Boiler Replacement in Co. Carlow
7 businesses offering boiler replacement across Co. Carlow.
Most boilers are replaced for one of three reasons: repeated breakdowns on a unit that is past economic repair, parts that are no longer manufactured, or a move away from an ageing oil or solid fuel system. A replacement is a bigger job than it first appears, because the new appliance has to suit the house rather than simply match whatever was there before.
The main decisions are fuel and boiler type. A combi draws hot water on demand and removes the cylinder, which suits smaller homes but struggles where two showers run at once; a system boiler keeps a cylinder and copes better with higher demand. A like-for-like swap is the quickest option, but changing type means pipework, and possibly a flue route and gas supply, all have to be reassessed. A power flush of the existing system is often specified so that debris from old pipework does not damage the new heat exchanger.
Natural gas and LPG installation must be carried out by an installer on the Register of Gas Installers of Ireland (RGI), which is a legal requirement rather than a voluntary accreditation; oil installations are usually OFTEC registered. If you are replacing a boiler as part of a wider upgrade, it is worth checking what SEAI currently supports before committing, since grant support is directed at heat pumps and fabric upgrades rather than at replacing one fossil fuel boiler with another.
Boiler Replacement in Co. Carlow
DA Plumbing
Carlow, Co. Carlow
DA Plumbing is an RGI registered plumbing company based in Carlow, covering Carlow town and surrounding areas such as Tullow and Bagenalstown. The team handles everything from small repairs to full installations, with an emphasis on precision, reliability, and minimal disruption. Services include bathroom renovations, central heating, tap and toilet installation, leak detection, and 24/7 emergency plumbing. They also specialise in gas boiler installation, maintenance, and repair, as well as hot water systems, water tanks, and outdoor plumbing. Using modern detection tools such as thermal imaging, they locate hidden leaks without unnecessary demolition.
Dan Fenlon Heating & Plumbing
Carlow, Co. Carlow
Dan Fenlon Heating & Plumbing, based in Carlow town, provides heating and plumbing services for domestic, commercial, and industrial clients across Carlow and the surrounding areas. The company handles gas and oil boiler installation, repair, and servicing, as well as bathroom renovations, accessible bathroom upgrades, underfloor heating, heat pumps, and solar systems. They also carry out new builds, house renovations, power flushing, general maintenance, preventative plumbing, and heating controls. The team is registered with RGII, OFTEC, and SEAI, and offers grant-assisted works and finance options through Humm.
Environmental Heat Solutions
Carlow, Co. Carlow
Environmental Heat Solutions is a Carlow based company providing domestic and commercial heating solutions throughout Ireland. The company specialises in installing modern heating technologies, including industrial log burners, heat recovery systems, buffer tank installations, and solar thermal installations. Services cover gas boiler installation, annual boiler servicing and analysis, solid fuel stoves, wood pellet boilers, heat pumps, and mechanical services. Eugene Kelly, the proprietor, is a Registered Gas Installer (RGI) and a commercial and domestic oil and gas registered technician, accredited with Kingspan Solar, Atlantic Heat Pumps, Blueflame, and SEAI. With several years of experience in plumbing, the company offers design, supply, and installation of complete energy heating solutions for homes and industrial settings.
James O'Grady Heating & Plumbing Ltd
Carlow, Co. Carlow
James O'Grady Heating & Plumbing Ltd is a plumbing and heating company based in Carlow, Ireland. They handle a range of work from plumbing repairs to gas installations, and are available 24 hours a day for plumbing issues. The company installs, repairs, and services all makes and models of boilers, and also provides gas and central heating services. They aim to offer a friendly and reliable service, with all work carried out by qualified professionals.
John Kavanagh Heating & Plumbing
Bagenalstown, Co. Carlow
John Kavanagh Heating & Plumbing is an RGI registered plumbing and heating company serving Carlow, Kildare, Kilkenny and Dublin. The firm handles domestic, commercial and retail work, offering energy-efficient plumbing solutions and a range of heating services. Their listed services include gas boiler replacement, oil boilers, central heating systems, condensing boilers, boiler servicing, bathroom renovations, limited mobility bathrooms, water pumps, solar heating and underfloor heating. They emphasise high safety standards, compliance with current legislation, and a customer-focused approach, aiming to complete work on time and within budget.
John Lawlor Plumbing & Heating Ltd
Carlow, Co. Carlow
John Lawlor Plumbing & Heating, based in Carlow and Dublin, provides gas and plumbing services across Ireland. The company handles emergency callouts for gas and oil boilers, as well as new installations and bathroom fit-outs. They supply, install, service and repair showers, often recommending full replacement for older electric power showers. Gas boiler installation is a core service, with advice on high-efficiency models and SEAI grants. They also offer annual gas boiler servicing and power flushing to clean central heating systems.
Ó Faoláin Plumbing & Heating
Carlow, Co. Carlow
Ó Faoláin Plumbing & Heating is a plumbing and heating company based in Carlow, serving domestic and commercial clients across Carlow, Kildare, Kilkenny, Wexford and Laois. The team handles gas boiler repair and servicing, gas boiler installation, complete heating installations, bathroom renovation, leak detection and repair, and emergency call-outs. They are RGI registered for gas boiler works and hold public and professional indemnity insurance. The company aims to respond to local plumbing emergencies within one hour and prides itself on five-star Google reviews.
Common questions
How long does a boiler replacement take?
A straight swap of the same boiler type in the same position is commonly a one-day job. Changing from a system boiler to a combi, relocating the boiler, or altering the flue route adds pipework and typically extends the job across two days or more.
Combi or system boiler?
A combi heats water on demand and frees up the space taken by a cylinder, which suits smaller homes with one bathroom. A system boiler with a cylinder holds a reserve of hot water and handles simultaneous demand better, so it usually suits larger households. The right answer depends on how many bathrooms are used at once, not on which is newer.
Does the installer have to be registered?
For natural gas and LPG, yes. Working on gas installations in Ireland without RGI registration is illegal, and you can check any installer against the public register before booking. Oil boilers fall outside RGI, where OFTEC registration is the usual equivalent.
Is a grant available for a new boiler?
SEAI grant support is aimed at heat pumps, insulation and other fabric upgrades rather than at replacing a boiler with another fossil fuel boiler. If you are considering a heat pump instead, a technical assessment and an installer from the SEAI registered list are required. Confirm current terms with SEAI directly, as they are revised periodically.
Other heating engineers services in Co. Carlow
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