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22 Manchester Square, Marylebone, London W1U 3PT Call: 07970 655 040

Boiler Installation

Our team of experienced Gas Safe registered heating engineers have installed and maintained hundreds of A rated boilers for domestic and commercial premises.

  • All houses, homes, flats, maisonettes, mansions, apartments and annexes
  • Domestic boiler systems
  • Megaflow cylinder installation

Boiler Maintenance

  • Swift heating system fault diagnosis
  • Radiators, servicing and valves
  • Control valves and heating valves

Boiler Repair

  • Pipework replacement
  • Boiler repairs
  • Thermostat problems
  • Leak repairs


What makes of boiler do you install?

Priory Gas Heating regularly install some of the leading brands of commercial and domestic including Hamworthy, Vaillant, Broag, Viessmann, Worcester Bosch and Potterton. All install installed boilers are A-rated and many are ErP compliant and all installed by Gas Safe registered engineers. Commercial boilers may be applicable for tax reductions under the Enhanced Capital Allowance Scheme.

Do the boilers come with a guarantee?

Yes, all boiler installations carried out by Priory Gas Heating come with a minimum two-year guarantee. This is to give you the peace of mind that if for one reason or another there is a problem with your boiler, we will repair it backed by the manufacturer's warranty.

Can you dispose of my old boiler?

Priory Gas Heating works closely with a number of registered waste management companies to ensure that all old boilers are disposed of safely and efficiently.

Do you offer annual maintenance and servicing for the boiler?

We offer annual and biannual tailor-made maintenance and service packages to meet the client's requirements.

Can you advise us of the heating and hot water system suitable for our requirements?

During the consultation, we will assess your existing system and conduct a survey to establish your specific heating and hot water requirements based on the property, size and usage.

Experienced Team

Our team of London boiler installers are highly qualified and experienced with all our boiler installers being Gas Safe registered.

We have over 2 decades experience in installing domestic boilers throughout London from a single boiler to multiple boilers in an apartment complex.

Our vast experience in working with a wide range of domestic boilers in a variety of premises including modern and old apartments, houses and mansions in London allows us to provide expert advice and the credibility to undertake all types of domestic boiler installations.

Our Process


Discuss your heating system’s current efficiency with one of our heating & experts. We carry out a free survey, provide you with a no obligation quotation and advise you on the best heating system appropriate for your property size, heating requirements and budget.


With exceptional value-for-money servicing, we promise that you pay exactly the amount you have seen us quoting on day one. No nasty hidden charges or uncanny surprises after installation, as we want to keep our consumers happy, safe, and warm!


Our registered Gas Safe plumbing and heating engineers are fully qualified and resourceful, and trained to install, design, repair and service every requirement of your home heating systems.

Our Clients Highly Recommend Our Plumbers

I have used Priory several times. I have received my quote upfront and time keeping has been brilliant. Each plumber was very polite and has left the area neat and tidy after work. I would easily recommend Priory Gas Heating…

Sandra Howell
Rating : 5

After a complete failure of our heating system we received a range of quotes for a replacement heating and hot water system. Not being an expert in the area of heating I commission a heating engineer to validate all the quotes.…

Mick Elliott
Rating : 5

During the instillation they were discrete, professional and reliable. No empty or broken promises. They were able to tailor their working hours, to suit the needs of the school, often working in the evening to avoid classroom disruption. During every…

Ian Kendal
Rating : 5

Richard has been carrying out work for myself and our residential committee at our Mayfair apartment complex for the last 4 years. During this time we have found Richard and his team at Priory a real gem to work with,…

Lady Montagu of Beaulieu
Rating : 5

Priory Gas Heating has provided us with excellent service whilst installing our boiler. They were courteous and cleaned up the packaging after the work was complete. We also received the guarantee and Gas Safety certificate. Very pleased with their workmanship…

Peter Wallace
Rating : 5

Great service. Swift attention and precise estimate on the phone. The quote occurred to be more difficult and broad than anticipated but the job has been accomplished to overall satisfaction at a feasible cost.

Christopher Rogers
Rating : 5
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