Energlaze OSS is ready to claim the Grant for you
Tackle high energy costs with our new Energlaze Windows and Doors Grant and improve the comfort of your home.
Opening March 2026
Reduce your energy bills, improve comfort, and upgrade your home with the new windows and doors grant.
Rising energy costs and heat loss can make homes uncomfortable and expensive to run. A new government grant launching in March 2026 is designed to help homeowners and property owners upgrade to energy-efficient windows and doors, improving comfort while reducing energy bills. Applications for this grant will open on Monday, 2nd March 2026.
By registering with Energlaze, customers can prepare in advance, confirm eligibility, and receive expert guidance to ensure they are ready to apply as soon as the scheme opens.
Who Can Apply for the Grant
The grant is available to a wide range of property owners, including homeowners, landlords, holiday home owners, companies and owner management companies, registered charities, and Approved Housing Bodies. To qualify, the property must have a valid MPRN and must have been built and occupied prior to 2011. Applicants may apply for support for windows, doors, or both as part of the same scheme.
Windows & Doors Grant Eligibility
To qualify for the windows and external doors grants, existing inefficient windows or doors—such as single-glazed or older double-glazed units—must be replaced with new energy-efficient windows or external doors achieving a U-value of 1.4 W/m²K or better.
Following the upgrade, the home must achieve a ‘Good’ or ‘Very Good’ Heat Loss Indicator (HLI) on the Building Energy Rating (BER), which means an HLI of 2.3 W/m²K or lower. In many cases, upgrading windows and/or doors alone will be sufficient to meet this requirement; however, some homes may need additional measures such as attic or wall insulation to reach the required standard.
These additional upgrades are supported under separate grant schemes. Where there is any uncertainty about meeting the HLI threshold, it is strongly recommended to consult a BER Assessor before works begin to confirm grant eligibility.
How will I know if my home meets the required 'Good' or 'Very Good' standard?
Check your existing BER to see if your attic and wall insulation is ‘Good’ or ‘Very Good’. You will need your MPRN to access your BER.
If you’ve already had both attic and wall insulation done with SEAI grants, then you’re all set, we can confirm this on our system.
If you’ve had only one, or neither, you might still need some insulation to meet the standard. A pre-BER assessment is the easiest way to find out. Here at Energlaze we will arrange your BER assessment. Our assessor will advise whether attic and/or wall insulation is required before you can qualify for the windows and doors grant. For convenience and better value, many homeowners choose our combined pre- and post-works BER service.
What steps are involved in getting my grant?
Choose Energlaze as your One Stop Shop and enjoy a fully managed, stress-free upgrade experience. Energlaze will apply for the grant on your behalf, manage every stage of the process from assessment and paperwork to installation and completion, and ensure all works meet grant requirements.
With the One Stop Shop approach, your grant is deducted upfront from the total cost, so you benefit immediately with no waiting for reimbursement and no administrative burden. Energlaze takes care of everything, allowing you to upgrade your windows and doors with confidence and ease.
Energlaze are experts in all things glazing with a proven track record all over Ireland.
Energlaze Home Energy Upgrades has improved the warmth and comfort of homes all over Ireland. The SEAI do not offer grants for glazing upgrades or new windows unless they are part off a full retrofit using the SEAI One Stop Shop scheme — Energlaze is a registered SEAI installer. Book a free consultation today and get expert advice and a free no-obligation quotation.
If you can’t find the answer please contact us here or email us at info@energlaze.ie
How will I know if I need to insulate my home to claim the windows / doors grant?
A BER assessor will be able to advise you by either checking your existing BER or by carrying out a BER assessment before you apply for the window grant. This is advisable to avoid the risk of your home not meeting the required standard after works and your grant being rejected.
The examples below will help you check whether you need extra insulation. If your BER Advisory Report shows that your roof and walls are Good, or if your Heat Loss Indicator (HLI) is below 2.3 (as shown in the examples), then you already meet the requirements.
Can I get a grant for windows / doors already installed?
No. Grants cannot be backdated.
Can I get a grant to install new windows in my extension?
Yes, you can claim a grant for upgrades done on the original part of the house or for any extensions built before 1st January 2011. Extensions built after 1st Jan 2011 are not eligible.
Can I replace my windows in stages and get a grant each time?
No. SEAI only offers a once-off grant for windows and you must still meet the after-works Heat Loss Indicator (HLI) requirement.
What is a U-value?
The U-value indicates how well a wall, window, or roof, prevents heat loss. A lower U-value indicates better insulation.
What is the heat loss indicator (HLI)?
The Heat Loss Indicator measures how quickly heat escapes from your home. A lower number indicates a warmer, more energy efficient home.