SEAI-registered contractors · Mayo
SEAI Grants in Mayo: Heat Pump Grants for Oil-Heated Homes
SEAI grants for Mayo homeowners moving off oil: up to €12,500 towards a heat pump, plus solar and heating control grants, with SEAI-registered contractors from Castlebar to Louisburgh.
SEAI grants in Mayo
Mayo is a large, predominantly rural county on Ireland's west coast where natural gas network coverage is very limited. Castlebar has some gas network access, but the vast majority of Mayo, including Westport, Ballina, Knock, Claremorris and the coastal areas, relies on LPG or oil for domestic and agricultural heating. Installers in Mayo who hold LPG certification are well positioned to serve the broad rural market across the county.
Mayo is one of the most rural counties in Ireland, with a dispersed housing pattern of farmhouses, bungalows and cottages across a very large geographic area. Westport and Castlebar have newer residential development, but much of the county's housing is older and relies on oil-fired heating systems that SEAI grants are now targeted at replacing.
What qualifies
SEAI Grants in Mayo: What Qualifies
SEAI grants are available to Mayo homeowners upgrading to a heat pump, solar water heating or heating controls, provided the work is carried out by an SEAI-registered contractor. The SEAI only pays out on work done by a contractor on its register, so the plumber you choose decides whether your grant is approved.
A standard gas or oil boiler replacement does not qualify for an SEAI grant. The grants reward renewable and efficiency upgrades, and they reward doing the work in the right order: insulate first so the home holds its heat, then upgrade the heating.
- The grant is only paid on work done by an SEAI-registered contractor
- You apply to the SEAI before any work starts
- Insulate first, then size the heat pump to the improved home
What You Can Claim in Mayo
Up to €12,500 towards a heat pump, €1,200 towards solar water heating and €700 towards heating controls, with separate grants for insulation.
A Registered Contractor
The SEAI only pays grants on work carried out by a contractor on its register, so verifying registration before you book is the most important step.
The grants
SEAI Grants for Mayo Homes
Each grant covers a different upgrade and carries a different amount. Here is what each one is for before you choose a contractor in Mayo and apply.
Heat Pump Grant
The largest individual home energy grant, towards an air-source or ground-source heat pump. A technical assessment confirms your Mayo home is ready for one, and the work is carried out by an SEAI-registered installer.
fromUp to €12,500
Solar Water Heating
Towards solar thermal panels that heat your domestic hot water. A good fit for homes with a hot water cylinder, and it reduces how hard your main heating has to work through the year.
from€1,200
Heating Controls
Towards upgraded heating controls: programmable timers, room thermostats and zoning. It gives you finer control over when and where you heat, and is often claimed with a larger upgrade.
from€700
One-Stop-Shop
For a whole-home retrofit, an SEAI-registered one-stop-shop bundles insulation, heating and controls into one managed project, handling the grant paperwork and the contractors for Mayo homeowners.
fromVaries
What you pay
What You Pay After SEAI Grants in Mayo
The grant is a contribution, not the full cost. What a Mayo homeowner pays is the fitted price of the upgrade minus the SEAI grant, and the net figure depends on the home, the contractor and the work involved. Treat the figures here as a budgeting guide, never a quote.
- The grant is deducted from the fitted price, not added on top
- A registered contractor quotes the full job before you apply
- Insulation done first can change how the heating job is priced
Natural gas coverage in Mayo is limited primarily to Castlebar. The rest of the county, including Westport, Ballina, Claremorris and all rural areas, relies on LPG or oil.
- Heat pump grant Up to €12,500
- Solar water heating €1,200
- Heating controls €700
- Insulation grants Separate grant
- One-stop-shop retrofit Varies
These are the grant amounts, not the fitted price. Always confirm your net cost with a written quote.
