The Irish government has set aside over €1 billion for home renovations in 2026. Grants for insulation, heat pumps, windows, doors, and even full vacant property refurbishments are sitting there — unclaimed. And yet most Cork homeowners still pay full price for renovation work, because nobody told them the money was available.
This guide covers every major home renovation grant available in Ireland in 2026, who qualifies, how much you can claim, and — most importantly — how to stack multiple grants together so you get the maximum return on your renovation.
If you’re planning any home improvement work this year, read this before you spend a single euro.
Why 2026 Is the Best Year in a Decade to Renovate Your Home
Ireland is in the middle of the biggest home renovation grant expansion in its history. Driven by climate targets, a housing crisis, and an ageing national housing stock, the government has dramatically increased grant amounts, relaxed eligibility rules, and added entirely new grant categories in 2026.
Here’s what changed just this year:
- A brand-new Windows and Doors Grant launched in March 2026 — the first time this work has been grant-supported at scale
- SEAI attic insulation and cavity wall insulation grants increased — detached homes can now claim up to €2,000 for attic insulation and €1,800 for cavity wall insulation
- The Vacant Property Refurbishment Grant is being extended with a new Vacant Above the Shop scheme
- Heat pump grants have been increased and eligibility broadened
In short: the grants have never been bigger, and the window to claim them has never been wider. Let’s break them all down.
Grant 1: SEAI Better Energy Homes — Individual Upgrades
The Sustainable Energy Authority of Ireland (SEAI) Better Energy Homes scheme is the most widely-used home renovation grant in Ireland. It covers a wide range of energy-efficiency upgrades, and you don’t have to do them all at once — you can claim for individual measures.
What’s covered and how much you can claim:
| Upgrade | Maximum Grant (Detached) |
|---|---|
| Attic insulation | €2,000 |
| Cavity wall insulation | €1,800 |
| External wall insulation | €8,000 |
| Internal wall insulation (dry lining) | €4,500 |
| Heat pump (air-to-water) | €6,500 |
| Solar thermal panels | €1,200 |
| Solar PV panels | €2,400 |
| Heating controls upgrade | €700 |
| Windows and doors (NEW 2026) | Up to €1,500 |
Who qualifies: Owner-occupied homes built before 2011. The work must be carried out by an SEAI-registered contractor.
Key point: You can claim grants for multiple measures in the same application. A typical mid-terrace house doing attic insulation, cavity wall insulation, and heating controls could claim over €4,500 back from SEAI alone.
Grant 2: SEAI Deep Retrofit — The One-Stop-Shop
If you want to go further than individual upgrades and bring your home to a B2 BER rating or better, the SEAI One-Stop-Shop scheme covers the full retrofit process from survey to installation to grant application — and the grant amounts are significantly higher.
Under the One-Stop-Shop, a homeowner can receive grants covering up to 50% of the total cost of a deep retrofit (up to 80% for households on lower incomes through the Warmer Homes Scheme). For a comprehensive retrofit on an average Irish home, that can represent €15,000–€25,000 in grant support.
The One-Stop-Shop provider manages the entire project, including BER assessments, design, contractor management, and grant paperwork. For homeowners who don’t want the hassle of managing multiple contractors, this is the streamlined route.
Grant 3: Vacant Property Refurbishment Grant — Up to €70,000
This is the most significant renovation grant available in Ireland right now — and the most underused.
If you are refurbishing a vacant property to use as your primary home (or as a rental), you can claim:
- Up to €50,000 for a standard vacant property
- Up to €70,000 for a derelict property (confirmed derelict status required)
The grant covers structural repairs, new roof, windows, doors, internal fit-out, plumbing, electrical, plastering, flooring — essentially the full renovation scope.
Who qualifies:
- The property must have been vacant for at least two years
- It must have been built before 2007
- You must use it as your primary private residence, or rent it out under a tenancy of at least five years
- You apply through your local authority
With Ireland’s housing crisis making headlines daily and thousands of vacant properties sitting idle across Cork City and County Cork, this grant is a genuine opportunity — whether you’re buying a fixer-upper or already own a vacant property you haven’t known what to do with.
