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Complete Heating & Gas Ltd Logo

Complete Heating & Gas Ltd

Chessington, Surrey
+Approved member since 2013

Services and skills

  • Central Heating

    7 skills

    Emergency Central Heating Repair

    Gas Boiler Installation

    Gas Boiler Servicing / Repair

    Gas Central Heating Installation

    Gas Cooker Installation

    Gas Safety Checks - CP12

    Smart Thermostats

  • Plumber

    23 skills

    Bathroom & Kitchen Plumbing

    Blocked Baths

    Blocked Sinks

    Blocked Toilets

    Emergency Plumber Service

    General Plumbing

    Pipe Fitter

    Plumbing Repairs

    Power Flushing

    Radiator Installation

    Radiator Repair

    Radiator Thermostat Valve Installation

    Radiator Thermostat Valve Repair

    Shower Installation

    Shower Repair

    Tap Repair

    Thermal Dynamics

    Underfloor Heating Installation

    Underfloor Heating Repair

    Water Leak Detection

    Water Mains Specialist (Pipe Replacement, Moling and Lead Pipes)

    Water Pumps Installation

    Water Pumps Repair

  • Bathrooms

    4 skills

    Bathroom Designer

    Bathroom Fitter

    Bathroom Supplier

    Wet Rooms

  • Services

    5 services

    • Domestic Work
    • Free Estimates (excl. Insurance)
    • 24 Hour Call-out
    • Insurance Work Undertaken
    • Consumer Credit Offered


Customer reviews

Overall ratingin last 12 months

9.97Write a review
  • Workmanship9.97 out of 10
  • Tidiness9.93 out of 10
  • Reliability10 out of 10
  • Courtesy10 out of 10
Write a review

701 Total Reviews

The reviews below represent customers' views and not the views of Checkatrade

  • New Boiler Fitted

    10Verified Review

    I contacted Gary when my boiler packed up. He couldn't have been more courteous and honest. He gave me a very competitive quote, and the communication was excellent. Carried out the job exactly on time and for the price quoted. Will definitely be using in the future.

    Location: KT10
  • Diagnosing the problem with an old boiler, then replacing it with a new one.

    10Verified Review

    Gary provided a first-rate service. He was punctual, efficient and remained completely focused while carrying out the work. We now have a new and - hopefully! - reliable boiler in place. Definitely recommended.

    Location: KT2
  • Boiler service

    10Verified Review

    Gary installed my boiler several years ago and it has worked perfectly ever since. He reminds me annually that its service is due in order to maintain the guarantee; he arrives promptly and services it efficiently and quietly, and removes any debris with him. He patiently explains, again, how to use the thermostat properly. I have no hesitation at all in recommending Complete Heating and Gas Ltd.

    Location: SW20
  • Fixed a leak on the boiler

    10Verified Review

    Great service from start to finish and very reasonably priced.

    Location: KT9
  • New boiler and radiators fitted

    10Verified Review

    Gary and Tom installed the new boiler and several new radiators in my house yesterday. The work was excellently done and everything was tested thoroughly and explained and everything was left very tidy too. They were most efficient and helpful and I would certainly recommend them and would use them again myself.

    Location: KT21
  • New Worcester Boiler fitted

    10Verified Review

    Gary has serviced our boiler for several years, fitted a Hive, done some maintenance and most recently fitted a new boiler. I have always been satisfied with the work. Gary is helpful, pragmatic and efficient. I'm sure will continue to use Complete Heating and Gas for whatever plumbing requirements I have.

    Location: KT1

Company profile

  • OwnerMr Gary Cousins
  • Member Since2013
  • Public Liability InsuranceUnverified
  • AccreditationsChecked
  • AddressNot Yet Checked
  • IdentityChecked
  • Checkatrade T&C'sSigned
  • VATNo
  • Company typeLtd Company

Company info

Complete Heating and Gas - THE FACTS:

Appointments missed since being a member of Checkatrade - 0
Customers charged more than quoted for without being informed - 0

Out of the last 300 reviews:

294 customers scored us 10 for courtesy

290 customers scored us 10 for time keeping

286 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 you
Gary Cousins
(Director - Complete Heating & Gas LTD)

Contact details

Accreditations and awards