SEAI Grants 2026: Every Home Energy Grant in Ireland

SEAI (the Sustainable Energy Authority of Ireland) offers grants for solar panels (€1,800), heat pumps (€12,500), attic insulation (€2,000), wall insulation (up to €8,000), windows (up to €4,000), external doors (up to €1,600), heating controls (€700), and solar water heating (€1,200). All amounts below were verified against seai.ie on 2 June 2026.

All SEAI Grants at a Glance

This page covers SEAI grants. For the full picture including EV grants, the vacant property grant, local authority schemes and solar export payments, see our complete energy grants list.

Two further SEAI supports sit alongside the individual grants:

• Warmer Homes Scheme — fully funded energy upgrades (no cost to you) for homeowners receiving certain social welfare payments. See our full guide: Warmer Homes Scheme — who qualifies and what's covered.
• One Stop Shop service — an SEAI-registered company manages a complete home energy upgrade (multiple measures at once, to a minimum B BER rating), applies for all grants on your behalf, and deducts the grant value upfront from your bill. See our full guide: how the One Stop Shop works and its grant values.

Solar Electricity Grant — €1,800

The Solar Electricity Grant pays up to €1,800 towards solar PV panels on your roof. A typical system pays for itself in 7–10 years at current electricity prices. Your home must have been built and occupied before 31 December 2020, and the installer must be on SEAI’s registered list.

We cover this grant in full detail — tier maths, application steps, paperwork, the planned step-down — in our SEAI Solar Grant guide. If you want to know what a system costs after the grant, see Solar Panels Cost Ireland.

Heat Pump Grant — up to €12,500

The largest single SEAI grant. It covers €6,500 for the heat pump unit, €2,000 for a heating system upgrade, and a €4,000 renewable heat bonus paid after 12 months of verified operation. Air-to-water and ground-source systems qualify for the full amount; air-to-air systems qualify for less.

Full breakdown, eligibility and application steps: Heat Pump Grant Ireland guide. If you are weighing solar against a heat pump — or considering both — see can you claim both grants? (short answer: yes).

Wall Insulation Grants — up to €8,000

There are three types of wall insulation, and the grant amount depends on both the insulation type and your house type. Your home must have been built and occupied before 31 December 2010 to qualify for insulation grants. All external walls must be insulated — partial insulation of one or two walls is not eligible.

Homeowners on qualifying welfare payments receive a higher cavity wall grant (€2,300 for a detached house, €1,700 semi-detached, €1,100 mid-terrace, €900 apartment). And if you previously claimed a wall insulation grant, SEAI now allows a second wall insulation measure — for example, upgrading from cavity insulation to external wrap. Source: SEAI wall insulation grant page. For the full breakdown of every insulation grant including welfare rates and the second-measure rules, see our Insulation Grants Ireland guide.

Attic Insulation Grant — €2,000

A house loses an average of 20–30% of its heat through the roof, which is why SEAI describes attic insulation as often the most cost-effective upgrade you can make. The standard grant is up to €2,000. First-time buyers and homeowners on qualifying welfare payments can receive up to €2,500. The same pre-2011 build rule applies as for wall insulation.

Windows and Doors Grant — up to €4,000 + €1,600 (New)

This is the newest SEAI grant. It pays towards replacing single or double glazed windows with high-performance glazing (U-value 1.4 W/m²K or better), and towards replacing inefficient external doors.

The doors grant is €800 per external door, up to a maximum of two doors (€1,600). You can apply for windows, doors, or both. The catch: your home must already have good attic and wall insulation (rated “Good” or “Very Good” on your BER Advisory Report), must have been built before 2011, and the grant cannot be backdated for windows already installed. Full eligibility rules, the insulation-first sequence, and how to apply: our windows & doors grant guide.

Heating Controls Grant — €700

Up to €700 towards smart heating controls — zoned heating, smart thermostats, and hot water scheduling that matches your heating to how you actually use your home. This is the smallest grant but also one of the cheapest upgrades, and it is frequently combined with a heat pump or insulation application.

Solar Water Heating Grant — €1,200

Up to €1,200 towards a solar thermal system — panels that heat your hot water directly rather than generating electricity. Note this is a different technology from solar PV. If you are choosing between them, solar PV (the €1,800 grant) is the more flexible option for most homes because the electricity it generates can run anything, not just the immersion. See our solar PV cost guide for the comparison.

Which Grants Can Be Combined?

All SEAI individual grants are separate schemes with separate applications. Claiming one does not reduce or block another. The combinations that matter most:

• Solar PV + heat pump — the most valuable pairing: €14,300 combined. Solar generates the daytime electricity the heat pump runs on. Full guide to stacking both.
• Solar PV + 0% VAT — solar panel supply and installation has been zero-rated for VAT since May 2023, on top of the grant. How the VAT saving stacks with the grant.
• Insulation + windows — you need good insulation BEFORE you can claim the windows grant, so the sequence matters: attic and walls first, then windows.
• SEAI grants + Vacant Property Refurbishment Grant — if you are renovating a vacant or derelict property, the €50,000–€70,000 Vacant Property Refurbishment Grant explicitly excludes energy upgrade work so that you can claim SEAI grants for that work on top.
• Renovating a whole house? See our complete guide to home renovation grants — how all four major schemes combine, with a worked example worth €95,300.
• SEAI grants + Housing Adaptation Grant — the means-tested Housing Adaptation Grant (up to €40,000 for adapting a home for a person with a disability) is a separate local authority scheme and does not affect SEAI grant eligibility.

How to Apply for SEAI Grants

The process is broadly the same for every individual grant:

1. Check eligibility — build date rules differ by grant (before 2021 for solar PV, before 2011 for insulation, windows and heating measures).
2. Get quotes from SEAI-registered contractors — the contractor must be registered for that specific measure.
3. Apply online at seai.ie before any work starts — grant approval must be in place first. Online applications are typically approved in minutes; you then have 30 days to accept the offer.
4. Complete the works — you have 8 months from the grant offer to finish and claim.
5. Get a post-works BER assessment — required for payment (a €50 BER grant offsets part of the cost).
6. Submit paperwork and get paid — SEAI pays into your bank account, typically within 4–6 weeks.

Alternatively, a One Stop Shop handles all of this for you and deducts the grants from your bill upfront — the trade-off is less control over contractor choice.

Frequently Asked Questions