's standard

24%of houses built before 2011 have a roof U-value of 0.16 or better on their BER (SEAI BER register)
7%have no roof insulation recorded at all
0.27the median roof U-value: about the level of 150 mm of wool, half SEAI's standard
16%in Dublin, the lowest of the 26 counties; Monaghan is highest at 35%
  • 0.16 or better: SEAI's standard
  • 0.17 to 0.30
  • 0.31 to 1.99: some insulation
  • 2.0 or more: none recorded

From 586,283 BER certificates for houses built before 2011, leaving out the BERs done for grant claims. Each certificate shows the house on the day it was rated, between 2009 and 2026. The U-value bands are ours. The county page has every county.

How it works

From the form to an insulated attic

  1. Check your grant and send 4 answersYour home, when it was built, what's in the attic, and which rate fits you. Only your number is needed.
  2. One contractor rings youOne SEAI-registered insulation contractor who covers your area. They look at the attic and price it in writing.
  3. You apply to SEAIOnline, with your MPRN and the contractor's name. Wait for approval before anything is bought or started.
  4. The work, the BER, the grantAfter the job a BER assessor rates the home, you submit the paperwork and SEAI pays the fixed grant.

Walls and windows

The other SEAI grants on our sister sites

SEAI's individual grants can be combined. For the walls, cavitywallinsulation.ie covers the cavity grant and housewrap.ie external insulation; for windows and doors, windowgrants.ie. If more than 25% of the home's surface is being changed, Building Regulations want a B2 BER or the heating and attic insulation brought up to standard, so the attic often comes first.

Your grant

Your attic grant and a price, in 4 taps

Tap your home, when it was built, what's in the attic now and who you are. Then leave your number and one SEAI-registered insulation contractor who covers your area rings you to look at the attic and price it in writing.

What type of home is it?

SEAI pays a fixed amount for each type of home.

By sending, you agree to Attic Insulation Grant passing your details to one SEAI-registered insulation contractor who covers your area, so they can contact you about the job. atticinsulationgrant.ie is not SEAI or a government body and does not award grants. Privacy notice

FAQ

Questions people ask

How much is the SEAI attic insulation grant?

€2,000 for a detached house, €1,500 for a semi-D or end of terrace, €1,400 for a mid-terrace and €1,100 for an apartment (Citizens Information). The higher rate, for certain welfare recipients, HAP and RAS landlords and first-time buyers, is €2,500, €1,900, €1,800 and €1,400.

How much does attic insulation cost after the grant?

At SEAI's median cost for January to June 2026, about €601 for a semi-D, €700 for a detached house, €800 for a mid-terrace and €415 for an apartment (SEAI median costs). See the cost guide.

Who qualifies for the attic insulation grant?

Homeowners and landlords whose home was built and lived in before 2011 and has an MPRN. The work must be done by a contractor on SEAI's register, and SEAI must approve the grant before you buy materials or start (Citizens Information).

How thick should attic insulation be for the grant?

Thick enough to reach a U-value of 0.16 W/m²K. SEAI says that typically takes 300 mm of mineral or glass wool, or about 150 mm of PIR board (SEAI technical standard). See how thick.

Can I get attic insulation for free?

Yes, if you own and live in a home built before 2006 and get a qualifying payment such as Fuel Allowance: SEAI's Warmer Homes Scheme pays for it in full. The wait is long: about 24 to 26 months from applying to finished work (SEAI). See free attic insulation.

Are you SEAI?

No. Attic Insulation Grant is an introduction service run by Bartlomiej Standa, trading as Elevate Ireland. We pass your request to one SEAI-registered insulation contractor who covers your area. SEAI decides every grant. atticinsulationgrant.ie is not SEAI or a government body and does not award grants.

Where these numbers come from (5 public sources, checked 2 November 2026)
  1. Citizens Information, Better Energy Homes Scheme (page updated 22 October 2026)
  2. SEAI, individual energy upgrades: median costs and fixed grants, January to June 2026 (PDF)
  3. SEAI, Domestic Technical Standards and Specifications v4.0, July 2026, clause 6.4 (PDF)
  4. SEAI, fully funded energy upgrades (Warmer Homes Scheme)
  5. SEAI BER Research Tool, full public file (downloaded 2 November 2026, our sums)
Sources (1)

Prices and facts on this page were checked against these published pages. We are not connected to these businesses.

  1. Isotherm: isotherm.ie