--- title: "Boiler Servicing in Stockport & Greater Manchester | Swainson Gas Services" description: "Full and basic boiler services from £98 inc. VAT. Gas Safe #9663 engineer, family-run since 1986, 12-month workmanship guarantee. Covering Stockport, Greater Manchester & surrounding areas." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "/#organization", "name": "Swainson Gas Services Ltd", "alternateName": "Swainson Gas Services", "url": "/", "logo": "/__l5e/assets-v1/2f3afd23-ed83-4d5d-a90b-6d75c9544dc3/swainson-logo.png", "image": "/__l5e/assets-v1/2f3afd23-ed83-4d5d-a90b-6d75c9544dc3/swainson-logo.png", "telephone": "07442 536165", "email": "info@swainsongas.co.uk", "foundingDate": "1986", "founder": { "@type": "Person", "name": "Alan Swainson" }, "address": { "@type": "PostalAddress", "addressLocality": "Stockport", "addressCountry": "GB" }, "sameAs": [ "https://www.facebook.com/people/Swainson-Gas-Services/61563360904402/", "https://www.instagram.com/swainsongas/", "https://x.com/swainsongas" ] }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "/#website", "name": "Swainson Gas Services", "url": "/", "inLanguage": "en-GB", "publisher": { "@id": "/#organization" } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "/services" }, { "@type": "ListItem", "position": 3, "name": "Boiler Servicing", "item": "/services/boiler-servicing" } ] }, { "@context": "https://schema.org", "@type": "Service", "serviceType": "Boiler Servicing", "name": "Boiler Servicing", "description": "Full and basic boiler services from £98 inc. VAT. Gas Safe #9663 engineer, family-run since 1986, 12-month workmanship guarantee. Covering Stockport, Greater Manchester & surrounding areas.", "provider": { "@type": "LocalBusiness", "name": "Swainson Gas Services Ltd", "telephone": "07442 536165", "address": { "@type": "PostalAddress", "addressLocality": "Stockport", "addressCountry": "GB" } }, "areaServed": [ "Hazel Grove", "Stockport", "Bramhall", "Cheadle Hulme", "Poynton", "Marple", "High Lane" ], "url": "/services/boiler-servicing" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does a boiler service cost?", "acceptedAnswer": { "@type": "Answer", "text": "A basic service starts from £98 inc. VAT. A full service (recommended for boilers over five years old or previously neglected) is £155 + parts inc. VAT. There are no hidden fees, anything additional is quoted before we do it." } }, { "@type": "Question", "name": "How long does a boiler service take?", "acceptedAnswer": { "@type": "Answer", "text": "Typically 40 to 75 minutes for most domestic combis, depending on the model and what needs doing. If we find something that needs discussing, we discuss it before doing more work." } }, { "@type": "Question", "name": "Do I need to service a new boiler?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, nearly all manufacturer warranties (Worcester, Vaillant, Ideal, Baxi) require an annual service logged by a Gas Safe engineer. Miss the first anniversary and warranty cover can be reduced or refused." } }, { "@type": "Question", "name": "Do you cover my boiler brand?", "acceptedAnswer": { "@type": "Answer", "text": "Yes for all the mainstream brands: Worcester Bosch, Vaillant, Glow-worm, Ideal, Baxi, Main and Potterton. Most legacy brands are also covered, call and ask." } }, { "@type": "Question", "name": "Will you leave a written service record?", "acceptedAnswer": { "@type": "Answer", "text": "Always. You'll receive a written service record showing what was done, the combustion analyser readings, and any recommendations." } }, { "@type": "Question", "name": "Can you service my boiler and do a landlord CP12 in one visit?