SEAI Registered Installers in Mayo, from Castlebar to Knock and Surrounding Areas
72 SEAI-registered installers in Mayo covering heat pumps, solar panels, solar thermal and biomass boilers.
Grant figures confirmed against SEAI
SEAI-Registered Installers in Mayo
SEAI registered installers in Mayo fit heat pumps, solar panels, solar thermal and biomass boilers that replace oil and gas and heat your home from renewable energy.
All 72 SEAI registered installers in Mayo listed here appear on the official SEAI contractor register, which is the one thing that decides whether you can claim your grant.
Mayo's dispersed rural housing, much of it on oil, sees steady demand for heat pump and biomass upgrades, with solar PV growing across the county. Installers on this page cover Castlebar, Westport, Ballina, Claremorris and Knock and the wider county. Bordering counties are served too, including Galway, Roscommon, Sligo.
Choosing an installer on the SEAI register matters because only a registered contractor can process your grant, worth up to €12,500 on a heat pump (as of July 2026). Insulation comes first on any home energy upgrade, so a well-sealed house in Mayo gets the most from a heat pump and the lowest running costs.
Of the 72 contractors covering Mayo, 45 for solar panels, 24 for heat pumps, 8 for solar thermal and 3 for biomass boilers. 5 are registered for more than one measure, which matters if you are pairing a heat pump with solar panels, since a single contractor can then do both jobs and claim both grants rather than you coordinating two.
Start With the Service You Need in Mayo
Each of the four measures has its own list for Mayo, with the grant that applies to it and the contractors registered to fit it. Pick the one you are pricing and you land straight on the people who can quote for it.
SEAI-Registered Renewable Heating Services in Mayo
Heat Pumps Heat Pumps Air-to-water and ground source heat pump installers across Mayo. SEAI grant up to €12,500 24 installers in Mayo 
Solar Panels Solar Panels Solar photovoltaic panel installers fitting grant-eligible systems across Mayo. SEAI grant up to €1,800 45 installers in Mayo 
Solar Thermal Solar Thermal Solar thermal installers fitting collectors that heat domestic hot water. SEAI grant up to €1,200 8 installers in Mayo 
Biomass Boilers Biomass Boilers Wood chip and wood pellet biomass boiler installers registered with SEAI. No SEAI home grant applies 3 installers in Mayo Every SEAI-Registered Installer in Mayo
All 72 registered installers covering Mayo, across every service. Filter by what you need, or search by name. Contact any of them directly — there is no booking fee and we do not sell your details on.
72 installers
Comfort Solutions Retrofit
Fergus Mc Manamon
Marron Activ8 Energies LTD
Ciaran Marron
Sean Horan LTD
Michael Horan
ONG Heating and Plumbing Ltd
Seamus O'Neill
Starrs Heating and Plumbing Services
Damien Starrs
A-Chill Refrigeration
Darran Moran
AB Electrical
Anthony Bray
Achill Formwork and Construction
Donal Corrigan
Activ8 Solar Energies
Rory Daly
Allbrite Heatpump Specialists Ltd
Alan Duffy
Athronan Heating and Plumbing Ltd
Eoin Donnelly
Basrac Ltd
Ronan Basquille
Brendan McMahon Plumbing
Aidan Mac Mahon
Chris Walsh
Churchfield home services
Andrew Whelan
CMC Electrical Contracting Ltd / Duffy Solar
Ciaran Mc Caul
DMC mechanical construction ltd
Christopher Dempsey
DML Electrical Contractors Ltd
Ben Markey
Duleek Energy Centre Ltd T/A The Energy Centre
Keith Waters
Ecomech Renewables Ltd
Keith Mitchell
Ecowest Electrical and Energy Services Ltd
Seamus O Malley
EGLX LTD T/A EG Electrical
Eamonn Gallagher
EGLXX Ltd T/A EG Electrical
Nicholas McGuinness
Eire Electric
Kevin McHugh
Electric Skyline Limited
Shane Byrne
Evans Electrical Ltd
Richard Evans
Ferguson Heating and Plumbing
Brian Ferguson
Gaffney Mechanical
Johnny Ginnitty
Gibney Electrical Ltd
Alan Gibney
GoKonnect Solar
William Ludlow
Holte Ventures Ltd
Shane Devin
Hometherm Insulation Ltd
Anthony Madden
Horan Electrical Limited
Darren Horan
Instant Energy Systems
Richard Stewart
JC Electrical
Jason Carney
John Corcoran
KD Mechanical Engineers Ltd. T/A KD Group
Kieran Staunton
Kieran Mullarkey
Kingmek ltd
Patrick Chambers
Kinnelite
Kevin McNally
KMG Electrical & EV Solutions
Keith McGibney
KTB Electrical Ltd
Kevin Browne
KTC Electrical
Kevin Heneghan
Leinster Electrical Contracts Limited / Leinster Electrical
Rory Stapleton
Liam Reddington Heating & Plumbing
Liam Reddington
Local Power Ltd.