How it works
How SEAI Grants Work for Mayo Homes
You apply to the SEAI before the work starts, choose a contractor from the SEAI register, get the work done, then submit for payment once it is complete. The registered contractor is central to the whole thing: the SEAI only pays out on work done by a contractor on its register, so verifying registration before you book is the most important step a Mayo homeowner takes.
A fabric-first upgrade makes the biggest difference to running costs, and SEAI-registered insulation contractors covering Mayo are listed at wallinsulationireland.ie.
See SEAI-registered plumbersThe process
How to Claim an SEAI Grant in Mayo
The order matters. Apply before the work starts, use an SEAI-registered contractor in Mayo, and keep the paperwork. Here is how a grant runs from start to payment.
Check Eligibility and BER
Confirm your Mayo home and the upgrade qualify, and arrange a BER assessment where the grant requires one. This shows where the home is losing heat.
Choose a Registered Contractor
Pick an installer from the SEAI register covering Mayo. The grant is only paid on work done by a registered contractor, so verify registration before you commit.
Apply Before Works Begin
Submit your grant application to the SEAI before any work starts. Starting the job before the grant is approved can mean the grant is refused.
Get the Works Done
The registered contractor carries out the upgrade to the SEAI standard, whether that is a heat pump, solar water heating or heating controls.
Submit for Payment
Once the work is complete, submit the paperwork the SEAI needs, including the contractor documentation and any post-works BER where required.
Receive the Grant
The SEAI pays the grant to you after the works are verified. Keep all documentation, as a Mayo homeowner will want it when selling the home.
Local coverage
SEAI Grant Work Across Mayo: Areas Covered
North-west Mayo faces the full force of Atlantic weather and is consistently one of the windiest parts of Ireland. Properties on the Mullet Peninsula and along the Erris coast require particularly robust outdoor pipe protection and weatherproofed boiler flue installations.
Castlebar and Ballina are the main service hubs for the county plumbing trade. Westport has a strong local market. For Belmullet, Erris and the more remote parts of north Mayo, contractors may travel from Ballina or Castlebar, and advance booking for non-emergency work is advised.
Every area above is served by registered plumbers in the Mayo plumber directory.
Common questions
SEAI Grants in Mayo: Common Questions
What SEAI grants are available in Mayo in 2026?
Mayo homeowners can claim up to €12,500 towards an air-source or ground-source heat pump, €1,200 towards solar water heating and €700 towards heating controls, along with separate grants for insulation. A whole-home retrofit can be managed through an SEAI-registered one-stop-shop.
Do I need an SEAI-registered contractor in Mayo?
Yes. The SEAI only pays grants on work carried out by a contractor on its register. Verifying that your Mayo plumber or installer is SEAI-registered for the upgrade you want is the most important step, because the grant will not be paid otherwise.
Can I get an SEAI grant for a new gas or oil boiler in Mayo?
No. SEAI grants are for renewable and efficiency upgrades such as heat pumps, solar water heating, heating controls and insulation. A standard gas or oil boiler replacement in Mayo does not qualify, though heating controls fitted at the same time may.
Should I insulate before installing a heat pump in Mayo?
Yes. A heat pump runs low and steady, so it works best in a home that holds its heat. SEAI grants are built around doing insulation first, then sizing the heat pump to the improved Mayo home. Fitting a heat pump into a poorly insulated home leads to high running costs.
How do I apply for an SEAI grant in Mayo?
Check that your home and upgrade qualify, arrange a BER assessment where required, choose an SEAI-registered contractor covering Mayo, and apply to the SEAI before any work starts. Once the work is done you submit for payment, and the grant is paid to you after the works are verified.
How do I find an SEAI-registered plumber in Mayo?
Browse plumbers across Mayo on plumbersinireland.ie, sorted by county, then contact registered contractors directly. Always confirm a contractor is on the SEAI register for the upgrade you want before any work begins.
Find an SEAI-Registered Plumber in Mayo
SEAI-registered contractors for heat pump, solar and heating upgrades across Mayo. Contact them directly, no fees, no sign-up.
Browse Mayo plumbers