SEAI Grants Ireland 2026 - Every Grant, Every Amount, How to Apply

SEAI Grants Ireland 2026 - Every Grant Available

Ireland's National Residential Retrofit Plan 2026 is the most generous energy grant programme the State has ever offered.

The Government allocated a record €558 million to residential retrofits for 2026, targeting 70,000 homes. Grant amounts were updated in two phases - February 3 and March 2, 2026 - with heat pump grants nearly doubled, insulation rates increased and a brand new standalone windows and doors grant launched for the first time.

Most Irish homeowners significantly underestimate what they can claim. The grants are fully stackable. There is no overall cap on the number of different measures you can claim. A single home completing insulation, a heat pump, solar PV and new windows can qualify for over €21,500 in individual grants in 2026.

This guide covers every active SEAI grant, who qualifies, the exact amounts by house type and how to apply. For a personalised breakdown based on your property type, BER rating and heating system, start with the SEAI grant calculator before you read on.

Full 2026 Grant Table - Amounts by House Type

All amounts are SEAI Better Energy Homes scheme rates verified against seai.ie. Updated February 3 and March 2, 2026.

Grant	Detached	Semi-D / End-terrace	Mid-terrace	Apartment
Attic insulation (standard)	€2,000	€1,300	€1,200	€800
Attic insulation (enhanced)	€2,500	€2,500	€2,500	€2,500
Cavity wall insulation	€1,800	€1,200	€800	€700
External wall insulation	€8,000	€5,500	€4,500	€3,500
Internal wall insulation	€4,500	€3,500	€3,000	€2,000
Heat pump (fossil fuel home)	€12,500	€12,500	€12,500	€9,500
Heat pump (electric home)	€8,500	€8,500	€8,500	€5,500
Solar PV	€1,800	€1,800	€1,800	€1,800
Solar water heating	€1,200	€1,200	€1,200	€1,200
Windows	€4,000	€3,000	€1,800	€1,500
External doors (per door, max 2)	€800	€800	€800	€800
Heating controls	€700	€700	€700	€700
BER assessment (standard)	€50	€50	€50	€50
BER assessment (welfare rate)	€280	€280	€280	€280
Maximum total (standard)	€38,350	€31,950	€28,350	€23,250

Enhanced attic insulation rate of €2,500 applies to first-time buyers (home purchased on or after 1 January 2025) and homeowners on qualifying welfare payments, from March 2, 2026. Verify all amounts at seai.ie before applying.

Who Qualifies for SEAI Grants?

Most Irish homeowners qualify for at least some grants. There is no income test. You do not need to be on a low income. You do not need a certain BER rating to start.

The main eligibility rules are:

For insulation, heating controls and windows grants: Your home must have been built and occupied before 2011.

For heat pump, solar PV and solar water heating grants: Your home must have been built and occupied before 2021.

You must be the owner-occupier or a landlord applying on behalf of a tenanted property.

Works must not have started. Applying after work has begun permanently disqualifies your grant for that measure, with no exceptions.

Landlords qualify for all the same individual grants as owner-occupiers. From 2026, landlords can also deduct up to €10,000 per property (net of grants) from rental income per year for works carried out between 2026 and 2028, for up to 3 properties.

Each Grant Explained

Attic Insulation Grant

Updated February 3, 2026.

A house loses an average of 20–30% of its heat through the roof. Attic insulation is the first upgrade SEAI recommends for every home. It is the cheapest measure, takes one day to install and is a prerequisite for the windows and doors grant.

SEAI estimates the grant now covers approximately 80% of the total installation cost. The net cost for many homes after the grant is under €500.

Standard rates: Detached €2,000 · Semi-D €1,300 · Mid-terrace €1,200 · Apartment €800.

Enhanced rate (from March 2, 2026): First-time buyers and homeowners on qualifying welfare payments receive a flat €2,500 regardless of property type.

Your home must have been built and occupied before 2011.

For eligibility rules, application steps and how to combine attic insulation with a roof replacement, see our full attic insulation grant Ireland guide.

Cavity Wall Insulation Grant

Updated February 3, 2026.

Cavity wall insulation fills the gap between your inner and outer walls. It is one of the fastest installations - typically completed in a single day with no disruption to the interior.

Rates: Detached €1,800 · Semi-D €1,200 · Mid-terrace €800 · Apartment €700.

Your home must have been built before 2011. A cavity survey is required before works begin to confirm that a cavity exists and is suitable.

Homes built roughly 1940 to 2007 are most likely to have a cavity. Older solid-wall properties and some post-2000 builds may not.

Read the dedicated cavity wall insulation grant Ireland guide for survey requirements, contractor rules and how cavity wall stacks with attic insulation.