Important 2026 update: The government is extending this grant to cover vacant spaces above commercial premises (the “Vacant Above the Shop” scheme), bringing more properties into scope than ever before.
Grant 4: Housing Adaptation Grants
For homeowners with disabilities, or families caring for someone with a disability, the Housing Adaptation Grant provides up to €30,000 for works that make the home more suitable — things like ramp access, wider doorways, wet rooms, stairlifts, or ground-floor extensions.
The related Housing Aid for Older People Scheme provides up to €8,000 for essential repairs for people over 66, including roof repairs, damp-proofing, plastering, and central heating upgrades.
Both grants are means-tested and administered through your local authority (Cork City Council or Cork County Council).
The Strategy Nobody Talks About: Grant Stacking
Here’s where it gets genuinely interesting — and where most homeowners leave serious money on the table.
Many of these grants can be combined. A homeowner buying a vacant property in Cork and refurbishing it could legitimately claim:
- Vacant Property Refurbishment Grant: up to €70,000
- SEAI insulation grants (after refurbishment): €3,800–€9,800
- SEAI heat pump grant: up to €6,500
- Windows and doors grant (2026): up to €1,500
That’s a potential combined grant value of over €80,000 — on a single renovation project. The key is understanding which grants can run alongside each other, sequencing the work correctly, and ensuring all contractors are registered with the relevant schemes.
This is exactly the kind of project Shamrock Renovation handles. We’ve worked on grant-funded renovations across Cork City and County Cork, and we know how to scope, schedule, and document work to maximise your grant entitlements.
How to Apply: The Step-by-Step Process
For SEAI grants:
- Get a BER (Building Energy Rating) assessment from a registered BER assessor — this establishes your baseline
- Get quotes from SEAI-registered contractors (you can search the SEAI registered contractor database at seai.ie)
- Apply online at seai.ie before work begins — you cannot apply retrospectively
- Have the work completed by the registered contractor
- Grant is paid directly to you after completion
For the Vacant Property Refurbishment Grant:
- Contact your local authority (Cork City Council or Cork County Council) to confirm eligibility
- Have the property assessed and quotes obtained
- Submit your application with proof of vacancy and ownership
- Receive approval before commencing work
- Complete the work and submit invoices for reimbursement
Critical rule for all grants: apply before you start work. Retrospective applications are not accepted by SEAI or local authorities. If you begin work without a confirmed grant application, you lose the entitlement.
Common Mistakes Cork Homeowners Make With Renovation Grants
- Starting work before applying. The most expensive mistake. Grant applications must be submitted and acknowledged before work begins.
- Using a contractor not registered with SEAI. Only work carried out by SEAI-registered contractors qualifies for energy grants. Always verify before signing a contract.
- Applying for one grant when you qualify for multiple. Most homeowners only claim one grant when their renovation scope would qualify for two or three.
- Underestimating the Vacant Property Grant scope. Many homeowners assume a property needs to be in perfect condition to qualify. The opposite is often true — the worse the condition, the higher the potential grant (especially if derelict status is confirmed).
- Missing the 2026 Windows and Doors window. This grant is brand new and many homeowners don’t know it exists yet — but it won’t last forever in its current form.
How Shamrock Renovation Can Help
Navigating the grant landscape is genuinely confusing. The rules change. The eligibility criteria vary by property type. The paperwork is real. And the sequencing of work — what gets done first, what gets done after the grant approval lands — matters a lot.
Shamrock Renovation has been completing renovations across Cork City and County Cork for over 15 years. We’re fully insured and experienced in renovation projects — and we can help you understand the full scope of work required so you can plan your grant applications and contractor selection with confidence.
If you’re planning a renovation in 2026 and want to make sure you’re claiming every grant you’re entitled to, get in touch. We’ll give you an honest assessment of what’s available for your specific project and what the work will actually cost — with and without grant support.
No obligation. No hard sell. Just straight answers from a local team that knows its trade.