Heating installers · Kilkenny
Central Heating Installation in Kilkenny: Systems for Gas, Oil and Heat Pump Homes
Find an installer for a full central heating system, a boiler and radiators upgrade or an oil-to-heat-pump conversion across Kilkenny. 2026 prices, SEAI grant guidance and heating installers from Kilkenny City to Graiguenamanagh.
Central heating installation in Kilkenny
Kilkenny city and county has a compact gas installer market centred primarily around Kilkenny city, where the natural gas network provides good coverage. The wider county is predominantly rural with oil and LPG heating common across smaller towns and farming areas. Kilkenny city's historic building stock, including period terraces and older commercial premises, provides consistent demand for boiler replacement and gas appliance work.
Kilkenny City has a concentration of heritage buildings and older stone structures, many of which have been converted into homes and apartments. Working in these properties often requires sensitive approaches to pipe routing and system design to avoid damage to historic fabric. The rural county is predominantly farming country with older farmhouses, many of which have oil systems due for replacement.
The law
Central Heating and the Law in Kilkenny
A wet central heating system in Kilkenny 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 Energy (Miscellaneous Provisions) Act 2006. 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 Kilkenny city, Callan, Thomastown, Castlecomer, Graiguenamanagh and Urlingford. Every gas installer is drawn from the RGI public register.
- RGI registration is required by law for the gas boiler
- Radiators, pipework and controls are general plumbing work
- A gas safety certificate is issued when the work is done
How Long It Takes in Kilkenny
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 Kilkenny Homes
Up to €12,500 for a heat pump system and up to €700 for a heating controls upgrade, through SEAI-registered contractors.
The options
Choosing Between Gas, Oil and Heat Pump in Kilkenny
Kilkenny city has solid natural gas network coverage, while the rural county including towns like Callan, Thomastown and Castlecomer relies mainly on oil and LPG.
Gas Central Heating
A gas boiler running radiators and a cylinder through zoned controls. Popular in Kilkenny City and the larger towns on the gas network, and simple to upgrade to fully pumped. Supply and fit.
from€4,500
Oil Central Heating
A mainstay outside the gas-connected towns of Kilkenny. A condensing oil boiler runs the whole system, and new controls sharpen efficiency. SEAI grants apply when converting to a heat pump.
from€4,800
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 €12,500.
from€6,000
2026 prices
Central Heating Cost in Kilkenny 2026
Typical Kilkenny ranges for a whole-system approach. All figures include labour and VAT.
- Get an itemised quote covering boiler, radiators, pipework and controls
- Heating controls and zoning add €350 to €900 but cut running costs
- A power flush before an upgrade adds €400 to €700
Kilkenny draws water from the River Nore and has moderately hard water. The city centre properties on the older pipe network occasionally experience pressure issues in upper floors, and older lead service pipes are still found in pre-1970s buildings.
- Full system install €4,500–7,500
- Boiler and radiators upgrade €3,500–5,500
- Heating controls and zoning €350–900
- System power flush €400–700
- Annual service €80–120
Indicative 2026 ranges. Always confirm with a written quote before work begins.
SEAI grants
SEAI Grants for Kilkenny Heating Upgrades
Grants are available for a heat pump system (up to €12,500) and a heating controls upgrade (up to €700). A like-for-like gas or oil boiler swap does not qualify directly, and the 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 Kilkenny are listed at wallinsulationireland.ie.
See SEAI-registered plumbersHiring
How to Hire a Heating Installer in Kilkenny
The gas boiler in any Kilkenny system must be fitted by an RGI-registered installer. Here is how to verify and hire correctly for the whole job.
Browse Gas and Heating Installers in Kilkenny
Every installer in the Kilkenny gas installer directory covers central heating work, drawn from the RGI public register. Browse the county, find installers near you and contact them directly. You can verify any RGI registration number at rgi.ie for extra peace of mind.
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.
Local coverage
Central Heating Across Kilkenny: Areas Covered
Kilkenny is inland and exposed, with some of the more notable frost periods in the south-east. The Nore Valley can hold cold air on still winter nights, making it one of the colder parts of Leinster outside the mountains.
Kilkenny City has a well-established plumbing trade with several long-running businesses. Thomastown, Callan and the south of the county are served by local contractors with good response times. Castlecomer and north Kilkenny have coverage but specialist or emergency work may draw from Kilkenny City.
Every area above is served by registered gas installers in the Kilkenny gas installer directory.
Common questions
Central Heating in Kilkenny: Common Questions
How much does central heating installation cost in Kilkenny in 2026?
A full wet central heating system in Kilkenny 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.
How long does central heating installation take in Kilkenny?
A full central heating system install in Kilkenny 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 Kilkenny?
Yes, for the gas boiler. A central heating system in Kilkenny 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 Kilkenny?
A standard gas or oil boiler swap does not qualify for a direct SEAI grant. Grants apply to a heat pump system (up to €12,500) and a heating controls upgrade (up to €700), plus insulation carried out at the same time. Kilkenny homeowners in homes built before 2011 are eligible to apply.
Can I run central heating in Kilkenny if my home is off the gas network?
Yes. Most homes in Kilkenny 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 Kilkenny?
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 Kilkenny. 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 Kilkenny
Central heating in Kilkenny, 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.
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