Boiler Installations, Repairs & Boiler Servicing in London

DCR have been providing the very best in heating installation and boiler services in London for the last 15 years. We operate a team of highly experienced, commercial and domestic, GAS SAFE engineers, that can provide breakdown diagnosis, annual servicing and boiler replacement. Our directly employed engineers are backed by our mechanical design team, ensuring your heating and hot water system is not only replaced with the very best of products but equally is designed to provide the performance and efficiency your property requires.

 

DCR offer the complete turnkey solution for clients that require all building works to be completed alongside any mechanical heating or water system upgrade ensuring that the process flows seamlessly.

What our clients say

“Quality. Just before going away for a pre Christmas break our oil boiler died. DCR came to the rescue and installed a new Warmflow boiler while we were away. Emily did an amazing job in liaising with us through the entire process ensuring everything went smoothly. Mathew and Logan carried out the installation to the highest standard impeccable job. Upon our return the house was spotless and warm. We could not be happier with the service provided by DCR, highly recommended for their prompt response, professional team and top notch installation.”

Maurice Lappin

“I recently had my new boiler installed by DCR and Luke was fantastic, Very polite and tidy, looked after our house like it was his own. Emily was also great and kept us informed on everything before and during the installation. Would highly recommend to anybody.”

Mr Sergeant

“We had our first service with this company yesterday. The boiler was installed a year ago so it was also the first service for the boiler. The service engineer, Luke, was prompt, professional and extremely helpful. He kept us well informed about the process which we appreciated. Thank you.”

Nina Young

 

“Excellent work on fitting my new oil boiler and chimney liner. They left a nice clean job and worked very hard.”

John Berry

“Fantastic company, installed a whole new oil heating system and have tweaked our existing pipework to optimise our heating. Really personable and friendly team delivering great service throughout the buying to installation and have been quick to respond with queries and fixing niggles. Thoroughly recommend”

George Kane

“DCR were extremely helpful and professional, as another company left us without heating and hot water over the Christmas and New Year period. I called DCR and their representative Lewis turned up the next day and arranged for a new boiler to be fitted the following day. We received a first class service from them and we would definitely recommend DCR if you have any issues with your boiler, heating, radiators and hot water. A big thank you to Emily, Lewis, Jake and all the team at DCR and especially the team that turned up to help us.”

Jim

“Excellent service. Prompt visit, diagnosis, ordering of parts and undertaking work. Boiler working in less than 24hours. Thanks to Emily and Matthew. Will use again in future. Paul.”

Paul

“Highly recommend DCR. They recently installed state of art air source heat pump and associated kit. Led by Lewis Morley, the team were extremely professional, kept disruption to a minimum and coped with barking dog. We are delighted with the results and pleased we did not replace our oil tank. Well done guys. 👍”

Patricia Thorpe

“We had three radiators that required fitting, two of them needed full relocation including floor removal and DCR team did outstanding job, the outcome was even better than we expected.
After the job was completed DCR team ensured that everything was working properly and didn’t leave until everything was up and running. Looking forward to working with DCR team again, if I could I would give 10⭐ Big thank you to the team who attended our property and admin Emily for great customer service.”

Mr Spornas

“Very prompt and reliable. Good quality work and informative engineer. Recommend”

Leigh Atkins

 

“I used DCR to resolve an under floor heating issue. They really know Viessmann systems inside out. One of the most thorough and knowledgeable teams I have come across!”

Harsha Perera

“DCR replaced a large domestic boiler system for me. The whole process was performed promptly, professionally and by friendly staff. I am delighted with the outcome and the way in which it was done. Now, 18 months later DCR fitted solar panels for me. Again, an excellent job. Friendly, courteous, knowledgeable staff. I would not hesitate to recommend them.”

Ian Johnson

“DCR fixed my central heating. There many problems to resolve due incorrect installation by another plumber. They were very efficient and hard working. They arrived on time and were extremely pleasant. I can’t recommend them highly enough. I was most impressed with their work ethic and attention to detail.”

Mrs Crumpton

Boiler Plant Rooms
Case Studies

Viessmann Residential Plant Room Installation

Viessmann Vitodens 200 gas residential plant room alongside viessmann controls designed and installed by our heating engineers in Derbyshire.

London Energy Solution Specialists

This year our heating engineers have worked on many heating systems in London. From new boiler and cylinder installations, heating system fault finding, repairs and routine boiler servicing.

London Commercial Plant Room

Our heating engineers carrying out a commercial plant room in west London. Along with commercial plant rooms we also carry out residential boiler installations, servicing and repairs in Kensington, Chelsea, Belgravia and Westminster.

