Gas boilers are one of those things you don’t think about much until something goes wrong. In Dublin homes, especially the older ones, boilers have been working in the background for years. Heating your water. Warming your radiators. Keeping everything ticking over quietly until one day, they stop.
When that happens, most people face the same question. Do I repair it again, or is it time to replace the boiler completely?
At ARC Heating and Plumbing Services, we’ve helped hundreds of homeowners across Dublin answer that question. In this blog, we’re going to walk through what makes a good replacement service, why people in Dublin trust us to do it, and what you should know before deciding on a new gas boiler.
Why people are replacing boilers across Dublin
Let’s start with the obvious. Most boilers last between 12 and 15 years with regular servicing. After that, you start to notice things slipping. Water takes longer to heat. Radiators aren’t as warm. You’re topping up pressure more often. Your gas bill creeps up. And when something goes wrong, it’s rarely cheap.
That’s why more people in Dublin are choosing to replace their boiler before it fails completely.
New boilers are far more efficient than older models. They use less gas to produce the same heat, meaning lower bills month after month. Add in smart heating controls or zoned heating, and the savings grow even further.
There’s also the comfort factor. A modern boiler heats your home faster, more evenly, and more quietly. No more banging, gurgling or cold spots in the house.
And finally, it’s about peace of mind. With a new boiler installed by a professional, you’re covered by a full warranty and safety cert. That means no more worrying every winter if your heating will hold out.
Why ARC Heating and Plumbing Services is the first choice in Dublin
There are plenty of companies offering gas boiler replacement in Dublin. So what makes us different?
We’re local. We know Dublin. And we’ve built our reputation by doing proper work and treating people fairly. At ARC Heating and Plumbing Services, we believe boiler work should be done once, done right, and done safely.
We’re fully registered with the RGI and fully insured. Our team is made up of trained, experienced professionals who turn up on time, work cleanly, and explain everything clearly.
We don’t just throw in a new boiler and leave. We assess your full heating system. We look at pipework, controls, safety, and water pressure. We give you honest recommendations based on your home and budget, not on what’s most expensive.
And we stand over every job. If we say it’ll be done in a day, it will be. If we give you a price, it won’t change halfway through.
What’s involved in a boiler replacement
A proper boiler replacement involves a lot more than swapping one unit for another. Here’s what we do on every job:
- Remove and dispose of your old boiler safely
- Check the system for dirt, sludge or scale
- Power flush or chemically treat the system if needed
- Supply and install a high-efficiency condensing gas boiler
- Fit new flue, pipework, or valves where required
- Set up and test the boiler fully
- Configure smart controls if requested
- Register the boiler and provide full certification
We also explain how everything works before we leave. You’ll know how to use the controls, how to check pressure, and when to book your first annual service.
Serving all of Dublin, North and South
Wherever you live in Dublin, we’ve got you covered. We carry out gas boiler replacements in:
- Tallaght
- Blanchardstown
- Crumlin
- Drumcondra
- Finglas
- Clontarf
- Ballyfermot
- Rathfarnham
- Walkinstown
- Donaghmede
- Raheny
- Terenure
- Phibsborough
- Harold’s Cross
- Cabra
- Palmerstown
- Artane
- Marino
- Dundrum
- Stillorgan
- Rathmines
- Blackrock
- Sandyford
- Swords
- Santry
- Lucan
- Malahide
- Donnybrook
- And everywhere in between
If you’re in Dublin and need a new boiler, we’re the local team to call.
What kind of boiler do you need?
There’s no one-size-fits-all. The right boiler depends on the size of your home, how many people live there, your hot water demand, and your heating setup.
We help you choose the right boiler based on real needs. No upselling. No pushing whatever brand is on offer. We only install boilers from trusted manufacturers with a strong reputation in Ireland.
And we explain everything in plain English. Whether you need a combi boiler, system boiler, or something more specific, we’ll talk you through the pros and cons.
Do you need smart controls?
While we’re replacing your boiler, it’s the perfect time to upgrade your controls too. More and more homes in Dublin are now fitted with smart thermostats like Hive or Nest.
These let you control your heating from your phone, set schedules, and save even more on your bills.
If you want to add smart controls, zoned heating, or remote access, we’ll handle it as part of the install.
What about grants or finance?
Many homeowners in Dublin are eligible for SEAI home energy grants. These can help cover part of the cost of your boiler upgrade if it’s part of a wider energy efficiency project.
We’re happy to guide you through the process. We can also provide flexible payment options if you prefer to spread the cost.
We’ll never pressure you to spend more than you’re comfortable with. We believe good heating should be affordable and accessible.
Aftercare matters too
We don’t just install and disappear. We offer full aftercare, including annual servicing, system checks, and help with your warranty.
We’ll remind you when your first service is due, offer reduced rates to returning customers, and always be available if you have a question.
A boiler is a long-term investment. We make sure you’re looked after long after the job is finished.
What our customers say
Most of our work comes through word of mouth. Here’s what some of our Dublin customers have said:
“ARC were brilliant. Boiler packed in just before Christmas and they got us sorted in a day. Clean, fast and explained everything. Highly recommend.” – Clontarf homeowner
“Used ARC for a full boiler replacement in Drumcondra. Got clear pricing up front and no nonsense. Lads were sound and left the place spotless.” – Dublin 9 landlord
“Top service from start to finish. We went with ARC because they were the only ones who gave real advice instead of just throwing a quote at us.” – Rathfarnham resident
Final word
If you’re in Dublin and thinking about replacing your gas boiler, don’t leave it until winter hits hard. A new boiler can save you money, improve comfort, and give you the peace of mind that your heating is in good hands.
At ARC Heating and Plumbing Services, we offer the best gas boiler replacement service in Dublin. Local, professional, and trusted across the city.
Get in touch today to book a quote or ask a question. We’re here to help, no pressure, no sales pitch, just straight answers and solid work.
FAQs
How long does a boiler replacement take?
Most gas boiler replacements are completed in a single day. If additional work is needed, like system cleaning or pipe upgrades, we’ll let you know in advance. We always aim to keep disruption to a minimum.
Do you cover all areas in Dublin?
Yes. We replace boilers in every part of Dublin, including Northside, Southside, city centre, and outer suburbs. No matter where you live, we’re the local team to call.
What brands of boilers do you install?
We install high-efficiency A-rated boilers from trusted manufacturers. All boilers come with a full warranty and are chosen based on what suits your home and heating needs best.
Can you help me choose the right boiler?
Absolutely. We’ll ask a few simple questions about your home, water usage, and heating habits, then recommend a boiler that fits your needs and budget.
Is your team fully certified?
Yes. We are fully registered with the RGI and carry full insurance. All work is carried out by qualified, experienced professionals and includes proper certification on completion.






