SEAI Grant for Windows & Doors Ireland

What is the SEAI Window & Door Grant?

QUICK ANSWER

The SEAI window and door grant is a government-funded scheme that helps Irish homeowners replace single-glazed or inefficient windows and doors with high-performance alternatives. Available to homes built before 2011, it provides up to €4,000 for windows and €1,600 for external doors — paid directly after installation by an SEAI registered contractor.

SEAI — the Sustainable Energy Authority of Ireland — runs this scheme as part of Ireland’s broader home energy upgrade programme. The grant was updated in 2024 to become standalone, meaning you no longer need to bundle it with other upgrade works through a One Stop Shop. That’s a significant change. It makes the process much simpler for most homeowners.

The grant is paid after the work is completed and verified, so there’s no upfront application fee or complicated pre-approval process. You choose your windows, choose an SEAI registered contractor (like Airtight), and SEAI pays the grant directly to reduce your final bill.

How Much is the SEAI Grant for Windows?

The amount you can claim depends on your property type. Here’s the full breakdown for windows — plus what’s available for external doors on top of that.

Property Type	Window Grant	Door Grant	Combined Max
Apartment	€1,500	€800	€2,300
Mid-Terrace	€3,000	€1,200	€4,200
Semi-Detached	€3,000	€1,600	€4,600
Detached	€4,000	€1,600	€5,600

Grant amounts shown are maximums and subject to SEAI confirmation. Figures correct as of 2025.

Can I combine the window grant with other SEAI grants?

Yes. The window and door grant can be combined with other SEAI home energy upgrade grants — such as insulation, heat pump, or solar — as part of a broader retrofit project. Combining measures can significantly increase your total grant value. Ask us about this when you request a quote.

Am I Eligible for the SEAI Window Grant?

The eligibility rules are pretty straightforward. You’ll need to tick all four boxes below to qualify. If you’re unsure about any of them, contact us – we check this for every customer before submitting anything.

Your home was built and occupied before 2011. Newly built homes don't qualify. The grant is specifically for older housing stock that was built to lower energy standards.

Your home has a Heat Loss Indicator (HLI) of 2.3 or above. This is a measure of how much heat your home loses. Homes with an HLI below 2.3 are already considered reasonably efficient and don't qualify. Your BER certificate will show this figure.

Attic or wall insulation is already in place (or installed at the same time). SEAI requires a minimum level of fabric insulation before approving the window grant. If your attic or walls aren't insulated, we can arrange this alongside the window work.

You use an SEAI registered contractor. Only contractors registered with SEAI can submit grant applications on your behalf. Airtight are fully registered — you don't need to find anyone else.

What if I'm not sure about my HLI?

If you have an existing BER certificate, it will include your Heat Loss Indicator. If you don’t have one, we can arrange a BER assessment as part of the process. In most pre-2011 homes with original windows, the HLI exceeds 2.3 — but it’s worth confirming before we proceed.

Why Choose Airtight as Your SEAI Registered Contractor?

There are plenty of window companies in Ireland. Not all of them are registered with SEAI, and fewer still understand the grant process inside out. Here’s what makes working with Airtight different.

Fully SEAI Registered

We're on the SEAI registered contractor list. Your grant application is valid the moment you sign with us.

We Handle the Paperwork

Grant forms, BER documentation, SEAI submissions — we manage the entire application so you don't have to.

Grant-Compliant Products

Every window and door we install meets or exceeds the SEAI U-value requirements of 1.4 W/m²K.

Local to You

Based in Dublin, serving Dublin, Wicklow, and Kildare. Fast site visits and no long waits for installation dates.

15+ Years Installing Windows

We've been fitting windows and doors in Irish homes since before the grant even existed. We know what we're doing.

Free Quote in 24 Hours

Request a quote today and we'll have a detailed, no-obligation breakdown back to you within 24 hours.

How to Apply for the SEAI Window Grant — Step by Step

The process is more straightforward than most people expect, especially when you’re working with an experienced registered contractor. Here’s exactly how it works.

Check your BER rating and HLI

We review your existing BER certificate (or arrange one) to confirm your home is eligible and your HLI qualifies.

