Boiler Replacement in Co. Dublin
53 businesses offering boiler replacement across Co. Dublin.
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. Dublin
AG Heating & Plumbing
Dublin City, Co. Dublin
Based in Dublin, AG Heating & Plumbing carries out boiler servicing, installation and repair for homes and businesses across Dublin and surrounding counties. The company handles gas and oil boilers, including upgrades, combination boiler fitting and biomass eco boiler installation, and provides landlord safety checks. On the plumbing side, it offers emergency call-outs 24 hours a day, along with repairs to leaks, drains, toilets, sinks, water heaters and more. Bathroom installations are also listed among its services. The team says it is fully insured and certified, and provides quotations over the phone.
Allgas Heating
Dublin City, Co. Dublin
Allgas Heating provides boiler replacement, repair and servicing for homes across Dublin, with SEAI grants available for new gas boilers or heating system upgrades. Beyond heating, they offer bathroom installation, home insulation, and a full range of plumbing services from leaky taps to attic tanks. They also act as a one-stop shop for carpentry, painting, plastering, electrical and building work throughout the home.
Alpine Plumbing Ltd
Dublin City, Co. Dublin
Alpine Plumbing Ltd serves homes and businesses across Dublin, handling everything from small repairs to full bathroom installations. The team is available around the clock for urgent plumbing issues. They are RGI-certified gas installers and offer honest advice, fair pricing, and dependable results. Services include boiler replacement and servicing, general plumbing repairs, power flushing, underfloor heating installation, and smart heating controls. They also install trusted brands such as Vaillant boilers and EPH or Glow Worm smart controls.
AM PM Plumbing and Heating
Dublin City, Co. Dublin
24/7 emergency plumbing and heating services in Dublin, with registered gas installers and RECI approved electrical technicians.
Arc Heating and Plumbing Services Ltd.
The Ward, Co. Dublin
Specialists in home heating services, providing installation, servicing, and repair of gas and oil boilers. Accredited Worcester Bosch installer, RGI registered and OFTEC-certified.
AquaFlow Plumbing & Heating
Dublin City, Co. Dublin
Plumbing and heating services including emergency plumbing, boiler services, central heating repair and installation, serving Dublin and surrounding counties.
Aquatech Plumbing
Lusk, Co. Dublin
Plumbing and heating company based in Lusk, North County Dublin, established in 2001, offering gas, oil and solid fuel heating systems, solar systems, powerflushing, bathroom makeovers, and property maintenance.
Assured Quality Plumbing Service
Dublin City, Co. Dublin
Assured Quality Plumbing Service provide residential clients in Dublin with a comprehensive range of plumbing and heating services. Thanks to over 40 years' of experience, we are able to provide homeowners with quick and reliable plumbing and heating solutions.
Boiler Repairs Dublin
Blackpitts, Co. Dublin
We offer qualified and experienced engineers for boiler repair and replacement plumbing and heating systems throughout the Dublin area. All work is fully guaranteed and insured.
Boiler Replacements
Lucan, Co. Dublin
We specialise in boiler replacement in Dublin, Meath, and Kildare. We are experts in our field with over 30 years experience and offer a professional, friendly and efficient service to our customers.
CB Plumbing and Maintenance
Dublin City, Co. Dublin
Dublin plumber offering plumbing services to domestic and commercial clients, including boiler repairs and maintenance, bathroom renovations, and radiator replacements.
Church Heating and Plumbing
Dublin City, Co. Dublin
Plumbing and heating services including boiler installation, power flushing, and emergency call outs. Based in Dublin, serving surrounding areas.
Clondalkin Gas
Clondalkin, Co. Dublin
Gas boiler servicing, repair and replacement company serving Dublin West, South Dublin and Kildare, including Clondalkin, Tallaght, Lucan, Celbridge and Naas.
Cortech Plumbing
Tallaght, Co. Dublin
Plumbing and boiler services company based in Tallaght, Dublin, offering oil boiler service, gas boiler replacement, gas boiler service, gas leak detection, Saniflo toilet system installation, and electric boiler services.
DDV Plumbing & Heating Ltd
Dun Laoghaire, Co. Dublin
DDV Plumbing & Heating Ltd is a family-run business serving Dun Laoghaire-Rathdown and surrounding areas. With over 40 years of experience, the company offers a comprehensive range of plumbing and heating services, including boiler installation, repair, and servicing, as well as heat pump installation and maintenance. They also provide renewable heating solutions such as air-to-water heat pumps and solar heating systems, along with underfloor heating installation. Their commercial plumbing services cover new installations, routine maintenance, emergency repairs, and system upgrades for businesses. The company is SEAI registered, enabling customers to avail of grants for heat pump retrofits.