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, and it's normally the cheapest way to do both. Ask when you book." } }, { "@type": "Question", "name": "How do I pay?", "acceptedAnswer": { "@type": "Answer", "text": "Card machine on the job. No cash-only surprises, no chasing bank details afterwards." } }, { "@type": "Question", "name": "How quickly can you fit me in?", "acceptedAnswer": { "@type": "Answer", "text": "For routine servicing, usually within the same week. For same-day breakdowns, John will always try to attend that day, see the boiler repairs page." } } ] } ] --- Based in Stockport [info@swainsongas.co.uk](mailto:info@swainsongas.co.uk)Gas Safe registered #9663 Open 7am – 6pm, 7 days [](https://www.facebook.com/people/Swainson-Gas-Services/61563360904402/)[](https://www.instagram.com/swainsongas/)[](https://x.com/swainsongas) [![Swainson Gas Services](/__l5e/assets-v1/2f3afd23-ed83-4d5d-a90b-6d75c9544dc3/swainson-logo.png)](/) [Home](/) [About](/about) [Services](/services) Our services - [Boiler Servicing & Maintenance](/services/boiler-servicing) - [Boiler Repairs & Breakdowns](/services/boiler-repairs) - [Gas Safety Checks](/services/landlord-gas-safety-check) - [Heating Controls & Radiators](/services/thermostat-heating-controls) - [Other Gas Services](/services/gas-fire-servicing) [Areas](/areas) Areas we cover [Hazel Grove](/areas/hazel-grove)[Stockport](/areas/stockport)[Poynton](/areas/poynton)[Bramhall](/areas/bramhall)[Cheadle Hulme](/areas/cheadle-hulme)[Marple](/areas/marple)[High Lane](/areas/high-lane)[Sale](/areas/sale)[Didsbury](/areas/didsbury)[Offerton](/areas/offerton)[Woodley](/areas/woodley)[Bredbury](/areas/bredbury)[Romiley](/areas/romiley)[Davenport](/areas/davenport)[Heaviley](/areas/heaviley)[Gatley](/areas/gatley)[Cheadle](/areas/cheadle)[Disley](/areas/disley)[Handforth](/areas/handforth)[The Heatons](/areas/the-heatons) [Reviews](/reviews) [Contact](/contact) [Call the engineer 07442 536165 ](tel:+447442536165)[Book in now](/contact) ![Boiler heat exchanger cleaned and combustion-tested after a full service by Swainson Gas Services](/__l5e/assets-v1/a0d9a125-d950-4f9c-9d51-2d3f16654c7b/swainson-gas-services-boiler-servicing-heat-exchanger-after-01.jpg) [Home](/)[Services](/services)Boiler Servicing Boiler Servicing # Boiler Servicing in Stockport Done Properly, Once a Year, By The Same Engineer. Manufacturer-spec strip-down and clean, full combustion analysis, and a plain-English report, so your boiler runs efficiently, safely, and doesn't cost you a fortune the day it decides to fail on a February morning. [Book a service or repair](/contact) [Call 07442 536165](tel:+447442536165) **5.0** Google (36) Gas Safe #9663 Same-week appointments · 500+ ongoing maintenance customers From £98 inc. VAT Gas Safe registered #9663 Family-run since 1986 12-month workmanship guarantee 5.0 ★ Google (36 reviews) What we do ## Boiler Servicing, done properly. A boiler service is the single most important thing you can do to keep your heating cheap to run, safe to live with, and covered under warranty. Swainson Gas Services has been servicing boilers across Stockport and the surrounding areas since 1986, first with Alan, now with his son John, and every service on this website is carried out personally, not sub-contracted, not rushed, not diluted. What it is A proper annual service is a full manufacturer-spec inspection: casing off, combustion chamber inspected, burner and heat exchanger cleaned, all seals and injectors checked, gas pressure and flow measured under load, and the flue tested with a calibrated flue gas analyser. You get a written record for your files, your warranty, and any future landlord or sale checks. Who it's for Homeowners keeping a manufacturer warranty valid, landlords running gas appliances in let properties, buyers who've just moved in and want to know what they've inherited, and anyone who has noticed the boiler getting louder, slower to fire, or costlier to run over the last twelve months. When you need it Once every 12 months for gas boilers is the manufacturer's baseline, miss it and most warranties (Worcester, Vaillant, Ideal, Baxi) can be voided. The best window is late summer through early autumn, before the heating goes on for real and before the winter breakdown queue builds up. Why it matters A DIY 'once-over' or a 20-minute drive-by service isn't the same job. A boiler burning slightly rich for a year quietly wastes gas, sootens the heat exchanger, and shortens the appliance's life by years, and none of that is visible from the front panel. A proper service pays for itself in gas savings and avoided breakdowns, usually within the first winter. Book a service or repair ### Speak directly to the engineer. from £98 inc. VAT Recent work ## Real jobs, real results. Photographs from recent boiler servicing work carried out by John across Stockport and the surrounding areas. ![Boiler heat exchanger heavily