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Affordable Gas Boiler Replacement & Heating Systems

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Get a 10 or 12 year warranty on your new gas boiler* Save on your gas bills by changing your gas boiler to an “A” Rated High Efficiency Condensing Gas Boiler. Get an immediate accurate quote for a new “A” rated gas boiler that we can stand over without the need for us to visit your home. We have no hidden extras. SEAI grant of €750 available for system controls.

* Dependent on model of boiler, terms & conditions apply.

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Experience & Warranty

10 Year Warranty

* Dependent on model of boiler, terms & conditions apply.

  • Allgas are the leading experts in Dublin in installing new gas boilers and heating systems.

  • We can offer a 10 or 12 year warranty on your gas boiler depending on the model chosen.

  • We have been installing gas boilers over 37 years and are experts in doing so with minimum disruption to your home.

  • We install a magnetic filter with all boilers to further protect the boiler and system into the future.
  • We give written comprehensive quotation.

  • We have no hidden charges after our gas boiler replacement quotation.

  • We chemically cleanse all systems with new boiler installations.

  • We protect systems with corrosion inhibitors.
  • We take away all rubbish on completion of the job.

  • We have 4 qualified registered engineers for fast efficient back up.

  • We don’t use subcontractors and have trained all our own boiler fitters.

  • We can conveniently arrange to service your boiler on a yearly basis.
  • We value you as the customer and pride ourselves on ensuring that all our customers are fully satisfied with our service.
  • This is the Allgas guarantee.

  • We register your boiler for its warranty.

  • We fully comply with Data Protection Regulations.

 
 
 
 
  EXCELLENT  
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 Based on 94 reviews 
  
 
 
 
 
 
 
 
  
 
 
 
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 A Bradley profile picture 
 
 
 A Bradley 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Really great service! AllGas sorted out a new combi boiler for us and the installation was prompt, neat and efficient. Easy to contact and very friendly and professional throughout.  Celia was fantastic via e-mail at sorting everything, Stephen was helpful and explained what needed to be done really clearly, and Eddie and Lee both worked efficiently and left the house spotless when the works were completed. I'd definitely recommend them!
  
 
  
 
 
 
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 Tanya Burke profile picture 
 
 
 Tanya Burke 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
I used Allgas earlier this year to replace my gas boiler, and could not recommend them highly enough. They were extremely professional, and even though they were very busy they moved some jobs around in order to fit me in sooner. They arrived when they said they would and did a very neat job, I could not have asked for more.
  
 
  
 
 
 
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 Brendan Coyle profile picture 
 
 
 Brendan Coyle 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
An excellent and very efficient replacement of the gas spoiler. Work was carried out on schedule And to a very high standard
  
 
  
 
 
 
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 Carmel Clarke profile picture 
 
 
 Carmel Clarke 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Eddie, your employee who installed the gas boiler in my home is to be highly recommended for his  efficient work skills. He was on time, considerate of family at all times. the new gas boiler has not yet been turned on - 17 August 2026
  
 
  
 
 
 
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 Maria Murphy profile picture 
 
 
 Maria Murphy 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Allgas were so professional. I was let down by 2 plumbers, no replies, no quote after calling to see job. I tried Allgas they were professional and extremely prompt.
They arrived within days completed job and were clean and tidy.
Job was fixed and no issues since.
Highly recommend
  
 
  
 
 
 
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 Andrew McGrady profile picture 
 
 
 Andrew McGrady 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Very positive experience. Stephen and his team were highly professional and respectful of our home. Fair price and a silled installation of a replacement condenser oil burner and related pumps etc. Recommend most highly
  
 
  
 
 
 
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 Jenny Deans profile picture 
 
 
 Jenny Deans 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
I would highly recommend Allgas. Celia in the office was very quick to respond to my emails and made the booking process simple and stress-free. Paul arrived exactly on time, was lovely to deal with, and completed the work quickly and efficiently. He also left everything clean and tidy afterwards.

Overall, a very professional and reliable service, and I would happily use them again.
  
 
  
 
 
 
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 Aidan White profile picture 
 
 
 Aidan White 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Back boiler and water tank all replaced. Big job I was dreading. AllGas put me at ease from the get go. Easy to deal with, experienced company worth their reputation. Great work, in and out exactly when they said they would be. No mess, no fuss, very happy.
  
 
  
 
 
 
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 Fionnuala Gilmartin profile picture 
 
 
 Fionnuala Gilmartin 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Allgas have been excellent, I have been using them since 2022 and they are professional, prompt to get back with queries, on time, and really know their job. We just had our gas boiler replace and the piping changed and upgraded, the work was perfect and the lads were very clean also. Recommend this company.

AllGas Immediate Quote

Get a quote for a new boiler without the need for a call out to your house. Allgas can provide a quote for a replacement gas boiler based on a few photographs of your existing boiler and a few specific questions.
We can send you a link by email or text where you can take and upload these photos and information and we can reply immediately with a quote.
Of course if you prefer, or if there are unusual installation issues, we can call to your home to carry out a site survey.

Our Boiler Replacement Expertise

Allgas staff are highly trained in all aspects of system controls and gas boiler technology so we can advise you on the best solution for you and your home. Our staff will listen to your needs and requirements, assess your existing system, explain any technical issues and give you a written quotation with all your options.

All our plumbers are fully RGII Registered Installers, trained by ourselves and Solas, who work to the highest professional and technical standards. We are fully insured and meet all regulatory requirements. A RGII Declaration of Conformance is issued with every gas boiler installation.

Home Heating Solutions

If you want a new gas boiler, an upgrade of your heating system or an energy efficient full heating system, we can offer many solutions. This includes an SEAI grant of €750 for heating controls. If your boiler is broken beyond repair, we can install a new gas boiler without delay.

