
Boiler Servicing & Maintenance
- Boiler Servicing
- Combi Boiler Servicing
- System & Regular Boiler Servicing
- Annual Boiler Health Checks
- Central Heating Maintenance Contracts
One engineer. Nearly 40 years on the tools. Same-day breakdowns, honest fixed pricing, and a 12-month workmanship guarantee on every job across Stockport & surrounding areas.
Everything below is carried out personally by John Swainson, one Gas Safe engineer, no subcontracted labour, no sales pitch. Straightforward domestic gas and heating work across Stockport and the surrounding areas.





A proper old-school cover plan. £208 a year including VAT, one annual service, and parts & labour on your boiler, controls and radiator valves included. No jargon, no claim forms, no premium tiers.
No call centres. No fleet of subcontractors. Every job is booked by John, attended by John, and guaranteed by John, the same way Alan set it up in 1986 after eleven years at British Gas.
John aims to attend breakdowns the same day during the week, plus early weekend calls in winter. Most jobs are done in one visit.
Gas Safe registered #9663. Nearly 40 years of family-run experience on domestic gas boilers, servicing and heating.
Fixed £98 call-out and diagnostic, boiler service from £98, CP12 from £110. Card payment on site, no cash-only surprises.
Every piece of work is covered by a 12-month workmanship guarantee. If we've fixed it, it stays fixed.
Most models covered. If your boiler isn't listed, give John a call and he'll let you know.
All prices include VAT. Repair quotes are given after the call-out and diagnostic so you know exactly what you're paying before any work starts.
| Basic boiler service | inc. VAT | from £98 |
| Full boiler service | + parts, inc. VAT | £155 |
| Call-out & diagnostic | inc. VAT | £98 |
| Landlord Gas Safety Check (CP12) | inc. VAT | from £110 |
| Maintenance contract | inc. VAT | £208 / year |
Boiler installations are quoted free of charge and subcontracted to trusted engineers, primarily for existing customers.
"I have used Swainson Gas Services Ltd for 20 years. I wouldn't use anyone else for my boiler installation, gas boiler and fire service. They are excellent. Friendly, dependable and good prices. What's not to like."
"John Swainson is excellent at his job and has spent all his working life in the family business, started by his father, Alan. I've known him for around 40 years and always found him very conscientious, knowledgeable and responsive. I couldn't recommend him more highly."
"Would highly recommend John. Came out quickly over the Christmas holidays and explained everything to us clearly. Fixed the problem and charged a very reasonable price. Very happy with the work. Will definitely use again."
"I have had a maintenance contract with Swainson's for many years. I have always found them to be very reliable and I intend to continue for as long as I have gas heating."
"John came out on a Sunday at short notice for us and was very knowledgeable, professional and polite. Had the boiler fixed in no time. Excellent service."
"Swainson has been our heating engineer for 25 years. Always professional and reliable. I highly recommend them."
John lives and works locally, most jobs are within a short drive of the workshop at 76 Cavendish Road. If you're just outside the areas below, give him a call and he'll let you know.
Browse all areasSwainson Gas Services was founded in 1986 by Alan Swainson, after eleven years at British Gas, with a simple idea: the same quality of work, but with a personal touch. Alan built up a maintenance contract round from day one, and it's been the heart of the business ever since.
John Swainson, Alan's son, joined the family firm straight from school in 2004 and has been the sole engineer for a good while now. That means every phone call, every diagnostic and every repair goes through the same pair of hands, with nearly 40 years of family heritage behind it.
Over 500 customers currently trust us with their annual maintenance contract. Some have been with us for decades. That, more than any marketing badge, is the story of Swainson Gas.
Still not sure? Give John a call on 0161 477 2824 , he'll tell you honestly whether he's the right engineer for the job.

Same-day breakdowns through the week. Card payments on the day. 12-month workmanship guarantee on every repair.
Fill in your details and John will get back to you personally. For urgent breakdowns, ring the mobile, you'll get straight through.