John Williams Heating Services Ltd

Reviews (330)

• 9.33

  Excellent and Professional Service

  Posted 19 March

  First time using John Williams Heating Services and I’m extremely happy with the. service provided. The guys fitted a new boiler for me, they were extremely polite and knowledgeable. Will definitely be using this company again.
  Job location: SN15
• 10

  An Excellent Company who clearly appreciate your custom.

  Posted 26 February

  LPG Boiler was installed by John Williams Heating Services in 2019 and they’ve been the ones to carry out the annual service on it ever since. Every one who has ever carried out the work has been courteous, considerate of my property, very thorough in respect of the work being carried out and even offered guidance on how to get the best from the boiler. I can honestly say that every engineer who’s been to my home has been extremely professional and a credit to the company. I would highly recommend this company and I personally, wouldn’t choose to go anywhere else,
  Verified reviewer
  Job location: SN6
• 10

  Boiler broke-excellent service

  Posted 11 February

  Great service. From the moment I spoke to the team in the office to seeing the engineer. You were recommended by a neighbour and I will definitely use your team in the future for my boiler service. Thank you all so much
  Verified reviewer
  Job location: SN13
• 10

  New boiler supplied and fitted

  Posted 22 January

  We used John Williams Heating Services Ltd to supply and fit a new boiler after our old one packed up and was condemned. The engineers did a brilliant job over two days and were very professional, friendly and knowledgeable. They took time to check the whole system was fully working and explained the new controls and cleaned up before they left. We would not hesitate to recommend this company.
  Job location: SN8
• 9.33

  Good service, good products, helpful people.

  Posted 21 January

  John Williams Heating Services installed a new combi boiler in my house a year ago. It has worked very effectively throughout. They have just carried out the first annual checkup of the system, serviced the boiler and given it a clean bill of health. The engineer kindly explained what he was doing and gave tips on how to be energy efficient. I am very happy with the work done and the service provided.
  Job location: SN16
• 10

  Boiler Service

  Posted 19 December 2025

  James carried out a full Boiler Service for us. He was very Professional, Helpful and Courteous. Thank you James and John Williams Heating.
  Job location: SN15