DeWAR Plumbers
Dublin City, Co. Dublin
Emergency plumbers in Dublin offering bathroom installation, blocked drains, boiler servicing, heat pumps, leak detection, and more.
DJN Plumbing & Heating
Dublin City, Co. Dublin
24/7 emergency plumbing, expert gas boiler installations, and quality bathroom renovations. Based in Dublin, serving Dublin City and County.
Dublin Area Plumbers
Dublin City, Co. Dublin
Dublin Area Plumbers offers a full range of plumbing services for homes and businesses across Dublin. They provide a 24/7 emergency call-out service, boiler installation, maintenance and repairs for both gas and oil systems, and central heating installation and upkeep. The team also handles commercial plumbing work, from simple fixes to complete installations. Their RGI-registered plumbers are fully insured and qualified, and the company promises transparent pricing with no hidden fees.
Dublin Gas Boiler Service
Dublin City, Co. Dublin
RGI Approved North Dublin Heating and Plumbing services provider, established in 2011, offering gas boiler servicing, repair and replacement, emergency plumbing, central heating power flushing, and bathroom remodeling in Dublin and surrounding areas.
Dublin City Plumbing Services
Dublin City, Co. Dublin
Dublin City Plumbing Services is a plumbing and central heating company operating in Dublin. The business provides gas and oil boiler servicing, repair, and installation, as well as bathroom installation and renovation. It also specialises in central heating systems, including unvented hot water cylinders and various boiler types. The company handles general plumbing for both domestic and commercial clients, offering emergency repairs. It serves North Dublin areas including Dublin 1, 3, 5, 7, 9, and Fingal regions, as well as South Dublin and surrounding areas. The team is fully qualified and registered with RGI and SEAI.
Dublin Gas Boilers
Dublin City, Co. Dublin
Gas boiler replacement and installation in Dublin, RGI certified, serving since 2006.
Dublin Gas Works
Dublin City, Co. Dublin
Heating, plumbing and electrical services provider offering gas boiler service, repair, installation, heat pump installation, and more.
Dublin Plumbers A2Z
Dublin City, Co. Dublin
Full-service plumbing company owned by Nick, covering residential and commercial jobs including bathrooms, heating, boilers, repairs and home improvements. Over 20 years of experience.
Dublin Plumber 24hrs
Dublin City, Co. Dublin
Dublin Plumber 24hrs provides plumbing services across Dublin for homeowners, landlords and businesses. The company handles general plumbing repairs, leak repairs, boiler and heating services, house replumbing, bathroom plumbing, shower and pump installation, and emergency plumbing. They serve South Dublin and Dublin City Centre, including areas such as Rathfarnham, Dundrum, Tallaght, Terenure, Rathmines, Ranelagh, Harold's Cross, Sandyford, and Stillorgan. The business has been operating since 2001 and offers 24/7 emergency callouts for urgent issues like burst pipes and major leaks. Their plumbers are fully insured, and RGI-registered professionals carry out gas work where required.
Dublin Plumbing Co-Op
Dublin City, Co. Dublin
Dublin Plumbing Co-Op is a fully insured plumbing and heating company operating as a co-op of local, independent plumbers in Dublin. They offer 24-hour emergency call-outs and cover a range of services including gas boiler replacement, drain services, heating services, water pump services, and electrical services. The team includes RGI registered gas installers, and they provide free site surveys for boiler replacements. Customer reviews highlight their prompt response, especially for emergencies, and their professional, efficient workmanship.
Dublin Plumbing
Dublin City, Co. Dublin
RGI accredited plumbers offering bathroom renovations, boiler installation/servicing, and emergency plumbing across the greater Dublin area.
Dublin Plumbing Services
Dublin City, Co. Dublin
Dublin Plumbing Services provides plumbing and heating services to commercial and domestic customers across Dublin and County Dublin. The company operates a 365-day callout service covering all aspects of home and commercial plumbing, with a dedicated team for bathroom renovations. They maintain an open pricing policy with no callout or hidden fees, and their modern fleet includes an electric cargo van. The business also highlights SEAI heating control grants on its website.
