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22 Manchester Square, Marylebone, London W1U 3PT

Commercial Plumbers & Heating Engineers

Priory Gas Heating are Gas Safe and NICEIC registered mechanical and electrical heating engineers. Our commercial plumbers supply and fit A rated domestic and commercial boilers, design and build plant rooms, building management systems, commercial heating systems from 20kW to 12,000kW, pipework up to 12 inches in diameter, plate heat exchangers, calorifiers, purging and hydrostatic testing and fault finding.

We service and maintain many commercial boilers on an annual basis to ensure optimum efficiency and replacement of serviceable parts.

We are an environmentally aware company who take responsibility for sourcing environmentally friendly appliances (A rated) that meet ErP regulations and  dispose responsibly of retired heating systems using licensed waste collectors.

Our commercial plumbers specialise in installing commercial heating systems for schools, office, churches, leisure centers, embassies, stately homes, mansions and other commercial and corporate buildings. We work with the utmost confidentiality and minimum of disruption to business practices.

We accept quotation requests and tender enquiries for new heating systems and refurbishments in London and the home counties.


Our Process


Call to speak to our commercial plumbers to discuss your current heating systems efficiency. We can carry out a site survey and discuss your heating issues and requirements for a new or upgraded commercial boiler & heating system.


We create a detailed quotation breaking down the specific requirement for the heating system from the boiler and plant required for your needs. Our commercial plumbers highlight the efficiencies clients can obtain with the new boiler and projected fuel saving.


Our Gas Safe registered commercial plumbers remove the existing boiler and heating system and install the new heating system. This is project managed by our in house consultant.

About Priory Gas Heating

Priory Gas Heating has been a leading commercial plumbing company for over 10 years. We provide everything you need for commercial boiler installation & heating systems to ensure the property is efficiently heated.

Our mission is to provide outstanding customer service, develop long term customer relationship whilst delivering first class commercial heating systems that reduce your heating costs.

We provide a full service for commercial plumbing that offers plant room design & build, electrics and complete commercial heating installations.

Just recently, our team of commercial plumbers helped a client improve their boiler efficiency from 51% to 97% saving a significant amount of money on their bills.

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Experienced Commercial Plumbers

Our team of London based commercial plumbers & electrical engineers are highly qualified and experienced holding Gas Safe and NICEIC accreditations.

We have over a decade of experience installing commercial and domestic boilers & heating systems from a single domestic boiler to a 2 Megawatt plant room with a cascade of boilers.

Our vast experience in working with a wide range of commercial systems in a variety of premises including schools, offices and churches allow us to provide expert advice and the credibility to undertake complicated commercial plumbing & heating installations.

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Client Testimonials

Our commercial plumbers come highly recommended by our customers.

Commercial Boiler Repair and Maintenance

Having trouble with your boiler or central heating system? We offer effective repair, servicing and maintenance services at affordable prices. We understand just how frustrating and uncomfortable it can be when your heating system fails, which is why we aim to provide a fast turnaround on all repairs, causing as little disruption to you, your family or your employees as possible.

Our highly skilled London plumbers have years of experience in the industry and have dealt with every possible problem to do with boilers and central heating systems. They are all highly qualified and registered Gas Safe, so you can have the peace of mind that they will service, fix or maintain your heating system to the highest standards and leave it in a safe condition.

If your boiler requires servicing, repairs or maintenance, get in touch with our team today and we will organise for one of our expert heating plumbers to pay you a visit at your home or workplace. We also offer annual maintenance plans at discounted prices for those interested in using our services on an on-going basis.

Why choose Priory Gas Heating?

Priory Gas Heating has experience providing a wide range of high-quality plumbing services to both domestic and commercial customers in London. No job is too big or small for our team of highly skilled, experienced and qualified commercial plumbers.

We pride ourselves on the quality of our plumbing services and the excellent reputation we have built up locally over the past few years. If you are looking for skilled plumbers that you can rely on, get in touch today.

  • Qualified, experienced and GAS SAFE engineers.
  • No hidden charges. We are always upfront about our costs.
  • Free surveys and no obligation quotes.
  • Excellent reputation. We win many jobs through personal recommendations.
  • First class heating plumbing solutions you can rely on.

Affordable Prices. No hidden costs

Priory Gas Heating is one of the UK’s major plumbing contractors, providing London customers with first class heating plumbing services. We are proud of the fact that most of our jobs are won through client recommendations; a testament of the high quality, reliable and friendly service we provide.

We believe in the importance of transparency and therefore provide all of our customers with affordable quotes up front.

We promise that you will pay exactly the sum of money quoted on day one and not a penny more. Priory Gas Heating offers exceptional value-for-money skilled plumbing services without any nasty hidden costs.

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Priory Commercial Plumbers
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