Consultancy and Design

Great systems start with great design

Exceptional design is the foundation of every high-performing heating and renewable energy system. With decades of proven experience and a commitment to precision, DCR offer bespoke system designs tailored to the unique requirements of each client and property, ensuring maximum efficiency, long-term reliability, and compliance with the latest industry standards.

From complex integrated energy systems to standalone heating installations, we approach each project with technical expertise and meticulous attention to detail. We work closely with leading manufacturers to stay at the forefront of renewable technology, enabling us to incorporate the most advanced solutions, from heat pumps and solar PV to hybrid energy systems, into our designs.

We firmly believe that great systems start with great design. That’s why every DCR installation is backed by thorough planning, long before any equipment is specified or priced. We don’t simply quote and install- we engineer systems that work. Our in-house team includes skilled engineers and consultants who understand that no two buildings are the same, and have a proven track record of correcting failed systems due to poor initial design.

Unlike many contractors, we understand that skilled installation doesn’t always equal skilled design. Our clients, whether homeowners, developers, consultants or architects, value the clarity, professionalism and passion we bring to every stage of the process. We welcome open discussion and provide detailed design explanations to ensure our clients feel confident in the systems we deliver.

Our growing portfolio includes longstanding partnerships with residential and commercial clients across central London and beyond. If you’re seeking a design-led heating and renewable energy partner, we’d be delighted to show you the DCR difference.

Project Management

For consultants and professional teams seeking a reliable delivery partner, DCR offers comprehensive project management as part of our turnkey service. We coordinate every stage of the installation process from detailed design to site supervision and commissioning, ensuring full alignment with programme requirements, specifications, and compliance standards. Our project leads are qualified to SMSTS levels and beyond, reflecting our commitment to health and safety, structured site management, and best practice. With DCR, consultants gain a technically competent, responsive partner who can seamlessly integrate with wider project teams and deliver complex systems with confidence and precision.

What our clients say

“My 12 year old solar system stopped working. DCR predicted from the symptoms that the inverter had probably failed and quoted to replace it with a choice of brands at very competitive costs. The engineer arrived with a new inverter already on the van which had been ordered in advance should it be required. His test of the system confirmed the old one was indeed faulty, but the rest of the system was operating as it should. The inverter was replaced and commissioned on the spot with the installation being a very neat, tidy and professional job. The whole team from DCR were really courteous, helpful and knowledgeable from initial enquiry to fitting. This is a good, honest, competent and reputable company that I would strongly recommended.”

Peter Brunger

“We have been very impressed with DCR. They really do understand renewable systems. We contacted them to help sort out a number of problems we were having with our ground source heating system and they did a fantastic job. As a result we asked them to install a solar thermal hot water system for us. As expected it was professionally installed and works very well. As well as being competent engineers the support service is excellent. We are 120 miles from their office and they happily travel over and spend the time to carry out any necessary work or servicing.”

Rob Storer

 

“Excellent Service! We are very pleased with how proficient Becky, Dan & the team were with our solar installation. They are a credit to DCR!”

Becca Holdings Ltd

“Initial enquiry about the installation of a battery to supplement the long installed solar PV led to a swift home appointment with advice & very helpful explanation of options but with NO hard sell. Fitting date exactly when we wanted, carried out with explanations when sought & cleaned up afterwards. Certainly can recommend the team.”

Keith Marklew

 

“Excellent workmanship, from Jake, Matt and Gavin on the installation of our Heat Source Pump. Very pleased, would recommend. Thank you Robert and Karen”

Robert and Karen Parr

“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

 

“Solar panels and battery fitted in November. Very professional from initial fault finding visit to completion of the installation. It was good to be able to discuss our needs and be given various options. Communication with office staff was excellent. All the workforce on site were courteous and polite. The work was completed in under 3 days and everything left clean and tidy. Would have no hesitation in recommending the company for this sort of work.”

Kath Hirst

“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

“Just had my ASHP serviced I was using Vaillant the manufacturer for years but decided to try DCR they did and excellent job far superior to the manufacturers well done and thank you.”

Sandy Bannatyne

 

“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

“Had a full solar installation done by DCR found them first class right from quotation to completion very informative and courteous guys, can’t recommend them enough, far more professional than others I had quotes off”

Brian John

 

“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

“From start to finish – that’s from the initial call to installed, running and working – it took DCR less than 2 weeks to quote and install a new Heat Pump heating system, and remove the old Oil setup.
All the way through the communication was excellent, they sorted the BUS grant and the team worked all day every day to get everything up and running – including repainting the boiler room.
Great job, very happy. Special mention to James for leading the team, and Lewis for coming on the last day to get the glory of the handover.
Update — After a week ( just heating hot water at the minute ) The house electricity bill is actually less than it was with the old oil boiler!”

Graham Tyers

“I can’t recommend the DCR team enough for their work replacing our Air Source Heat Pump System, from the director level (Lewis), through all engineers and also the admin team. As you can imagine, the cost of this is type of thing is expensive so we wanted to get it right. We had several other companies review the works, but DCR were extremely thorough with the different options available to us and they were always very responsive. From start to finish, we were always made aware of what was happening. The team were very professional, and special thanks go out to Gav and James for their efforts. Thank you”

Paul Dobb

“VERY HAPPY with DCR. Following a careful assessment of local solar providers, I went to DCR for a single project to cover everything (solar panels/batteries/car chargers & extra electrical outlets across the property, such as in the garden) and their work has been exemplary – prompt, courteous and very tidy. The resulting SolarEdge system works well and there were no unexpected additional costs. Snags were dealt with quickly and well. Highly recommended.”

Jonathon Berg

“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

 

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

John Berry

“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

 

“DCR have installed us a fantastic Solar edge system. With the rising costs of energy and running costs of our business the investment made will ensure we are able to comfortably trade in the future. From start to finish DCR were 100% responsive at all times and even put a plan in place for us that is yielding us up to 50% savings already. All of the DCR team were on time, polite and respectful at all times. As a business, we couldn’t recommend them highly enough. Thank you.”

Code Fitness Ltd

“One big advantage of DCR is that they have a large enough team to do all the installations of equipment, the electrics and the building work”

Tony Watts

 

“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

 

“everyone was helpful and polite, involving and informing us at every step, respectful of our property and those of our neighbours and were totally professional throughout”

Tony Watts

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

Leigh Atkins

 

“By the end of week two everything was as good as or better than new and we were very cosy with our new heating, and endless hot water, amazed at how well our panels were generating and delighted with the clearing up process which even included hosing and scrubbing our driveway. As well an excellent installation team the backroom staff at DCR were also very helpful, kind, patient, reassuring and professional on every occasion. In summary we could not be happier with the way everything went and would certainly recommend DCR”

Tony Watts

“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

 

“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 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

 

“An excellent company with expert staff who provide a first class professional service.”

Mike Kirton

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

  • Decarbonising Buildings & Energy Efficiency Planning
  • Heating System Design for Domestic & Commercial Properties
  • Renewable Energy System Design (Heat Pumps, Solar, Hybrid Systems)
  • Solar PV System Design, Specification & Performance Analysis
  • Full Mechanical & Electrical (M&E) Design Services
  • Assessment of Existing Installations for Efficiency Improvements
  • Consultancy on Upgrading, Renewing or Optimising Current Heating Systems
  • Building Energy Audits & Carbon Reduction Strategies
  • Feasibility Studies for Low-Carbon Technologies
  • Compliance, Technical Guidance & Regulatory Consultation
  • Lifecycle Planning & Long-Term Energy Management Strategies

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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