A warm welcome to City Gas,

City Gas is a family run company specialising in the installation, servicing and repair of boilers in London and surrounding counties.

We also carry out landlord gas safety inspectionspower flushinggas hob installationcooker installationand plumbing.

Why Choose Us? 

The Chadwick family has been involved in the plumbing and heating industry since the 1950s. We have the knowledge, experience and expertise needed to ensure that you receive nothing but the best service. Our team has over 100 years’ experience!

Free callout service 9:00 am – 5:00 pm

  • GAS SAFE REGISTER approved
  • Insured
  • Fixed competitive rates
  • Prompt & reliable service
  • Accredited Worcester Bosch, Vaillant and Viessmann Installers
  • No hidden costs such as parking and congestion charges
  • Honest Company
  • Free no obligation boiler survey & quotation
  • Experienced

We are known as the “clean heating company.” Every technician and installer carries dust sheets, protective carpet coverings and cleaning sprays to ensure your home stays the way it should. We respect your home as if it were our own!

If you have a problem with your boiler, heating or hot water system and require a repair, or you would like to book one of our services, call our office at 020 8882 2266 or 0800 075 8181 any time, day or night.

We provide free on site boiler quotations and have fixed prices for repairs.

“Our aim is simply to provide the highest standards in boiler installation, repair and servicing in London. Our team take great personal pride in every job we undertake. As a third generation heating engineer, we help you rest assured that you’re in ‘SAFE, knowledgeable hands’.”


Stephen Chadwick
(Third generation heating engineer)

Get a Online Boiler Installation Quote

LOOKING FOR A NEW BOILER? We can give you an instant estimate as to how much a new boiler would cost. This is a free, online, no-obligation estimate that will give you an indicative price for a boiler we’d recommend is best suited to your home. QUOTE ME NOW

Boiler Installation London

One of the key services that we offer is boiler installation in London. It is an area that we have specialised in for a number of years and there is a good chance that you actually came across our website by searching for something like boiler installation London.
We have a number of extremely happy customers throughout the boroughs of London and we have these because of the quality work, support, and aftercare that we provide.

If your home has a boiler that is over 15 years old then it would be advisable to move forward with a new installation rather than continually seeking to repair issues as they arrive. A new boiler installation will give you a much more reliable and energy efficient system, giving you peace of mind whilst also saving you money on your monthly energy bills.

If you live in London or the surrounding areas and would like to discuss the different options then please give us a call and ask to speak to one of our professional and fully qualified boiler engineers today.

Don’t forget to ask about the 10 year warranty that is available as well as the free servicing and Powerflush on all boilers that we install.

Boiler Repair London

Our Boiler Repair London service is ideal for those that have issues with newer boilers or for those that simply cannot afford to replace a boiler that is very old.

Our boiler engineers are vastly experienced with a wide range of systems that are produced by a number of manufacturers.
Boiler systems can be extremely complex and it is highly recommended that you employ professionals to perform your boiler repairs rather than attempting repairs yourself. There are many jobs for the DIY enthusiast but anything relating to a boiler is not one of them; more often than not you will end up making the issue worse rather than fixing it.

The heating engineers at City Gas are fully trained to carry out boiler repairs and we have all of the required certification and insurance in place to really set your mind at ease.

If you find that you are having frequent issues then you should consider regular boiler servicing. This will help you to avoid many inconvenient issues.

Boiler Servicing London

We offer boiler servicing to all homeowners and businesses throughout London. It is a simple and cost effective task that can often save hundreds of pounds in repair or new installation costs due to the fact that small issues can be attended to before they escalate into a larger issue.
Boiler servicing is something that only needs to be done once a year or twice per year if you would prefer.

Call the team  free on 0800 075 8181 and we will be happy to discuss your requirements and set up a boiler servicing plan that will be perfect for you.

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