Apartment
€3,100
combined maximum
Windows
€1,500
Doors
€1,600
Pre-2011 apartments with adequate insulation. Up to two external doors.
Updated 15 May 2026 · 2026 grant figures verified against seai.ie
Up to €4,000 for windows + €1,600 for doors on detached homes. Owen confirms eligibility on the survey before quoting, so you know exactly what you can claim before applying.
Call 01 822 898260 seconds · Owen responds within 24 hours
SEAI Registered
Government-registered grant contractor since 2018
A-Rated Energy
BFRC A++ certified glazing as standard
PAS24 Secure
Multi-point locks · Garda-recognised security spec
23 Years · 5,247 Homes
Family-owned since 2003 · Dublin, Kildare, Wicklow
The SEAI grants for windows and doors are a pair of government-funded grants under the Better Energy Homes scheme that help Irish homeowners replace single-glazed or inefficient windows and doors with high-performance A-rated alternatives. Available to homes built before 2011, the windows grant pays up to €4,000 and the door grant pays €800 per external door (maximum two doors) — combined maximum of €5,600 for a detached home in 2026.
Since 2024 the grant is available as a standalone measure — no One Stop Shop bundling required. You apply yourself via the SEAI online portal at seai.ie, the work is done by an SEAI-registered contractor (like us), and the grant is paid directly into your bank account after a post-works BER.
Airtight is an SEAI-registered installer for Dublin, Kildare and Wicklow. We’re the contractor that makes the install qualify; you handle the application and receive payment. Our role is to confirm eligibility on the survey, fit grant-compliant A-rated products, arrange the post-works BER, and provide every document SEAI asks for.
Max grant
Per home on a detached property in 2026
Build year
Home must be built and occupied before 2011
U-value (W/m²K)
Required spec — all our windows hit it
Standalone since
No One Stop Shop required — apply directly
The amount depends on your home type. Doors are €800 each, maximum two per home (€1,600). Window grants range from €1,500 to €4,000.
Apartment
combined maximum
Windows
€1,500
Doors
€1,600
Pre-2011 apartments with adequate insulation. Up to two external doors.
Mid-Terrace
combined maximum
Windows
€1,600
Doors
€1,600
Pre-2011 terraced homes — Victorian terraces, 1950s rows, urban infill.
Semi-Detached
combined maximum
Windows
€3,000
Doors
€1,600
Most common Dublin housing type. Includes end-of-terrace homes.
Detached
combined maximum
Windows
€4,000
Doors
€1,600
Maximum grant — typically rural sites and larger suburban detached homes.
Grant amounts are maximums and subject to SEAI confirmation. Figures correct as of May 2026 per seai.ie.
All four must be true. If you’re unsure on any, walk through our deeper 5-minute eligibility check — it covers pensioners, rentals, listed buildings and other edge cases.
Your home must have been built and occupied before 1 January 2011. Homes from 2011 onward were constructed to higher energy standards and don’t qualify.
Attic insulation of 300 mm (or equivalent) and reasonable wall insulation. If you don’t have it, insulation has its own SEAI grant — do that first.
You’re upgrading existing single-glazed or first-generation double-glazed windows / doors. New-build openings don’t qualify.
New products must hit U-value ≤1.4 W/m²K. Every window and door we install qualifies as standard. Spec is in writing on every quote.
Realistic timeline: 3–4 months end-to-end. Click any step for detail. Read the full process guide for what to do, what we do, and what trips most homeowners up.
Search the contractor on seai.ie before signing. The grant only pays out if the work is done by a registered installer. Airtight is registered — our number is on every quote.
You apply yourself via the SEAI online portal — contractors cannot submit on your behalf. Application is free, takes 15–30 minutes, asks for home details, BER, contractor reference, bank account.
SEAI emails a formal grant offer in 2–4 weeks. Starting any installation before this offer arrives forfeits the grant entirely — no exceptions. This is the #1 mistake we see.
Once your offer is in, give us the go-ahead. A typical 3-bed semi full-house install takes 3 days on site. Installed U-values must match the quote for the grant to pay.
A registered BER assessor visits after install and issues an updated BER cert. Cost €150–€200, paid by you, reimbursable as part of the grant. We can recommend assessors.
Upload our final invoice, proof of payment, and the post-works BER to your SEAI portal account. SEAI reviews the claim — 5–10% of homes get a physical inspection before payment.
Once approved, SEAI transfers the grant directly to your bank account, typically within 4–6 weeks of submitting the final claim. End-to-end: 3–4 months from first quote.
Not every window installer is SEAI registered, and fewer still understand the grant process from the inside. Here’s what makes working with Airtight different.
Our SEAI registration number is on every quote. You can verify it on seai.ie before signing anything.
Every window and door we install hits U-value 1.0–1.4 W/m²K — well inside SEAI thresholds. Spec is documented in writing.
