A brand-new standalone windows and doors grant launched in Ireland in March 2026 — for the first time, Irish homeowners can claim SEAI support for energy-efficient windows and doors without needing to carry out a full deep retrofit. The maximum grant is €5,600 (€4,000 for windows + €1,600 for two external doors) on a detached home.
Previously, window and door grants were only accessible through the One Stop Shop deep retrofit route. The 2026 change opens up support to millions of additional homeowners.
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Windows Grant Amounts by Property Type (2026)
| Property type | Windows grant |
|---|---|
| Detached house | €4,000 |
| Semi-detached / end-terrace | €3,000 |
| Mid-terrace | €1,800 |
| Apartment | €1,500 |
Doors Grant (2026)
The SEAI doors grant is €800 per external door, for a maximum of two external doors — giving a maximum doors grant of €1,600.
Combined with the windows grant, a detached homeowner can receive up to €5,600 in total for windows and doors.
Do I Qualify for the Windows and Doors Grant?
To be eligible for the SEAI windows and doors grant in 2026 your property must:
- Be in Ireland
- Have been built and occupied before 2011 (note: same cut-off as insulation grants)
- Meet a minimum fabric performance standard — either a Heat Loss Indicator of 2.3 or better, OR have attic and walls rated “Good” or “Very Good” on your BER Advisory Report
The fabric performance standard is important: it means your home needs to have a reasonable level of insulation already in place to qualify. For many older homes, this means completing attic and wall insulation first. Both have their own SEAI grants (up to €2,000 for attic, up to €1,800 for cavity wall), so this can be done cost-effectively as a first step.
Why Does SEAI Require Insulation Before Windows?
Windows and doors are most effective when the rest of the building fabric — walls and roof — is already well insulated. Installing expensive triple-glazed windows in a home with poor attic insulation delivers far less benefit than if the attic is done first. SEAI’s fabric performance standard ensures the grant goes toward upgrades that will make a meaningful difference to energy use.
How to Apply for the Windows and Doors Grant
- Check your BER Advisory Report to confirm your attic and walls meet the required standard — or get a BER assessment (SEAI provides a €350 grant toward this)
- Get quotes from at least two SEAI-registered window and door suppliers
- Apply to SEAI at seai.ie before any work begins
- Have the windows and doors installed by your registered contractor
- Submit your grant claim
- Receive payment — typically 4–8 weeks
Can I Combine the Windows Grant with Other SEAI Grants?
Yes. The windows and doors grant can be combined with insulation grants, heat pump grants and other individual SEAI grants in the same application year. If you are planning a comprehensive upgrade, the One Stop Shop route also includes windows and doors in the deep retrofit package (up to €50,000 total).
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Frequently Asked Questions
When did the SEAI windows and doors grant start?
The standalone SEAI windows and doors grant launched on 2 March 2026. Before this date, window and door grants were only available as part of the One Stop Shop deep retrofit programme. From March 2026, homeowners can apply for windows and doors independently as a standalone individual grant.
How much is the SEAI windows grant in 2026?
The SEAI windows grant in 2026 is €4,000 for a detached house, €3,000 for a semi-detached or end-terrace house, €1,800 for a mid-terrace and €1,500 for an apartment. The doors grant is €800 per external door, up to two doors (maximum €1,600).
Do I need to insulate my home before I can get the windows grant?
Your home must meet a minimum fabric performance standard — either a Heat Loss Indicator of 2.3 or better, or attic and walls rated “Good” or “Very Good” on your BER Advisory Report. For many older homes, this means insulation work needs to be completed first. SEAI insulation grants (up to €2,000 for attic, €1,800 for cavity wall) can significantly reduce the cost of meeting this requirement.
Does the windows grant cover all windows in my home?
The grant covers the installation of energy-efficient replacement windows (typically triple-glazed) throughout the property. The grant amount is fixed by property type, not by the number of windows — so a detached home gets €4,000 regardless of whether it has 6 or 14 windows. Your contractor will provide a quote for the full replacement.
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