Gas Boiler
Dublin City, Co. Dublin
Based in Dublin, we supply and install efficient and sustainable gas boilers. Our team consists of qualified professionals with extensive experience in installing, repairing and replacing gas boilers.
GasPro Heating
Dublin City, Co. Dublin
Gas Pro Heating Ltd covers Dublin and Wicklow, specialising in gas boiler installation and maintenance. The company supplies and fits Grant high-efficiency oil boilers, fire valves, filters and pumps, and offers smart heating controls, including Eph Etrvs for per-room temperature control and independent hot water control. As fully insured and registered gas installers, they can advise, inspect or install gas-related systems and provide certificates of conformance. They recommend Viessmann high-efficiency gas boilers, which come with a 10-12 year warranty and are compatible with weather compensation and OpenTherm control. The team also carries out power flushing to improve system efficiency and can advise on SEAI grants.
Heatline Limited
Rathcoole, Co. Dublin
Professional and experienced plumbing contractor based in Dublin, providing heating and plumbing services including gas and oil boiler installation, servicing, and repairs.
Heatplus
Dublin City, Co. Dublin
Heatplus is a Dublin-based plumbing and gas services company. Their engineers are RGI registered gas installers, and all work is certified and guaranteed. They cover boiler repair, replacement, and servicing, as well as complete bathroom renovations and other home improvements. The company offers a 24/7 emergency call-out service and operates throughout County Dublin. They also provide carbon monoxide detector supply and fitting, and their boiler service includes a 15-point checklist.
IMECH Plumbing
Lucan, Co. Dublin
Plumbing company with over 30 years of experience, offering boiler repairs, servicing, installation, emergency call-outs, heating, general plumbing, and pumps. RGI registered and fully insured.
IPS Heating & Plumbing
Dublin City, Co. Dublin
IPS Heating and Plumbing specialises in high-quality heating and plumbing services with over 20 years of experience, serving Dublin, Navan, and surrounding areas. They are RGI Registered and fully insured, offering free quotes and services including heating installations, plumbing repairs, boiler upgrades, and leak repairs.
Kieron Murphy Plumbing & Heating
Tallaght, Co. Dublin
Kieron Murphy Plumbing & Heating brings over 30 years of experience to plumbing and heating projects across South Dublin, covering areas such as Sandyford, Carrickmines, Rathfarnham, Tallaght and Terenure. The company offers a full range of services, including gas heating, bathroom renovations, new heating systems and emergency plumbing. They also provide a 5-year guarantee on gas boilers and heating systems, and are registered with RGII and SEAI. In addition, they can connect customers with a network of other tradespeople for home improvement needs.
KTEC Oil & Gas
Dublin City, Co. Dublin
Plumbing services throughout Dublin, including oil and gas boiler repair, installation and servicing, full heating system installation, gas fire service and repair, and power flushing. Now under the stewardship of Absolute Gas and Oil Plumbing Services Dublin.
LMD Plumbing & Heating
Dublin City, Co. Dublin
Plumbing and heating company serving North Dublin, offering boiler servicing, repairs, replacements, and general plumbing services.
M.N.Davis Ltd
Skerries, Co. Dublin
Established in 1968, M.N.Davis Ltd provides plumbing, heating, drains, and oil and gas boiler services. Services include boiler repair, boiler service, boiler replacement, drain unblocking, drain cleaning, septic tank cleaning, grease trap cleaning, and heat pumps.
MPH Gas Ltd.
Deansgrange, Co. Dublin
Local, certified plumbing and heating services in South Dublin, including gas boiler installation, repair, servicing, central heating installation, power flushing, and 24/7 emergency plumbing.
New Gas Boilers
Dublin City, Co. Dublin
Gas boiler replacement, installation, and repair. Plumbing, heating, and maintenance services. Over 20 years' experience, RGI certified engineers.
North Dublin Heating
Dublin City, Co. Dublin
Heating engineer providing gas and oil boiler servicing, replacement, shower replacement, cylinder replacement, and radiator installation. All technicians are RGI registered and Blue Flame certified, and the company is an SEAI registered contractor.
NRM Heating and Plumbing
Dublin City, Co. Dublin
NRM Heating and Plumbing is a Dublin-based plumbing and heating company that describes itself as dependable and trustworthy. The team aims to solve plumbing and heating problems quickly and honestly, and works to high standards with guaranteed workmanship. They are fully insured and registered with RGI and SEAI, and keep up to date with legal requirements and best practices. Services include installing new appliances and gas central heating boilers, and the team leaves the work area clean and tidy.