Get a free quote from Airtight

We survey your home, specify the right windows and doors, and provide a full written quote including the grant deduction upfront.

We submit your SEAI application

Once you approve the quote, we register your project with SEAI and handle all the grant administration on your behalf.

Installation

Our certified team installs your new windows and doors to SEAI specification, typically completed within a single day for most homes.

SEAI inspects and pays the grant

SEAI may carry out a post-installation inspection. Once approved, the grant is paid — directly reducing what you owe us, or paid to you within 4–6 weeks.

SEAI Window & Door Grant — Serving Dublin, Wicklow & Kildare

Airtight are based in Dublin and cover the Greater Dublin Area plus counties Wicklow and Kildare. If you’re in any of the areas below, we can visit your home, confirm eligibility, and manage your full SEAI grant application from start to finish.

Swords

Balbriggan

Dún Laoghaire

Malahide

Skerries

Bray

Wicklow

Greystones

Delgany

Arklow

Blessington

Naas

Newbridge

Celbridge

Leixlip

Maynooth

Athy

Kildare

Ballyfermot

Kylemore

Ballymount

Clondalkin

Lucan

Palmerstown

Chapelizod

Rathcoole

Saggart

Kingswood

SEAI grant for windows in Dublin

Dublin homeowners — particularly those in pre-war terraced housing in areas like Ranelagh, Rathmines, Glasnevin, and Clontarf — are ideal candidates. Older sash windows in these homes typically have very high heat loss, making the grant both easy to qualify for and highly impactful in terms of energy savings.

SEAI grant for windows in Wicklow & Kildare

County homeowners often have larger detached or semi-detached properties, meaning they can access the higher window grant tiers (up to €4,000) and typically benefit most from the combined window and door package.

Frequently Asked Questions About SEAI Grant Service Windows and Doors

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How much is the SEAI grant for windows in Ireland?

The SEAI window grant provides up to €4,000 for a detached home, €3,000 for semi-detached and mid-terrace properties, and €1,500 for apartments. An additional grant of up to €1,600 is available for external doors — bringing the combined maximum to €5,600 for detached homes.

Am I eligible for the SEAI window grant?

To qualify, your home must have been built and occupied before 2011, have a Heat Loss Indicator (HLI) of 2.3 or higher, and have attic or wall insulation in place (or installed at the same time as your windows). You also need to use an SEAI registered contractor like Airtight.

Does my home need to be built before 2011 for the SEAI grant?

Yes. The SEAI window and door grant is only available to homes that were built and occupied before 2011. Homes built from 2011 onwards were constructed to higher energy standards and don’t qualify for this particular measure.

Can I get the SEAI grant if I've already had insulation done?

Absolutely. If your attic or wall insulation has already been completed — whether through SEAI previously or through other works — you can still qualify for the window and door grant. The insulation just needs to be in place; it doesn’t need to be done at the same time.

Do I need a One Stop Shop for the new window grant?

No. As of 2024, the SEAI window and door grant is available as a standalone measure. You don’t need to go through a One Stop Shop or bundle it with a heat pump, solar, or other measures. You simply choose a registered contractor (like Airtight), get your windows installed, and claim the grant.

How long does it take to get the SEAI grant paid?

Once installation is complete and Airtight submits the required documentation to SEAI, the grant is typically processed and paid within 4–6 weeks. SEAI may carry out a post-installation inspection before releasing payment. We manage the full submission process on your behalf.

What U-value do my new windows need to meet for the SEAI grant?

New windows must achieve a U-value of 1.4 W/m²K or lower to qualify for the SEAI grant. All windows and doors supplied and installed by Airtight meet or exceed this specification as standard — this isn’t something you need to verify separately.

Can I get the SEAI grant in Wicklow or Kildare?

Yes. The SEAI window and door grant is available nationwide to all eligible homes in Ireland. Airtight are SEAI registered contractors covering Dublin, Wicklow, and Kildare. If your home qualifies and you’re in one of these counties, we can manage your full application and installation.

SEAI Grant for Windows & Doors in Ireland — Up to €5,600 Available