John Williams Heating Services Ltd
Chippenham, Wiltshire
Checkatrade member since May 201410
Services
- General Plumbing
- Plumbing Repairs
- Power Flushing
- Radiator Installation
- Radiator Repair
- Radiator Thermostat Valve Installation
- Radiator Thermostat Valve Repair
- Tap Repair
- Underfloor Heating Installation
- Underfloor Heating Repair
- Unvented Hot Water Cylinder Installation
- Unvented Hot Water Cylinder Servicing / Repair
Customer Reviews
Write a review9.9 /10
Based on 14 reviews over the past 12 months
Quality of work
9.79
Reliability
9.93
Communication
10
Reviews (327)
10 New boiler supplied and fitted
Posted 22 January
Job location: SN8We 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.9.33 Good service, good products, helpful people.
Posted 21 January
Job location: SN16John 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.10 Boiler Service
Posted 19 December 2025
Job location: SN15James carried out a full Boiler Service for us. He was very Professional, Helpful and Courteous. Thank you James and John Williams Heating.10 Professional
Posted 24 October 2025
Excellent service would highly recommendVerified reviewerJob location: SN159.67 Efficient, reliable and knowledgeable engineering staff
Posted 21 October 2025
They were efficient, quick and reliable with well-trained and knowledgeable engineering staff. Their office is excellent and they run good maintenance schemes. First class and helpful serviceVerified reviewerJob location: SN15- CChrissy B
9.67 installation of tailpipes
Posted 03 September 2025
great customer experience, I would certainly use them again!Verified reviewerJob location: SN12
Photos
Company Info
Owner
Mrs Debbie Williams
Ltd Company
12 years on Checkatrade
VAT Registered
Yes: 840852036
John Williams Heating Services is a family run business, owned and operated by husband and wife team John and Debbie Williams. Established in April 2004, the company has a combined knowledge and experience of over 100 years and is based on Bumpers Farm Industrial Estate in Chippenham, Wiltshire.
Our aim is to provide an excellent customer experience from the first point of contact until the job is complete, no matter how big or small the job. We are honest and reliable and do an excellent job for a fair and competitive price, without compromising on quality. With fourteen qualified engineers on the road, we are big enough to cope but small enough to care.
Accreditations and awards
This trade passed up to 12 Checkatrade vetting checks
Member since May 2014
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