External Wall Insulation Grant

For solid-wall properties with no cavity. This wraps insulation board around the outside of the home - the most impactful measure for older Irish homes with poor thermal performance.

Rates: Detached up to €8,000 · Semi-D up to €5,500 · Mid-terrace up to €4,500 · Apartment up to €3,500.

External wall insulation is more disruptive and expensive than cavity wall but also more effective. Typical installation costs €8,000–€20,000 before the grant. The grant covers 25–50% of the cost depending on home size.

Our external wall insulation grant guide covers when external is the right choice over internal dry lining, planning considerations and realistic after-grant costs.

Internal Wall Insulation Grant

Alternative to external wall insulation for solid-wall properties where external work is not possible - planning restrictions, terraced houses with party walls or budget constraints.

Rates: Detached up to €4,500 · Semi-D up to €3,500 · Mid-terrace up to €3,000 · Apartment up to €2,000.

Internal wall insulation (dry lining) reduces internal floor space slightly but can be done room by room over time. It is often paired with attic insulation as part of a phased retrofit before a heat pump application.

Heat Pump Grant

Updated February 3, 2026. This was the biggest change in the 2026 round. The maximum heat pump grant nearly doubled.

A heat pump replaces your oil, gas or solid fuel boiler with a renewable heating system. It is quieter, cheaper to run long term and produces no direct carbon emissions.

The total heat pump grant for homes switching from fossil fuels is €12,500. This is made up of three components:

• Heat pump unit grant: up to €6,500
• Central heating upgrades (radiators, pipework): up to €2,000
• Renewable Heat Bonus (for homes switching from oil, gas or solid fuel): €4,000

Homes switching from electric storage heaters do not receive the Renewable Heat Bonus. Their maximum is €8,500.

Apartments qualify for up to €9,500 regardless of heating type.

Critical condition: Your home must have a Heat Loss Indicator (HLI) of 2.3 or lower to qualify. This measures how fast heat escapes. An uninsulated home almost never meets this threshold. Insulating first brings the HLI down. The correct sequence is insulate first, then apply for a heat pump.

For a 3-bed semi replacing an oil boiler, the after-grant cost is typically €1,500 to €5,000 - roughly the same as fitting a new oil boiler, but with far lower running costs.

See the full heat pump grant Ireland guide for HLI requirements, the Renewable Heat Bonus breakdown and installer selection.

Solar PV Grant

The SEAI solar PV grant is capped at €1,800 for 2026 - confirmed unchanged from 2025. This is the first year since the scheme began that the solar PV grant has not been reduced.

The grant is calculated at €700 per kWp for the first 2kWp installed, then €200 per kWp up to 4kWp. Most homes install 4kWp or more and receive the full €1,800.

Solar panels also benefit from 0% VAT on supply and installation since May 2023.

Your home must have been built and occupied before 2021. The grant cannot be claimed if solar PV was previously grant-aided at the same property.

A typical 4kWp system generates around 40% of an average household's annual electricity needs. Under the microgeneration support scheme, you can also be paid for surplus electricity exported back to the grid.

Solar Water Heating Grant

Flat rate of €1,200 regardless of property type.

Solar water heating is different from solar PV. Instead of generating electricity, a solar thermal system uses roof-mounted collectors to heat your hot water directly. It typically covers 50–60% of a household's annual hot water needs.

Your home must have been built and occupied before 2021.

Windows and Doors Grant

Brand new from March 2, 2026. Previously, windows were only available as part of a full deep retrofit through the One Stop Shop route. This is the first time standalone windows grants have been available under Better Energy Homes.

Windows grant by dwelling type: Detached house €4,000 · Semi-detached or end-terrace €3,000 · Mid-terrace €1,800 · Apartment €1,500.

Doors grant: €800 per external door, maximum two doors.

Important condition: Your attic and wall insulation must already be rated Good or Very Good on a BER Advisory Report before you apply. New windows must meet a U-value of 1.4 W/m²K or better.

For a 3-bed semi, expect to pay €4,500 to €7,000 after the grant for a full window replacement depending on the number of windows and specification.

Our windows and doors grant Ireland guide explains the insulation prerequisite, U-value requirements and realistic project costs.

Heating Controls Grant

Flat rate of €700. Covers programmable timers, room thermostats and thermostatic radiator valves. A basic heating controls upgrade typically costs €500 to €950, so the €700 grant covers most or all of the cost.

Heating controls are one of the fastest, least disruptive upgrades available. They improve the efficiency of your existing heating system immediately and pair well with insulation work done in the same retrofit phase.

BER Assessment Grant

€50 toward the cost of a Building Energy Rating assessment. If you are on qualifying welfare payments, this increases to €280.

A BER is required before and after most SEAI upgrade works. A BER assessment costs €150 to €300. Book a BER assessor from the SEAI BER register before starting any upgrade work.