Family-owned since 2003. Over 5,247 homes completed across Dublin, Kildare and Wicklow. SEAI inspectors know our work.
No call centres. Owen confirms eligibility on the survey, quotes within 24 hours, and books installation around the SEAI offer timeline.
Our window & door systems
5.0 ★ from verified Google reviews · 23 years installing across Ireland
Local installer with a 23-year track record across 26 towns and suburbs. Owen responds within 24 hours and arranges free surveys for the earliest available appointment.
Tallaght, Lucan, Clondalkin and the M50 corridor — free survey, booked for the earliest available slot.
Bray, Greystones and the East Wicklow coast — coastal-spec uPVC available.
Naas, Newbridge, Maynooth — North Kildare commuter-belt specialists.
Don’t see your area? Give us a call — we cover most of Dublin, Kildare and Wicklow.
The questions Dublin, Kildare and Wicklow homeowners ask us most about the SEAI grant. Owen confirms eligibility on every survey before quoting.
The SEAI window grant pays up to €4,000 for a detached home, €3,000 for semi-detached and end-of-terrace, €1,600 for mid-terrace, and €1,500 for apartments. The SEAI door grant pays €800 per external door (maximum two doors), an additional €1,600 — bringing the combined maximum from both SEAI grants for windows and doors to €5,600 for a detached home.
Yes. The SEAI grants for windows and doors remain open in 2026 under the Better Energy Homes scheme, with the same grant levels as 2025 (€1,500–€4,000 for windows, €800 per door up to two doors). Since 2024 the grants are available as standalone measures — you do not need a One Stop Shop or bundled package. Apply directly at seai.ie using an SEAI-registered installer like Airtight.
You apply yourself via the SEAI online portal at seai.ie. Contractors cannot apply on your behalf. The grant is paid directly into your bank account after installation and post-works BER. Airtight provides the documentation you need (SEAI registration number, U-value spec, invoice, BER assessor recommendation) but the application itself is yours.
If your home was built and occupied before 2011, has adequate attic and wall insulation, and you’re replacing inefficient existing windows or doors, you almost certainly qualify. Use our 5-minute eligibility check at /seai-grant-eligibility/ to confirm before applying.
Yes. The insulation just needs to be in place — it doesn’t have to be done at the same time as the windows or through a previous SEAI grant. Already-insulated homes qualify on the same terms as those upgrading insulation now.
No. Since 2024 the windows and doors grant is available as a standalone measure. You don’t need a One Stop Shop and don’t need to bundle it with other upgrades. You can apply directly via seai.ie and use a single registered contractor like Airtight.
New windows must achieve a U-value of 1.4 W/m²K or lower. Modern A-rated uPVC double glazing hits ~1.2–1.4 W/m²K as standard. Triple glazing hits 0.8–1.0. Every window we install meets or exceeds this spec — the U-value is stated in writing on every quote.
Realistic end-to-end timeline: 3–4 months from first quote to grant payment. Breakdown: quotes 1–2 weeks, SEAI application 30 minutes, wait for grant offer 2–4 weeks, manufacturing 4–6 weeks, install 1–3 days, post-works BER 1 week, SEAI payment review 4–6 weeks.
Possibly under the SEAI Warmer Homes Scheme, which covers 100% of the upgrade cost for homeowners on qualifying social-welfare payments (including State Pension combined with Fuel Allowance). Warmer Homes also covers insulation. If you receive Fuel Allowance, contact SEAI directly to check eligibility before applying for the standalone grant.
Yes. The grant is nationwide. Airtight covers Dublin, County Wicklow and County Kildare — we’re an SEAI-registered installer for all three counties.
Two deeper guides for homeowners thinking about the SEAI grant, plus our most-read installer comparison.
SEAI grantStep-by-step 2026 guide to applying for the SEAI windows & doors grant — who applies (you, not the contractor), the SEAI online portal, post-works BER, and the realistic 3–4 month timeline from quote to payment.
Read article
SEAI grantA 5-question eligibility check for the 2026 SEAI windows & doors grant — pre-2011 home, insulation, U-value, plus the special cases (pensioners, rentals, listed buildings) the official SEAI page doesn’t spell out.
Read articleBuyer’s guideSide-by-side comparison of uPVC and composite doors for Irish homes — real prices (€900–€2,400 + VAT), U-values, security ratings, lifespans, and exactly which one suits the front and back doors of a typical Dublin semi.
Read articleOur certified installer will visit your home, measure precisely, explain your options, and provide a detailed quote-all in about 30 minutes. No pressure, no obligation, no pushy sales tactics. Just honest advice from Dublin's most trusted window experts.
Schedule Your Free Consultation© Copyright 2026 Airtight Window System Ltd. | Privacy Policy | Cookie settings | Terms & Conditions | Powered by Webjuice
Registered in Ireland No: 374112 | VAT No: IE 6394112P