The Irish Government has announced a major new grant scheme aimed at improving home energy efficiency and cutting heating costs. From March 2, 2026, homeowners will be able to apply for up to €4,000 to replace old windows and doors.
What’s changed?
Until now, grants for windows and doors were only available through the costly One Stop Shop scheme, which required full home retrofits and large upfront spending. Under the new scheme, windows and doors can be upgraded as a standalone measure, without carrying out a full renovation. This marks a significant shift and is expected to benefit middle-income households and older homeowners.
Grant amounts
The grant depends on the type of home:
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Detached houses: up to €4,000
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Semi-detached / end-of-terrace: up to €3,000
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Mid-terrace houses: up to €1,800
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Apartments / duplexes: up to €1,500
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External doors: €800 per door, up to two doors (€1,600 total)
Who is eligible?
To qualify, several conditions must be met:
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Home age: Built before 2011 and currently occupied
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Insulation standard: Walls and attic must be properly insulated, or insulation must be carried out alongside the window upgrade
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BER rating: Current rating must be B3 or lower, with the aim of reaching B2 after works
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Approval first: Work must not begin before grant approval
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Approved contractors: All work must be done by SEAI-registered contractors
How to apply
Applications will be handled by the Sustainable Energy Authority of Ireland. The online application portal opens on March 2, 2026. Applicants will need their MPRN number, which can be found on their electricity bill.
The government says the scheme is designed to make energy upgrades more affordable, reduce household energy bills, and help Ireland meet its climate targets—without forcing homeowners into expensive, all-or-nothing renovations.