The Sustainable Energy Authority of Ireland (SEAI) offers home energy grants to help people make their homes warmer and cheaper to heat. These grants are part of the Better Energy Homes Scheme, funded by the Irish Government and managed by SEAI. The idea is to support homeowners with the cost of energy-saving upgrades, reduce energy bills, and lower carbon emissions.
However, when it comes to gas boiler replacement, the rules have changed in recent years, and many people still get confused about what SEAI Grants will or won’t pay for. This article explains the situation in simple terms, who can apply, what support is available, and how to go about claiming a grant.
1. Can You Get a Grant to Replace a Gas Boiler? The Current SEAI Position
As of 2026, SEAI does not offer grants for buying or replacing traditional fossil-fuel boilers alone — that includes gas and oil boilers. This means if your old gas boiler breaks and you just want to swap it for a new one, SEAI will not pay for that entire boiler replacement by itself.
SEAI’s focus now is on energy efficiency and moving away from fossil fuels. If your goal is simply to replace one gas boiler with another, there isn’t a direct grant for that under SEAI schemes.
2. What Support Is Available? Heating Controls Grant
Although boiler replacement on its own isn’t funded, SEAI does provide a grant for heating controls that make your heating system work better. This includes things like better thermostats, smart heating control systems, and upgrades that help reduce wasted energy.
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Heating Controls Grant: Around €700
This support is available whether or not you also have a high-efficiency boiler installed.
Although this grant doesn’t cover a full boiler replacement, it can help you reduce your heating bills and get more out of your current system while you plan longer-term upgrades.
3. When the Boiler Replacement Is Funded — Through Heat Pump Grants
SEAI does offer generous grants if you’re replacing a fossil-fuel boiler with a heat pump — a renewable heating system that uses air or ground energy to heat your home. These grants are much larger and can go up to several thousand euros, especially when combined with related energy upgrades.
For example, under the Heat Pump System Grant:
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You can receive up to €12,500 in total for a heat pump installation.
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This includes a Renewable Heat Bonus Grant of up to €4,000 for swapping out your old fossil fuel boiler for a heat pump.
This doesn’t mean you have to replace your boiler with a heat pump — older systems still work — but the SEAI support is structured to encourage greener, more efficient heating.
4. What Are the Rules? Who Can Apply?
To be eligible for SEAI grants (whether heating controls or heat pumps), there are some general requirements you must meet:
✔ You Must Own Your Home
You need to be the homeowner — tenants can’t usually apply directly.
✔ Use SEAI-Registered Contractors
All work related to SEAI grants must be carried out by contractors who are on the SEAI registered list.
✔ Apply Before the Work Begins
You must get grant approval before you start any work. SEAI won’t pay if you begin projects before grant approval.
✔ BER Assessment Requirements
After the work is done, you usually must have a Building Energy Rating (BER) assessment submitted to SEAI to confirm the improvement in energy performance.
✔ Your Home’s Age and Condition Matter
For some grants (especially heat pumps), your home must meet minimum standards — for example, having sufficient insulation or a certain BER level first.
5. How the SEAI Grant Process Works
Getting a grant from SEAI involves a few steps:
Step 1: Choose SEAI Contractor
Select a contractor from the SEAI list. This is important because only registered contractors can do grant-approved work.
Step 2: Apply Online
Apply through SEAI’s online portal — you will need:
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Your property’s MPRN number (from your electricity bill)
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Details of the work to be done
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The contractor’s details
Step 3: Get Grant Approval
Wait for SEAI to approve your application before any work starts.
Step 4: Work is Completed
Your contractor completes the work.
Step 5: Final Documents and BER
Submit the final signed forms and, if required, a BER certificate.
Step 6: Get Paid
Once everything is checked and approved, SEAI pays the grant directly to you or your contractor.
SEAI grants typically have an 8-month validity period, so plan ahead and don’t delay the work once approved.
6. Why It’s Important to Know This
Many homeowners think there’s a big grant to replace old gas boilers, and a lot of companies say this too. But SEAI’s current rule is clear: the focus is on upgrading controls and on renewable heating systems like heat pumps, not just replacing a fossil-fuel boiler.
That means:
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If you just want a new boiler — SEAI can help with controls, but not the full boiler cost.
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If you want to switch heat systems — heat pump grants can be substantial.
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Your existing boiler can still be part of the plan while you work toward greener heating.
7. Tips for Homeowners in Ireland
Here are some helpful tips if you are thinking about a boiler replacement or energy upgrade:
📍 Get Expert Advice
Talk to a SEAI registered contractor early on. They can tell you what grants apply to your home and help with the application.
📍 Plan for Energy Efficiency
Upgrade insulation and heating controls first — this can make your home more efficient and maximise the benefit of larger grants like a heat pump installation.
📍 Check Eligibility Before You Spend
Never start work or buy equipment before SEAI approval. If you do, the grant might be refused.
📍 BER Assessment is Essential
Do a BER assessment both before and after improvements — without it, you may not get paid.
Conclusion
In simple English: SEAI grants today don’t directly pay for a new gas boiler, but they do support improvements that make your home warmer and cheaper to heat. You can get money toward heating controls and much larger funding if you choose a renewable heating system, like a heat pump, instead of a fossil-fuel boiler.
FAQs
1. Is there an SEAI grant to replace my old gas boiler with a new one?
No. SEAI does not give a grant to replace an old gas boiler with another gas boiler. Grants are no longer available for like-for-like fossil fuel boiler replacements. SEAI now focuses on energy efficiency and renewable heating instead.
2. Can I get any SEAI help if I keep my gas boiler?
Yes. You can still get an SEAI grant for heating controls, such as smart thermostats, time and temperature controls, and zoning systems. This grant is usually up to €700 and helps your heating system run more efficiently and reduce gas bills.
3. What grant is available if I replace my gas boiler with a heat pump?
If you replace your gas boiler with a heat pump, SEAI offers much larger grants. Depending on the system, you can receive up to €12,500, including a bonus for removing a fossil fuel boiler. This support is aimed at reducing carbon emissions and long-term energy costs.
4. Do I need to apply for the SEAI grant before starting work?
Yes. You must apply and receive approval from SEAI before any work starts. If you begin the installation or buy equipment before approval, you will not qualify for the grant.
5. Do I need a BER assessment to get an SEAI grant?
In most cases, yes. A Building Energy Rating (BER) assessment is required after the work is completed, and sometimes before work begins. The BER confirms that your home’s energy efficiency has improved and is a key part of the grant process.