Heating installers · Mayo
Central Heating Installation in Mayo: Oil, Heat Pump and Gas Systems
Find a heating installer for a new oil central heating system, a heat pump conversion or a gravity-to-pumped upgrade across Mayo. 2026 prices, SEAI grant guidance and installers from Castlebar to Louisburgh.
The law
Central Heating Installation in Mayo: What the Law Requires
A wet central heating system in Mayo is a mix of trades. The radiators, pipework and controls are general heating and plumbing work, but the gas boiler at the heart of the system must be installed by an RGI-registered gas installer for any boiler running on natural gas or LPG, a legal requirement under the Gas Safety (Installation and Use) Regulations. An unregistered installer cannot certify the gas element, your home insurance may be invalidated, and the work cannot be included in a BER certificate.
The installers listed here cover the whole county, taking in Castlebar, Westport, Ballina, Claremorris, Knock, Belmullet, Crossmolina and Swinford. Browse them all in the Mayo plumber directory.
How Long Does Central Heating Installation Take in Mayo?
A full system install takes two to four working days. A boiler and radiators upgrade is two to three, while adding controls takes one.
SEAI Grants for Mayo Homeowners in 2026
Up to €6,500 for a heat pump system and up to €700 for a heating controls upgrade, through SEAI-registered contractors.
Local coverage
Central Heating Across Mayo: The Areas Covered
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.
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 heating installers in the Mayo plumber directory.
The options
Oil, Heat Pump or Gas: The Right System for Mayo Homes
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.
Oil Central Heating
The most common central heating system in Mayo, where much of the county sits outside the gas network. A modern condensing oil boiler drives radiators, cylinder and zoned controls together.
Heat Pump Central Heating
An air source heat pump running low-temperature radiators or underfloor pipework. Best paired with good insulation and larger radiators, and eligible for the SEAI heat pump grant of up to €6,500.
Gas Central Heating
Runs on natural gas where available or on LPG from a tank, a workable central heating option in the gas-connected pockets of Mayo. The boiler drives radiators and controls as one system.
2026 prices
Central Heating Cost in Mayo 2026: Prices From Castlebar to Louisburgh
Typical Mayo ranges for a whole-system approach. All figures include labour and VAT at 9%.
Full system install
€4,500–€7,500
Boiler, radiators, controls and pipework
Boiler + radiators upgrade
€3,500–€5,500
New boiler with replacement radiators
Heating controls & zoning
€350–€900
Room stats, timers and zone valves
System power flush
€400–€700
Clears sludge before or after an upgrade
Annual service
€80–€120
Recommended every 12 months
Mayo has very soft water from its mountain catchments, with extremely low mineral content in the west of the county. This soft water is gentle on appliances but can be aggressive to copper and mild steel, requiring appropriate corrosion inhibitors in all heating systems.
SEAI grants
SEAI Grants for Mayo Heating Upgrades
Grants are available for a heat pump system (up to €6,500) and a heating controls upgrade (up to €700). A like-for-like gas or oil boiler swap does not qualify directly, and work must be carried out by an SEAI-registered contractor before any grant can be claimed. 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 plumbers →Hiring
How to Find a Central Heating Installer in Mayo
The gas boiler in any Mayo system must be fitted by an RGI-registered installer. Here is how to verify and hire correctly for the whole job.
Browse Plumbers and Heating Installers in Mayo
Every plumber and heating installer listed in the Mayo plumber directory covers central heating work. Browse the county, find installers near you, and contact them directly. For the gas boiler, an RGI-registered Mayo gas installer can be verified at rgii.ie.
Get Three Written Quotes for the System
Quotes should name the boiler or heat pump model, the number of radiators, the controls being fitted and any pipework changes. A quote without a named heat source is incomplete, since the specification affects warranty terms, SEAI grant eligibility and long-term running costs.
Confirm SEAI Registration if Claiming a Grant
For a heat pump or a heating controls upgrade the grant is paid only when the work is done by an SEAI-registered contractor. Confirm your installer is on the register before any grant-eligible work begins, and keep the paperwork for your application.
Request Certification on Completion
A gas boiler at the heart of the system must come with a gas safety certificate on the day the work is completed. Keep it with your home insurance documents and BER certificate, because without it the gas work is unverifiable and will affect your property resale.
Central Heating in Mayo: Common Questions
How much does central heating installation cost in Mayo in 2026?
A full wet central heating system in Mayo costs €4,500 to €7,500 in 2026, taking in the boiler, radiators, controls and pipework. A boiler and radiators upgrade is €3,500 to €5,500, and heating controls with zoning €350 to €900. Figures include labour and VAT at 9%.
How long does central heating installation take in Mayo?
A full central heating system install in Mayo takes two to four working days depending on the number of radiators and the pipework involved. A boiler and radiators upgrade is usually two to three days, while adding controls or zoning to an existing system takes one day.
Do I need an RGI-registered installer in Mayo?
Yes, for the gas boiler. A central heating system in Mayo running on natural gas or LPG must have the boiler installed by an RGI-registered gas installer by law. The radiators, pipework and controls are general heating and plumbing work, but the gas boiler element must be certified.
Is there an SEAI grant for central heating in Mayo?
A standard gas or oil boiler swap does not qualify for a direct SEAI grant. Grants apply to a heat pump system (up to €6,500) and to a heating controls upgrade (up to €700), plus insulation carried out at the same time. Mayo homeowners in homes built before 2011 are eligible to apply.
Can I run central heating in Mayo if my home is off the gas network?
Yes. Most homes in Mayo outside the natural gas network run oil central heating, or a heat pump where insulation allows. A gas system can still work on LPG supplied from a tank, and the same RGI registration rules apply to LPG as to natural gas. Your installer will size the system to the property.
Can I upgrade an old gravity system to fully pumped in Mayo?
Yes. Converting an open-vent gravity system to a fully pumped, sealed setup with modern controls is one of the most common central heating upgrades in Mayo. It improves efficiency and comfort, and is usually done alongside a new boiler and a power flush to clear years of sludge.
Get Central Heating Quotes in Mayo
Central heating in Mayo, from full system installs to boiler and radiator upgrades and heat pump conversions, matched to installers near you. Free, no obligation, reply within 24 hours.