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Complete Heating & Gas Ltd

10/10

Chessington, Surrey

Checkatrade member since May 2013
10

Public liability insurance is unverified

Customer Reviews

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10 /10

Based on 11 reviews over the past 12 months

Quality of work

10

Reliability

10

Communication

10

Reviews (722)

  • 10

    Great Service And Honest Advice

    Posted 18 January

    I have been a customer of Complete Heating and Gas Ltd for a few years now, and have always been happy with the standard of work carried out and the high level of service received. Gary is always courteous and polite and provides good honest advice and guidance, and I therefore have no hesitation in recommending him and CH&GL. He sourced and fitted a replacement for one of the valves in our shower mixer recently, to cure a leak that had developed before Christmas. As usual, the work was completed quickly and efficiently, and at a very reasonable price. I'm very happy to endorse CH&GL.
    Verified reviewer
    Job location: KT3
  • 10

    Reliable and Friendly Proessional

    Posted 06 January

    The Gas Safety Certificate of my Flat happens to need renewal during Festive Season. Gary always communicates effectively with the residents of the property to conduct the job. He is also very punctual, friendly, easy going and also professional at the same time
    Job location: KT2
  • 10

    Heating Engineer and Plumber

    Posted 01 December 2025

    Gary fixed our boiler - he diagnosed the problem, sourced the part and fitted it all at a very reasonable cost. In the past he has also fixed our underfloor heating and leaks - he is extremely reliable and efficient.
    Verified reviewer
    Job location: KT3
  • 10

    Great, reliable service

    Posted 15 October 2025

    Gary has serviced our boiler for a number of years and also sorted out any issues we have had. He is very reliable and trustworthy, and we are happy to recommend him.
    Verified reviewer
    Job location: TW11
  • Jennie W
    10

    Helpful and reliable plumber.

    Posted 06 October 2025

    Gary has helped me a few times over the years. From a faulty toilet to a blocked sink and boiler servicing. He has always been really helpful and reliable.
    Verified reviewer
    Job location: KT6
  • 10

    Efficient and reliable

    Posted 16 September 2025

    Gary replaced our boiler several years ago. He is reliable and trustworthy. He does our annual service. He is knowledgable and experienced and always gives good advice. Would highly recommend
    Verified reviewer
    Job location: KT2

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Company Info

Owner

Mr Gary Cousins

Ltd Company

13 years on Checkatrade

VAT Registered

No

Domestic WorkFree EstimatesInsurance Work Undertaken24 Hour Call-out

Complete Heating and Gas - THE FACTS:Appointments missed since being a member of Checkatrade - 0Customers charged more than quoted for without being informed - 0Out of the last 300 reviews:294 customers scored us 10 for courtesy290 customers scored us 10 for time keeping286 customers scored us 10 for workmanship So if you are looking for a company that is courteous, on time and works to a high quality finish, call us today! Get ready for winter with are fantastic offers on boiler installations and servicing!Now offering up to 10 year free parts and labour warranty with Worcester boilers.BOILER FINANCE - Now available! 0% interest free for up to 12 months or up to 10 years 9.9%New boiler installation and central heating specialist - We are a Worcester Bosch approved contractor. Please call for free quote. All aspects of gas, central heating.

  • Over 15 years’ experience in install and design of central heating systems
  • Over 100 boilers installed locally each year
  • Long warranties on boiler and work
  • Competitive pricing with high quality work

Our knowledge and competitive pricing is why complete is the no.1 choice, in our opinion.

  • New Boilers
  • Boiler finance
  • 10-year guarantee’s
  • Boiler servicing
  • Full central heating systems
  • Replace radiators
  • Landlord gas safety certificates
  • Thermostatic radiator valves
  • Central heating wiring and controls
  • Un-vented cylinders / mega flows
  • Thermal stores
  • Combination boilers
  • System boilers

We are praised by our customers for giving honest and impartial advice, this has helped us to become one of the leading local companies for boiler install and all aspects of central heating.Please don't take my word for it though just take a look at the growing number of reviews.Look forward to hearing from youGary Cousins www.completehg.com(Director - Complete Heating & Gas LTD)

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