Kevin McLoughlin
M.K.O.Neill Plumbing & Heating Ltd
Micheal Hackett
Midfield Mechanical Services Ltd
Shane McDonagh
Moysolar
John Tighe
Mullagh Heating and Plumbing
Damien Murnaghan
Newgrange Energy Ltd T/A Green Electric
Daniel Smith
Newgrange energy T/A Green Electric
Stefan Mc Donnell
Newtricity Ltd
Stephen McKenna
Next Gen Solar
Keith McGibney
NMK Electrical LTD
Niall Mc Kenna
NRG Panel
Conal O'Reilly
P. McMahon Electrical & Security Ltd
Peter McMahon
Paul Bennett
Peter garrivan plumbing
Peter Garrivan
Phoenix Hill Limited / TriNRG
Noel Moran
Protech Electrical & Security Ltd
Jack Gannon
Quinn Plumbing
David Quinn
Rend Master Ltd
Tony Lindsay
Rend Master LTD T/a Solar West
Mark Brett
Royal Rebel Electrical Ltd
John Cummins
Sean Gallagher
Silverstream Renewables Ltd
Damien Holland
Solstice Renewables Solutions Ltd
Patrick Craughan
T W Mc Kitterick Elec. Contrs Ltd
Liam Mc Kitterick
Thermocare
Ronan Conlon
Titan Electrical Ltd
Michael Mc Cormick
WestQuay Energy
Patrick Chambers
No installers match. Try a different name or clear the filter.
Widening the Search Beyond Mayo
Registration is national rather than county by county, so a contractor listed under a neighbouring county can quote for a home in Mayo and process the grant the same way. If Mayo is thin on a particular service, the county next door is the first place to look.
It is worth doing even when Mayo has plenty of choice. Two or three quotes on the same specification is the only reliable way to see what the work should cost, and lead times vary a lot between firms in Connacht depending on how booked up they are. Ask each one whether the price includes the grant paperwork and any radiator or cylinder work, since that is where quotes most often differ rather than on the heat pump itself.
Towns and Areas Covered in Mayo
The 72 contractors listed above cover Mayo rather than a single town, so any of them will quote for these areas. Check your own address when you call, since a few work a tighter radius than the county.
- Ballina
- Ballinrobe
- Ballyhaunis
- Belmullet
- Castlebar
- Charlestown
- Claremorris
- Cong
- Foxford
- Kiltimagh
- Knock
- Louisburgh
- Newport
- Swinford
- Westport
SEAI Registered Installers in Mayo — Common Questions
How many SEAI registered installers are there in Mayo?
72 contractors on the SEAI registered installer list cover Mayo, 24 of them for heat pumps and 45 for solar panels. Every one is listed on this page with contact details, so you can approach them directly.
Do I need an SEAI registered installer to get a grant in Mayo?
Yes. Every one of the 72 contractors on this page is on that register, which is why they are here — the list is drawn from the register itself rather than from applications to be listed. Using an installer who is not on it means the grant cannot be claimed at all, whatever the quality of the work. In Mayo that matters most for heat pumps, where 24 of the 72 are registered for the measure.
How much is the heat pump grant worth in Mayo?
Up to €12,500 as of July 2026, made up of €6,500 for the heat pump, €4,000 as the Renewable Heat Bonus for replacing oil, gas or solid fuel, and €2,000 towards radiators and pipework. Reaching the full amount depends on the house, not the county. Wind exposure and dispersed housing put insulation and airtightness ahead of the heating system for most homes.
Which towns in Mayo do these installers cover?
Between them the listed contractors take work across the county, from Castlebar, Westport, Ballina, Claremorris and Knock and the smaller towns and villages in between. Most cover the whole of Mayo rather than one town, so it is worth asking about your own address when you call.
Can installers from counties bordering Mayo do the work?
They can. Registration is national, not county by county, so a contractor listed under Galway, Roscommon, Sligo can quote for a home in Mayo and process the grant exactly the same way. If you are near the border it is worth getting quotes from both lists.
Does my Mayo home qualify for an SEAI grant?
A home built and occupied before 2021 usually qualifies. Mayo's dispersed rural housing, much of it on oil, sees steady demand for heat pump and biomass upgrades, with solar PV growing across the county. A registered installer confirms eligibility during a free survey before any work is committed, and insulation comes first on any upgrade, since a well-sealed house gets the most from a heat pump.
The Other Trades a Mayo Retrofit Needs
A renewable heating upgrade rarely happens on its own, and the order the work goes in decides what it costs. These are SEAI-registered trades covering Mayo on our sister sites, each one worth lining up before the heating work starts rather than after.
- Before the heating work Attic and wall insulation in Mayo Insulate before you heat. A well-sealed home needs a smaller heat pump and costs less to run, and insulation carries SEAI grants of its own.
- Alongside the installation Plumbers and gas installers in Mayo Taking out an old oil or gas boiler, reworking the heating circuit and fitting the hot water cylinder is a registered plumber’s job, and a heat pump needs an RGI plumber to commission it.
Find a Grant-Eligible Installer in Mayo
Every contractor listed on hvacinireland.ie is on the SEAI register, which is a requirement for claiming any SEAI home energy grant. Choose a service above to see the full list for Mayo.