Gas boiler installation Dublin

Gas boiler Replacement Dublin

If your old boiler isn’t meeting your daily needs, and repair costs are piling up, you may be in need of a gas boiler replacement. A new gas boiler offers a whole range of benefits, particularly if your existing system is past its best.

New boilers provide unparalleled energy efficiency, meaning reduced heating costs for you all year long. And that’s not all. They’re also far more environmentally friendly, thanks to this improved efficiency.

To maintain the high efficency of your new gas boiler  please ensure you avail of  packages that cover gas boiler servicing in Dublin .

Often, replacing an old system with a brand new boiler is a more cost-effective option than forking out for continuous repairs. So many engineers recommend a replacement and new boiler installation to keep costs as low as possible.

If you think your boiler needs replacing, or you’d like to reduce the cost of your heating bills by installing a more efficient boiler system, just call us to book an Engineer Home Visit, at no cost to you.

We assess your needs and usage for free before recommending the best options for you and agreeing a fixed price quote.

We install the boiler on your chosen date. We will be clean, tidy and will arrange for your old boiler to be disposed of to a recycling facility.

We understand the impact a broken or misbehaving boiler can have on your life. With Leinster Gas Ltd you can be certain of high quality service.

Our expert RGI certified engineers have experience installing industry leading Worcester Bosch, Viessmann and Ideal boilers alongside many other top brands.


New Gas Boiler Package in Dublin includes:

  • Supply and install a gas boiler with a 10 year warranty
  • Decommission your old gas boiler and send for recycle
  • Flush the heating System to Remove iron oxide build up
  • Supply and Fit Carbon Monoxide Alarm
  • Supply and Fit Magnaclean Filter
  • Wire the heating controls
  • Fill System with Inhibitor to Protect Internal Pipe work
  • Connect to Gas Supply and commission the boiler
  • We offer a minimum of a 10 years boiler guarantee on all our gas boilers , 12 years on selected gas boiler


Cost of New Gas Boiler Installation in Dublin

The cost of a new gas boiler will depend on many factors such as the boiler type and size.  To get an instant quote for your new gas bioler just click here or on the “Instant Quote” link at the top of this page. You will then be guided through a few simple questions that offer a point and click options as answers.

Once you do this  you will instantly be emailed out 3 differnet options and the costs associated with each option.

What are the different types of gas boilers?


  • A system boiler directly heats your central heating and also your hot water cylinder.
    The major system components are built into the boiler, making it neater and quicker to install.
  • There boilers are also compatible with solar water heating systems.
  • The system boiler uses a large tank of stored water, meaning you can use multiple hot water outlets at one time without a reduction on pressure.
  • This is idea for larger house holds with more then 2 showers or baths.


  • You will have a storage of hot water for high demands
  • Constant supply of hot water from any number of taps at the same time
  • Neater looking as all the major heating components are in the boiler casing


  • System boilers take up more space as you need your hot water cylinder.
  • Energy wasted by heating your hot water cylinder and not using the water.
  • If you need greater pressure in your hot water outlets a pump is needed.


  • A combi boiler is both a high efficiency water heater and central heating boiler in a single compact unit.
  • When you turn on a hot water tap or shower a combi boilers fires up and heats the water instantly, when you turn off the tap the boiler fires down.
  • Combi boilers are very cost effective and efficient as the water is heated instantly and not stored in a cylinder.
  • Combi boiler are more suited for couples or small families with no more then 2 showers


  • More efficient a combi can save you up to €360 a year on your heating bills
  • Instant Hot water 24/7
  • No need for a hot water cylinder therefore more room in the hotpress
  • No need for a cold water storage tank therefore more room in your attic


  • Dependance on mains pressure if your mains water pressure is not strong enough you will have to install a mains booster pump fed from the cold water storage tank.
  • If the mains water supply is off you will have no water in the hot or cold taps.
  • If 2-3 hot water outlets are on at the same time the boiler might not keep up with demand.


  • A heat only boiler works on the same principle as a system boiler.
  • With a heat only boiler the expansion vessel and heating circulating pump are situated outside the boiler.
  • Also a heat only boiler requires a feed and expansion tank and can’t be pressurised from the mains.
  • Some of the Gas boiler we work with Ideal Logic, Ideal Vogue, Worcester Bosch, Viessmann, Glow worm, Potterton, Myson, Baxi Sime, Alpha, Ariston, Biasi, Ferroli, Vokera, Ravenheat, Vaillant, Siarus, Grant.