We offer 10 year or 12 year warranty, dependant on the model chosen, on our gas boiler replacement service on Ideal Logic Max, Ideal Vogue Max and Worcester Bosch and a range of other boiler makes.

Why You May Need A New Boiler Replacement

Over time your once dependable gas boiler will start to lose its efficiency. This results in larger heating bills as well as a less effective system.

AllGas are here to advise you on the best course of action to save you time, money and problems down the road. We’ll be able to tell you how well your current boiler is working and whether you need a boiler upgrade or whether a repair will do the job.

Our Gas Boiler Pricing, Support and Expertise Are The Best In Dublin

Our gas boiler prices are the most affordable, especially when you consider the thoroughness of our installation and the quality of the checks and tests we do at the time of installation.
We ensure your new gas boiler is the right one for you and that it’s efficiency and effectiveness is of the highest order so keeping fuel bills down.

You’ll reduce your fuel bills with a more efficient gas boiler, have better home heating and you’ll have it fitted by one of our highly trained & professional registered gas installers.

Our Warranty periods are 10 years or 12 years and we can arrange a yearly gas boiler service to ensure optimum performance for many, many years to come.

Frequently Asked Questions

Yes. Allgas are at least 20% cheaper than larger competitors. We pride ourselves on our boiler replacement quality and price. Call us for a free quote on our best boiler replacement price.

You can save up to 20% on heating bills by changing from your old boiler to a High Efficiency A rated gas boiler and up to 35% if you also upgrade heating controls. If your boiler is over 8 years old it would be a Standard Efficiency boiler with an efficiency of less than 75%. New High Efficiency A rated condensing gas boilers have a rating of over 90%. This is done by recycling the flue gases of the boiler to produce more heat.

Allgas Heating, Bathrooms & Plumbing can upgrade your boiler to a high efficiency gas boiler in just one day, with no fuss or mess. We are always very conscious that we are working in your home. We will take away all rubbish including your old boiler on completion. The addition of heating control upgrade adds an extra two days to the job generally. We can upgrade your heating controls with minimum disruption and leave you with an energy efficient and comfortable home.

There is no grant from the SEAI for gas boiler replacement. A Grant of €750 is available from the SEAI for the installation of  Heating Controls under the Better Energy Homes Scheme.  Allgas is a registered contractor under the Better Energy Homes Scheme. For full details see Grants.

Grants for elderly people are also available from local councils for a full heating system where there is no heating system or for a boiler replacement where a boiler is beyond repair. For full details see Grants.

There are a number of different types of boiler ie system boilers, heat only boilers and combi boilers – all of which we can advise you on.

Allgas Heating, Bathrooms and Plumbing is certified to install, service and repair all boilers currently on the market e.g. Ideal Logic, Ideal Vogue, Worcester Bosch, Gloworm and Vaillant boilers.

Yes we install oil boilers throughout the greater Dublin area. You can get a grant under the Better Energy Homes Scheme for a heating system controls upgrade.

Yes. We install underfloor heating which works very well with high efficiency boilers and is very useful for heating difficult areas like conservatories.

Heating Controls Upgrades are a really good idea as you will save money on your heating bills and get a grant under the Better Energy Homes Scheme towards the cost of doing so. You can get a grant for a controls upgrade.

With these controls you match your heating and hot water schedules to your living patterns. Splitting your home into two independently controlled zones (space and water) allows you to heat your hot water without having your radiators heat. These controls, which are electronic, allow you to control the temperature as well as the time in each zone. Thermostatically Controlled Radiator Valves (TRVs) allow you to adjust the individual temperature in every room. Having a separate control for your hot water is particularly useful in summer months as using your gas boiler to heat your hot water is more economical than using your immersion.

As your requirements differ from day to day a 7 day programmer will optimise savings allowing you to adjust to your individual living & working pattern.

You can also save on heating bills by only having the part of the house you are using, or about to use, heated and by being able to have different temperatures in different parts of your house at different times.

Click here for more information on grants

We would need to install controls to provide a minimum of two zones ie heating and water. These controls consist of a 7 day programmer, room thermostat and cylinder thermostat. A minimum of half of your radiators must be fitted with thermostatic radiator valves unless you are putting in a third zone e.g. splitting upstairs and downstairs radiators into two heating circuits.

You could expect to save up to 15% annually in heating bills by upgrading heating controls and up to 35% if you also install a high efficiency boiler.

Quite simply our expertise, experience, reliability, professionalism and courtesy, the back up of over 37 years experience and the Allgas guarantee. We are experts in boiler replacement and boiler service.

Our Boiler replacement service in the Dublin area covers all North Dublin and South Dublin, including Clontarf, Howth, Raheny, Drumcondra, Swords, Malahide, Ballsbridge and Donnybrook. Call us to confirm if we cover your area.

boiler replacement service

Gas Boiler Replacement Dublin

All Of Our Boilers Come With An Industry Leading, No Quibble Warranty

We Are A Leading Boiler &Heating Company With High Standards And Levels Of Customer Service 

We Look Forward To Hearing From You

Call Us On 01 831 4819|087 257 7422

Testimonials

Delighted with the job. From start to finish the lads could not have been more professional and efficient. They did an excellent job and left the house clean and tidy. I couldn’t recommend them enough.

John, Drumcondra, boiler and controls upgrade

Can’t recommend Allgas enough. Had my new boiler fitted last week and from start to finish they were extremely professional. Graham and Anthony did a fantastic job and left the place spotless when finished. Delighted with the price and workmanship.

Audrey, Artane, new boiler
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