The Warmer Homes Scheme - Fully Funded Upgrades at No Cost

The Warmer Homes Scheme is entirely separate from the Better Energy Homes individual grants.

It provides 100% free energy upgrades for homeowners on qualifying welfare payments. SEAI manages the entire process and assigns contractors. You pay nothing.

Qualifying payments: Fuel Allowance · Disability Allowance · Blind Pension · Invalidity Pension · Jobseeker's Allowance (long-term) · One-Parent Family Payment · Widow or Widower's Pension · Working Family Payment · Carer's Allowance.

Your home must have been built before 2006.

The waiting time is 24–26 months from application to completion as of March 2026. Priority goes to homes built before 1993 with a BER of E, F or G.

The strategy most people miss: From March 2, 2026 you can claim enhanced Better Energy Homes grants for attic and cavity wall insulation while staying on the Warmer Homes waiting list. Apply for Warmer Homes now to get on the list. Then use your enhanced BEH grants to insulate while you wait. When the Warmer Homes team arrives in 24 months, insulation is done and they focus on heating, ventilation and any remaining upgrades.

Read the full Warmer Homes Scheme Ireland guide for qualifying payments, application steps and how it compares to individual grants.

The One Stop Shop Route

The One Stop Shop is a different route from individual grants. One SEAI-registered provider manages your entire retrofit - from the initial BER assessment through to project completion and grant administration. You deal with one company. The grant is deducted upfront so you only pay the balance.

Your home must achieve at least a BER B2 rating after the work is complete. It must have been built and occupied before 2011 and have a current BER of B3 or lower.

From March 2, 2026 the minimum 100 kWh/m²/year energy uplift requirement was removed for retrofit projects that include a heat pump, making more homes eligible.

The One Stop Shop offers higher grant amounts for some measures than the individual grant route. It suits homeowners planning a complete, multi-measure deep retrofit rather than phased upgrades over time.

See our One Stop Shop retrofit Ireland guide for when the bundled route beats claiming grants individually.

The Correct Upgrade Sequence - Why Order Matters

This is the single most important piece of advice in this guide. SEAI grants do not work independently. Some upgrades are prerequisites for others. Installing in the wrong order means failing eligibility.

Step 1 - BER assessment first. Before applying for any grant you need your current BER. It confirms your home's starting point, identifies which upgrades will have the biggest impact and is required by SEAI for most applications.

Step 2 - Insulation before everything else. Heat pumps require your home to have an HLI of 2.3 or lower. An uninsulated home almost never meets this. Attic and wall insulation bring the HLI down. The windows and doors grant also requires insulation already rated Good or Very Good on your BER Advisory Report. Insulate first or you will not qualify for either.

Step 3 - Heating controls. Quick, cheap, non-disruptive. Install while insulation work is complete but before heating system changes.

Step 4 - Heat pump after insulation. Once insulation is in place and HLI is below 2.3, apply for heat pump grant approval. Get this approval before ordering the unit or booking an installer.

Step 5 - Windows and doors after insulation. Apply for the windows grant only once your BER Advisory Report shows insulation rated Good or Very Good.

Step 6 - Solar PV last. Solar panels work best in a well-insulated, heat-pump-equipped home. Any surplus electricity charges your heat pump. Installing solar in a poorly insulated home reduces the return significantly.

The correct order: BER → attic insulation → wall insulation → heating controls → heat pump → windows → solar PV.

You do not have to do all of these. Every grant is available independently. But if you are planning multiple upgrades, this sequence ensures you qualify for each one. The SEAI grant calculator shows your recommended sequence based on your answers.

Stacking Grants - What Is Possible

Grants are fully stackable. A single home can claim separate grants for every eligible measure. There is no overall cap.

Example - 3-bed semi-D, oil boiler, built 1985:

Upgrade	Grant
Attic insulation (standard)	€1,300
Cavity wall insulation	€1,200
Heat pump (including Renewable Heat Bonus)	€12,500
Solar PV	€1,800
Windows	€3,000
Doors (2 doors)	€1,600
Heating controls	€700
BER assessment	€50
Total	€22,150

This assumes all measures are eligible and applied for correctly. Final amounts confirmed by SEAI.

If the same homeowner is a first-time buyer: attic insulation grant increases to €2,500, total becomes €23,350.

Want your own total? Run the numbers for your property type, heating system and grant history with the free SEAI grant calculator.

Combining a Roof Replacement with SEAI Grants

If you are replacing your roof, this is the most cost-efficient moment to upgrade your attic insulation at the same time.

The scaffold is already in place for the roof replacement. Adding attic insulation during the same project saves one full scaffold hire of €1,200–€2,500.