Finance available

Get a Worcester Bosch 18/24kw gas boiler with a 10 year guarantee for €18 per week or €78 per month for 3 years

Finance is available on any boilers upgrades and heating works to the value of €15000 subjected to approval.

  • We can install  or repair any make and model of gas boiler but we do like to specialise in the best, Ideal, Bosch and Viessmann being our top 3 boilers for product reliability and longevit
  • We can return annually to provide a gas boiler service to help ensure your boiler works at maximum efficiency.  
  • We are accredit installer for Bosch, Ideal and Viessmann.
  • All installers are RGI certified and fully insured for any gas works carried out.
  • An assessor will talk you through the best boiler and system for you property and one that best suites your budget you can also avail of our pay monthly offer.


We are accredit installer for Bosch, Ideal and Viessmann.

All installers are RGI certified and fully insured for any gas works carried out.
An assessor will talk you through the best boiler and system for you property and one that best suites your budget you can also avail of our pay monthly offer.

Gas Boiler Installations

10 years guarantee on selected gas boilers

Gas Boiler Installations

If we can’t fix your boiler you won’t be charged

Gas Boiler Installations

2 year guarantee on any new boiler parts


Leinster Gas
Based on 233 reviews
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david brennandavid brennan
20:14 23 Feb 23
I would highly recommend Leinster Gas. My gas boiler packed in and Jamie installed a new one within two days after making the phone call. I could not find any faults with Leinster Gas they are the most professional company to deal with and with definitely be using them in the future and will be recommending them to my friends and family. Thanks Jamie.👍
Rachel #Rachel #
19:01 22 Jan 23
Absolutely fantastic company to deal with. Had new boiler installed on Friday and Jamie and the other lad did a brilliant job; so clean and tidy and the house has never been warmer. Would recommend Leinster Gas to anyone 💯 thank you 😊
Paul McgivernPaul Mcgivern
21:31 01 Nov 22
I used Leinster today for a full flush, change 3 valves, change 3 radiator thermostats and balance the whole system. Very professional, very quick and great value. Jamie is great to deal with and Luke is nice also. Left the house the way they found it. I have been really messed about with other plumbers but delighted with Jamie and Leinster gas. Highly recommend and will be my go to plumber from now on. Great service.
Jane HughesJane Hughes
14:45 09 Sep 22
Jamie and Victor installed my new boiler and removed an old back boiler. They are absolute professionals at what they do. I cannot recommend them highly enough. Great communicators and extremely hard working. Jamie figured out the best option for me when assessing the replacement of an old back boiler with a new combi boiler. He was very patient and great at explaining the pros and cons of each option. Himself and Victor went above and beyond to make the new system work practically as well by considering the (inconvenient!) position of my gas cooker in the kitchen. There was an easier way of doing it but they went the extra mile to ensure that the kitchen functioned well with the gas cooker in it's current spot.. that meant extra inconvenient piping for them (I think!)Thanks so much to Jamie and to Victor and for sure give Leinster Gas a call if you need a job done efficiently and professionally.
Daniel DebtuchDaniel Debtuch
20:29 06 Sep 22
I'd thoroughly recommend Leinster Gas. Jamie stepped through an overview of work involved in removing the old and installing the new heating system. The day of the installation, the team arrived on time, set out floor protectors and promptly got to work, and didn't seem to stop until everything was installed later that day. Great work, no stress, satisfied customer.
Joanne McBrideJoanne McBride
14:44 06 Sep 22
My dealings with Leinster gas were all very straightforward and professional.The new boiler and valve installation was carried out yesterday 05/09/22 without any disruption, was very thorough and clean and I can recommend them strongly for all heating needs .Jamie came very promptly to quote for the work and I found him a pleasure to deal with . Joanne ( Bettystown)
Brian GrennanBrian Grennan
11:04 16 May 22
Leinster Gas were excellent to deal with and Jamie was very good at responding to any questions I had. We had a new boiler fitted and Jamie was very knowledgeable and easy to deal with when it came to deciding on a boiler and he provided detailed quotes which is not always the case when ringing around looking for a quote on a new boiler. Victor was spot on and got the job done efficiently and neatly with no fuss. Heating was blasting out of the radiators for the next week but as the warmer weather kicked in we used it less and some of the radiators stopped working properly when we turned them on. Jamie promptly advised me what to do and we got them working again.Overall they were very good to deal with and accommodating, even fitted us in at very short notice,good value too compared to a lot of the other boiler installation companies.