Gas & Oil Boiler FAQs

How often should my boiler be serviced?

A gas or oil boiler should be serviced at least once a year. Regular servicing ensures safety, efficiency, and compliance with regulations. DCR offers an annual reminder service, to help you keep your system in warranty, running smoothly and to help reduce the risk of costly breakdowns.

Are gas and oil boilers being phased out in the UK?

The UK government is encouraging businesses and homeowners to switch to low-carbon heating, but gas and oil boilers are still widely used and legal to install. DCR can maintain your current boiler while also advising on renewable options like heat pumps, solar, and hybrid systems when you’re ready to transition.

What are the signs my boiler needs replacing?

Frequent breakdowns, rising energy bills, unusual noises, or visible leaks are signs it may be time for a replacement. DCR can carry out a detailed assessment and recommend whether repair or replacement is the most cost-effective solution.

How much does it cost to install a new gas or oil boiler?

The cost of a new boiler installation depends on the size of your building, the complexity of the system, and any additional upgrades required. Every system we install is bespoke, designed for long-term efficiency, reliability, and compliance. Choosing DCR means investing in quality, expertise, and a heating system that’s built to last.

Are gas and oil boilers safe?

When installed and maintained correctly by Gas Safe or OFTEC registered engineers, gas and oil boilers are very safe. DCR’s engineers are fully accredited and carry out comprehensive safety checks with every service or installation.

Why should I choose DCR for my gas or oil boiler system?

At DCR, we combine technical expertise with a customer-first approach. From design and installation to servicing, breakdowns and long-term maintenance, we deliver reliable heating solutions tailored to your needs. Our Gas Safe and OFTEC accredited engineers give you complete confidence in safety, compliance, and efficiency.

Who we work for

Residential
  • Domestic Properties
  • Large Residential Developments
  • Stately Homes & Heritage Properties
  • Country Estates & Manor Houses
  • Private Landlords & Property Owners
  • Residential Property Management Companies
  • Housing Associations
Commercial
  • Offices & Corporate Buildings
  • Retail Stores & Shopping Centres
  • Hospitality & Catering (Hotels, Restaurants, Cafés, Pubs)
  • Industrial Units & Warehouses
  • Factories & Manufacturing Facilities
  • Construction & Building Contractors
  • Facilities Management Companies
Public Sector & Education
  • Schools
  • Academies & Multi-Academy Trusts
  • Colleges & Universities
  • Local Authorities & Councils
  • Government Buildings
  • Community Centres
Agricultural & Rural
  • Farms & Agricultural Businesses
  • Rural Estates & Landowners
  • Equestrian Centres
Leisure & Recreation
  • Gyms & Fitness Centres
  • Sports Clubs & Facilities
  • Leisure Centres
  • Holiday Parks & Caravan Sites
  • Event Venue

What we can do

  • Viessmann Boiler Installations in London
  • Viessmann Boiler Servicing in London
  • Viessmann Boiler Breakdowns & Emergency Repairs in London
  • Viessmann Boiler Fault Diagnosis & Expert Repairs in London
  • Bespoke Heating Controls & Smart Heating Solutions in London
  • Boiler Maintenance & Annual Boiler Checks in London
  • New Heating System Installations in London
  • Central Heating Upgrades & System Improvements in London
  • Radiator Repairs, Replacements & Powerflushing in London
  • Hot Water System Repairs & Cylinder Replacements in London
  • Underfloor Heating Installation & Maintenance in London
  • Energy-Efficient Heating Solutions for Homes & Businesses

We also service, repair and maintain all major boiler brands.

Why choose DCR?

  • Trained and Certified Domestic & Commercial Gas and Oil Engineers
  • Gas Safe Registered Engineers
  • OFTEC Registered Oil Heating Engineers
  • NICEIC Approved Electricians
  • Highly Qualified, Skilled and Professional Team
  • Extensive Experience Working Across London
  • Viessmann Boiler Specialists in London
  • Friendly, Helpful and Reliable Service
  • Fully Insured for All Work
  • DBS Checked Engineers
  • Exceptional Workmanship, High Standards & Dedicated Aftercare
  • MCS Accredited for Renewable Technologies
  • ConstructionLine Gold, CHAS Elite & SafeContractor Accredited

Areas DCR operate in London

  • Westminster
  • Chelsea
  • Mayfair
  • Kensington
  • Hampstead
  • Richmond
  • Notting Hill
  • Belgravia
  • Knightsbridge
  • Marylebone

Consultation
Call

Speak directly to our design experts by booking a consultation call with the DCR team.

We can discuss your requirements and suggest the best route for your project.

Alternatively you can call us on 02031 489 588 and we can book a convenient time.

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