The attic insulation itself costs €1,800–€2,500 on a standard semi-D before the grant. After the SEAI grant of €1,300, the net cost is approximately €500–€1,200 - a fraction of what it would cost as a standalone project.

Apply for SEAI grant approval before any work starts. If the roofer has already started work, the insulation grant is disqualified. Apply at hes.seai.ie, receive written approval, then give the go-ahead to your contractor.

The insulation contractor must be SEAI-registered. This can be your roofer if they hold SEAI registration, or a second contractor for the insulation portion only. Use our SEAI registered contractors directory to verify registration before signing.

For full replacement pricing, see the new roof cost Ireland guide. For the scaffold-saving strategy in detail, read how to save money combining roof and insulation.

The Most Common Mistakes Irish Homeowners Make

Starting work before approval. The most common reason applications fail. Any works begun, materials ordered or binding start date signed before SEAI written approval permanently disqualifies the grant for that measure. No exceptions.

Using an unregistered contractor. Using a contractor not on the SEAI register for that specific measure permanently disqualifies your claim. Always verify contractor registration at seai.ie or through our SEAI registered contractors guide before signing any contract.

Not getting three quotes. Grant approval does not mean you must use the cheapest contractor. SEAI requires at least three quotes. Prices vary significantly between contractors.

Missing the tax clearance requirement. If your combined grants in a single calendar year exceed €10,000, SEAI requires a Tax Clearance Certificate. Plan for this if you are combining multiple upgrades in one year.

Installing out of sequence. Installing a heat pump before insulation, or applying for windows before insulation is rated Good or Very Good, disqualifies you from those grants. Follow the upgrade sequence above.

How to Apply for SEAI Grants

Step 1 - Get a BER assessment. A BER assessment costs €150–€300. Book an assessor from the SEAI BER register. The assessment confirms your current rating and identifies the best upgrades for your home.

Step 2 - Apply online before any work starts. Apply at hes.seai.ie. You will need your MPRN (electricity meter reference number, on your electricity bill), property details and your chosen contractor's SEAI registration number.

Step 3 - Get three quotes. Choose an SEAI-registered contractor and get at least three written quotes. Do not sign any contract or allow any work to start until you have SEAI written approval.

Step 4 - Complete the works. Once you have approval, works can begin. Your contractor submits the required paperwork to SEAI on completion.

Step 5 - Post-works BER and grant payment. A post-works BER is required for most measures. SEAI pays a €50 grant toward this. Grant payment is processed within 4–6 weeks of SEAI receiving completed paperwork.

Typical timeline: Application to written approval takes 4–8 weeks. Total process from application to grant payment is typically 3–4 months.

Frequently Asked Questions

Can I stack multiple SEAI grants on the same property?

Yes. Grants are fully stackable. A single home can receive grants for every eligible measure. There is no overall cap. You can phase upgrades across multiple years - insulation one year, heat pump the next, solar the year after. Use the SEAI grant calculator to model your total across measures.

Can I claim a grant if I previously received one?

Yes, for different measures. Each grant covers a separate upgrade. You cannot claim the same grant for the same measure twice. One exception from March 2026: you can now apply for a second wall insulation measure if you previously claimed cavity wall insulation.

Do landlords qualify for SEAI grants?

Yes. Private landlords qualify for all the same individual grants as owner-occupiers. The landlord must apply on the tenant's behalf. From 2026, landlords can also deduct up to €10,000 per property (net of grants) from rental income per year for works carried out between 2026 and 2028, for up to 3 properties.

Does the SEAI grant cover roof replacement?

No. SEAI grants cover energy efficiency measures only. Roof tiles, slates, felt, structural roofing and roof repairs are not covered. If you are replacing your roof, the attic insulation installed at the same time qualifies for a separate SEAI grant. See how to save money combining roof and insulation and our new roof cost Ireland guide.

What is the Home Energy Upgrade Loan?

The Home Energy Upgrade Loan Scheme offers government-backed loans of €5,000 to €75,000 at rates from 2.99% through AIB, Bank of Ireland, PTSB, Avant Money and participating credit unions. The upgrade must be supported by an SEAI grant and must achieve at least a 20% improvement in energy performance. It bridges the gap between the grant and the total project cost.

Are SEAI grants taxable?

No. All SEAI home energy grants are non-taxable and do not need to be repaid.

External Sources

• SEAI - Home Energy Grants 2026
• Apply for grants - hes.seai.ie
• SEAI - Find a registered contractor
• SEAI BER Register
• Citizens Information - SEAI grants
• Revenue.ie - Landlord tax deductions

All grant amounts verified against seai.ie May 2026. SEAI Better Energy Homes scheme rates effective February 3 and March 2, 2026. Enhanced rates for first-time buyers and welfare recipients effective March 2, 2026. Always verify current amounts at seai.ie before applying.