Windows and doors grants explained
The SEAI windows and doors grant pays up to €4,000 towards new windows and €800 for each external door. You don’t need to sign up for a full home retrofit.
How much is the windows and doors grant?
SEAI pays a fixed grant towards new windows and external doors in homes built and lived in before 2011. For windows it is €1,500 for an apartment, €1,800 for a mid-terrace house, €3,000 for a semi-detached or end of terrace house and €4,000 for a detached house. External doors get €800 each, for up to two doors.
The new windows and doors must reach a U-value of 1.4 W/m²K or better, and your home must reach a Heat Loss Indicator (HLI) of 2.3 or better once the work is done. Energlaze is a registered SEAI installer, so we check all of this with you before anything is ordered.
Grant amounts are SEAI’s published rates, and we check them with SEAI before every application. For insulation, heat pumps and solar, see our SEAI grants page.
Check where you stand in under a minute
Answer five quick questions to see whether your home is likely to qualify and roughly what the grant could be.
1. Was your home built and lived in before 2011?
2. Are you replacing single glazed or older double glazed windows or doors?
3. Are your attic and walls already insulated, for example with an SEAI grant?
4. What type of home is it?
5. How many external doors are you replacing?
Possible grant: €0
Answer the questions above to see where you stand.
A guide only. Grant amounts are SEAI's published rates for the windows and doors grant: windows €1,500 to €4,000 by home type, external doors €800 each, up to two. New windows and doors must reach a U-value of 1.4 W/m²K or better, and your home must reach a Heat Loss Indicator of 2.3 or better after the works. A BER assessor confirms this.
The three rules your home needs to meet
- Your home was built and lived in before 2011. Extensions built before 1 January 2011 count too.
- You are replacing single glazed or older double glazed windows or doors.
- After the works your home reaches an HLI of 2.3 or better, confirmed by a BER assessor.
The HLI rule is the one most people haven’t heard of. It measures how quickly heat escapes from the whole house, not just the windows. If your attic and walls are already insulated, new windows and doors on their own usually get you there. If they aren’t, you may need insulation first, and that has its own SEAI grants.
We handle the paperwork for you
You don’t need to work out the grant rules alone. We arrange a BER assessment before the works to see where your home stands, then quote for windows and doors that meet the 1.4 W/m²K standard. Once the grant is approved, our own teams fit everything, and the BER assessor confirms the result afterwards.
If your home needs more than windows and doors to reach the HLI target, we can look at a full retrofit through the SEAI One Stop Shop instead, which covers insulation, heating and windows in one project.
FAQ about the windows and doors grant
If you can’t find the answer please contact us here or email us at info@energlaze.ie
How much is the SEAI windows and doors grant?
It depends on your home type: €1,500 for an apartment, €1,800 for a mid-terrace, €3,000 for a semi-detached or end of terrace house and €4,000 for a detached house. External doors get €800 each, up to two.
Do I need to insulate my home to claim the windows and doors grant?
Not always. Your home must reach a Heat Loss Indicator of 2.3 or better after the works. If your attic and walls are already insulated, new windows and doors alone usually do it. Energlaze can arrange a BER assessment to check before you commit.
What U-value do new windows need for the grant?
New windows and doors must have a U-value of 1.4 W/m²K or better. Every window and door Energlaze quotes for the grant meets that standard.
Can I get the windows and doors grant if my home was built after 2011?
No. The grant is for homes built and lived in before 2011. Extensions built before 1 January 2011 also qualify.
Can I replace my windows in stages and claim each time?
No. SEAI pays the windows grant once per home, and you still need to meet the HLI requirement after the works.
Can I combine the windows grant with other SEAI grants?
Yes. You can claim separate SEAI grants for attic and wall insulation, and if you want a deeper upgrade, the One Stop Shop covers windows, insulation and heating together.
Find out what grant your home could get
Book a free consultation and we will talk you through the grant, the HLI rule and the right windows and doors for your home.