Oil and Gas Services
Rathcoole, Co. Dublin
Boiler service, repair and installation provider for domestic and commercial environments since 1968.
Padden Plumbing and Heating
Skerries, Co. Dublin
Boiler installation and replacement service for oil and gas boilers, offering advice, installation, and warranty coverage.
Parsons Plumbing
Tallaght, Co. Dublin
Plumbing and heating services including bathroom installation, gas boiler installation, gas heat pump installation, and plumbing maintenance.
Philip Marry Heating & Plumbing
Clonsilla, Co. Dublin
Heating and plumbing services in Dublin 15 and surrounding areas, including bathroom renovations, emergency plumber services, gas & water leak detection, underfloor heating installation, and central heating installation.
RapidPlumb
Dublin City, Co. Dublin
RapidPlumb is a Dublin-based plumbing and heating company with over 22 years of experience, run by Alan and his team from Donaghmede. They cover North, South, and Greater Dublin, offering services from emergency call-outs to full installations. The team handles electric and power showers, gas boiler supply and installation, hot and cold water storage tanks, bathroom fit-outs, and central heating repairs or replacements. They also provide expert advice on plumbing projects and compliance. Customer reviews highlight fast response times, professionalism, and clean, tidy workmanship.
Shay Walsh Plumbing
Dublin City, Co. Dublin
24/7 emergency plumber service covering Dublin (all areas) & Co. Dublin, Meath, and Kildare. Also offers plumbing installation and repairs, heating installation and repairs, bathroom suite installation, boiler installation, and more.
Smart Flow Plumbers
Malahide, Co. Dublin
Smart Flow Plumbers covers Dublin and surrounding areas, including Kildare, Meath, and Louth, for domestic and commercial plumbing and gas work. The team is qualified and experienced, and offers transparent, upfront pricing with no hidden fees. They provide 24/7 emergency services for both homes and businesses, with a fast, fully stocked plumber arriving ready to fix issues efficiently. The company is known for its customer service and handles water leaks, heating problems, and general plumbing issues, as well as gas boiler installation and servicing.
Stillorgan Gas
Stillorgan, Co. Dublin
Gas boiler services, repairs, and installations, plus plumbing, electrical, and heating services.
Swords Plumbing and Gas
Swords, Co. Dublin
Swords Plumbing and Gas is a Dublin-based plumbing and heating company covering installation, repair, and maintenance work. Their fully qualified plumbers handle kitchen installs, bath taps, shower replacements, hot water cylinder replacements, leaking pipework, outside taps, bathroom renovations, and burst pipes. The team also supplies and fits regular, system, and combi boilers from manufacturers such as Worcester Bosch, Viessmann, Ideal, Baxi, and Grant, with warranties ranging from 7 to 12 years. They provide gas boiler servicing and Annex E safety checks for landlords, carried out by RGII-registered inspectors. Their vans arrive fully stocked with parts to resolve most issues on the spot.
The Dublin Plumber
Dublin City, Co. Dublin
The Dublin Plumber, run by Kevin Farrelly, is based in Swords and serves North Dublin. The team offers both general and emergency plumbing services, with a policy of arriving within an hour for emergency calls, typically responding in 20-40 minutes. Available 24/7, they handle gas leaks, heating system breakdowns, and burst pipes. General services include drain unblocking, gas and oil boiler installation, and bathroom installation. The business is a Registered Gas Installer.
Update Heating
Dublin City, Co. Dublin
Update Heating is a leader in Boiler Upgrade or Replacement Services in Dublin. Established in 1982, Update Heating Ltd has more than 40 years experience in the commercial and domestic heating industry. We provide gas and oil central heating installations and services in the greater Dublin area.
Waterworx
Rathfarnham, Co. Dublin
Waterworx provides a comprehensive range of plumbing and heating services to domestic clients based throughout Dublin, Kildare and the surrounding areas. With over two decades of industry experience and a team of qualified, highly skilled tradesmen, we have developed a market-leading service characterised by our efficient work and affordable prices. We handle all types of domestic installation, maintenance and repair requests for plumbing and heating systems, with a timely service guaranteed.
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. Dublin
Looking more broadly? Browse all heating engineers in Co. Dublin.