SEAI Grant Calculator Ireland 2026 — Instant Estimate
The SEAI grant calculator Ireland tool below estimates your total grant entitlement based on your home type and chosen energy upgrades. Grant amounts reflect the updated 2026 SEAI Better Energy Homes scheme rates effective from February and March 2026.
Estimate Your SEAI Grant
Estimated total SEAI grant:
ⓘ Estimates based on 2026 SEAI Better Energy Homes scheme rates. Final grant amounts depend on SEAI approval, home assessment, and registered contractor confirmation. Always verify at seai.ie before applying.
SEAI Grant Amounts Ireland 2026
The table below shows all current SEAI grant calculator Ireland values for 2026 under the Better Energy Homes scheme. Grant amounts were updated in two phases — February and March 2026 — as part of Ireland’s National Residential Retrofit Plan. Amounts vary by home type for insulation measures.
| Upgrade Measure | Detached | Semi-D | Mid-Terrace | Apartment |
|---|---|---|---|---|
| Attic / Rafter Insulation | €2,000 | €1,300 | €1,200 | €800 |
| Attic Insulation (FTB / Welfare) | €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 |
| Heat Pump System | €12,500 | €12,500 | €12,500 | €9,500 |
| Solar PV Panels | €2,400 | €2,400 | €2,400 | €2,400 |
| Windows | €4,000 | €4,000 | €4,000 | €4,000 |
| Doors | €1,600 | €1,600 | €1,600 | €1,600 |
| BER Assessment | €280 | €280 | €280 | €280 |
ⓘ Grant amounts are based on the SEAI Better Energy Homes scheme updated February–March 2026. All grants are non-taxable and do not need to be repaid. You must use an SEAI-registered contractor and receive grant approval before works begin. For roof replacement costs, see our New Roof Cost Ireland guide or Roof Cost Calculator.
SEAI Grant Eligibility & How to Apply in Ireland
Before using the SEAI grant calculator Ireland result to plan your upgrade, confirm you meet the core eligibility requirements. All grants under the Better Energy Homes scheme require SEAI approval before any work begins — starting work without approval means you will not receive the grant.
Property Age
Your home must have been built and occupied before 2011 to qualify for insulation and heating control grants. For heat pump and renewable energy grants such as solar PV, the property must have been built and occupied before 2021.
Owner-Occupier or Landlord
You must be the registered owner of the property. Landlords are eligible but additional conditions apply. Tenants cannot apply directly — the application must come from the property owner. Properties in multi-unit developments may apply through an owners’ management company.
SEAI-Registered Contractor
All work must be carried out by a contractor on the SEAI registered list. Using an unregistered contractor will disqualify your grant application regardless of the quality of work completed. Always verify your contractor’s registration on the SEAI website before signing any contract.
Grant Approval First
You must receive written grant approval from SEAI before any work starts on your property. Retrospective applications — where work has already been completed — are not accepted under the Better Energy Homes scheme. Apply through the SEAI online portal at seai.ie.
Grants Are Stackable
You can combine multiple SEAI grants in a single application. A homeowner upgrading attic insulation, cavity walls, and installing a heat pump could claim over €16,000 in combined grants. Each measure requires its own approval but can be submitted together.
What Is Not Covered
SEAI grants do not cover roof tile or slate replacement, roof repairs, or general maintenance. Grants are focused entirely on energy efficiency upgrades. For roof replacement costs, see our Roof Cost Calculator.
How to Apply for an SEAI Grant in Ireland — 5 Steps
Use the calculator above to estimate your total grant entitlement based on your home type and chosen upgrades.
Get a BER assessment from a registered BER assessor. This confirms your home’s current energy rating and identifies the most effective upgrades. SEAI grant of €280 available for this step.
Apply online at seai.ie for your chosen measures before any work begins. You will receive written approval from SEAI confirming your grant amounts.
Choose an SEAI-registered contractor and get at least three written quotes. Do not sign a contract or allow any work to start until you have SEAI grant approval in writing.
Claim your grant after work is completed and inspected. Your contractor submits the paperwork to SEAI and the grant is paid directly to you or deducted from your invoice depending on the scheme used.
Apply directly for SEAI grants at SEAI Home Energy Grants. For full eligibility details and consumer rights guidance on contractor disputes, visit Citizens Information.
SEAI Grant Calculator Ireland — Frequently Asked Questions
These are the most common questions Irish homeowners ask about the SEAI grant calculator Ireland and the Better Energy Homes scheme in 2026. Each answer gives a direct response, key detail, useful context, and a clear next step.
How much is the SEAI grant for attic insulation in Ireland in 2026?
The SEAI grant for attic insulation in Ireland in 2026 ranges from €800 for an apartment to €2,000 for a detached house under the standard Better Energy Homes scheme. First-time buyers and homeowners on qualifying welfare payments receive a flat enhanced grant of €2,500 regardless of home type, effective from March 2026. Attic insulation is widely considered the most cost-effective single energy upgrade available to Irish homeowners, with SEAI estimating the grant now covers approximately 80% of the total installation cost. Use the calculator above to estimate your full grant entitlement across multiple measures.
Can I combine multiple SEAI grants in Ireland?
Yes — SEAI grants are fully stackable, meaning you can claim separate grants for multiple energy upgrades in a single application or across multiple applications over time. A homeowner upgrading attic insulation, cavity walls, and installing a heat pump could claim over €16,000 in combined grants in 2026. Each measure requires its own SEAI approval before work begins, but all measures can be submitted together through the SEAI online portal. The SEAI grant calculator Ireland tool above automatically totals your estimated entitlement across all selected measures.
Does the SEAI grant cover roof replacement in Ireland?
No — SEAI grants do not cover the cost of replacing roof tiles, slates, felt, or any structural roofing elements. The Better Energy Homes scheme is focused exclusively on energy efficiency measures such as insulation, heat pumps, and renewable energy systems. If your roof replacement includes attic insulation as part of the same project, the insulation element may qualify for a separate SEAI grant. For full roof replacement cost guidance, see our New Roof Cost Ireland guide or use our Roof Cost Calculator.
How long does an SEAI grant application take in Ireland?
Individual energy upgrade grant applications through the Better Energy Homes scheme typically take 4–8 weeks from submission to written approval from SEAI. Processing times can vary depending on application volume and the complexity of the measures requested. Once work is completed and your SEAI-registered contractor submits the required paperwork, grant payment is usually processed within 4–6 weeks. For complex multi-measure projects or One Stop Shop applications, the full process from application to payment can take 3–6 months — visit Citizens Information for full guidance.