sooted before a full service by Swainson Gas Services](/__l5e/assets-v1/fa25bcfa-960f-4fe5-9109-3777dcd2321d/swainson-gas-services-boiler-servicing-heat-exchanger-before-01.jpg) ![Same heat exchanger cleaned and combustion-tested after a full service in Stockport](/__l5e/assets-v1/a0d9a125-d950-4f9c-9d51-2d3f16654c7b/swainson-gas-services-boiler-servicing-heat-exchanger-after-01.jpg) ![Burner assembly fouled with combustion debris before annual service](/__l5e/assets-v1/344d7897-b45d-48a8-bed3-b644422ff42a/swainson-gas-services-boiler-servicing-burner-assembly-before-01.jpg) ![Burner assembly stripped and cleaned by John Swainson after service](/__l5e/assets-v1/cb8bdefe-e670-4bdc-8d1d-acb106e3e60a/swainson-gas-services-boiler-servicing-burner-assembly-after-01.jpg) What happens if it's ignored ## The cost of putting it off. Skipping a boiler service is one of those decisions that costs nothing today and a great deal later. Here's what typically goes wrong when a boiler is left un-serviced beyond the manufacturer's schedule. ### Warranty voided at the worst moment Most manufacturer warranties are conditional on an annual service being logged. Miss one year and a heat exchanger replacement, a £700–£1,200 job, is suddenly out of pocket. ### Rising gas bills A poorly-tuned boiler can burn 10–15% more gas for the same amount of heat. Over a Stockport winter that's easily £150–£250 quietly leaving the building through the flue. ### Sooted heat exchanger Combustion residue builds up on the heat exchanger. Once it's baked on hard, cleaning alone doesn't save it, and the exchanger is the most expensive single part of the boiler. ### Carbon monoxide risk A blocked flue, cracked seal, or partially blocked burner can push flue gases back into the property. This is the reason gas engineers exist and the reason services are non-negotiable in let properties. Common mistakes we see - Booking a 'boiler service' that turns out to be a 15-minute visual check with no combustion analysis. - Letting the service lapse for two winters and only booking when the boiler stops working, by then it's a repair, not a service. - Assuming a new boiler doesn't need servicing in year one. Skip year one and the warranty clock resets against you. Our process ## A clear five-step system. No guessing, no meter-running. Every job follows the same repeatable process, that's how the result stays consistent. 1. 01 ### Inspection Casing off, controls checked, flue and terminal position confirmed, gas tightness tested at the meter. 2. 02 ### Strip-down and clean Burner, injectors and heat exchanger cleaned to manufacturer spec. Condensate trap flushed. Seals inspected. 3. 03 ### Combustion analysis Flue gas analyser used under low and high fire to confirm the boiler is burning cleanly and within tolerance. 4. 04 ### Performance verification Gas pressure and flow measured, expansion vessel checked and re-pressurised if needed, safety devices tested. 5. 05 ### Report & guarantee Written service record for your warranty and records, plain-English summary of anything worth watching, 12-month workmanship guarantee. Why it's worth doing ## What you actually get. ### Lower gas bills A properly tuned burner burns less gas for the same heat. Most services pay back inside a winter. ### Warranty stays valid Annual service logged means the manufacturer can't refuse a claim on a technicality. ### Longer boiler life Boilers looked after annually routinely last 12–15 years. Neglected ones start failing at 7–8. ### Fewer winter breakdowns Most 'random' breakdowns are traceable to something a service would have caught in the summer. ### Safety on record Flue tested, seals checked, CO risk verified, with a written record you can hand to a landlord, insurer, or buyer. ### One point of contact The engineer who services your boiler is the same one who'll come out if it ever breaks down. No call centre. In depth ## The detail that matters. Not all boiler services are the same job. Which service your appliance needs depends on the boiler type, its age, how it's been looked after, and what the manufacturer's schedule calls for. ### Basic vs full service A basic service (from £98 inc. VAT) covers combustion analysis, visual inspection, and the checks required to keep a healthy boiler ticking over. A full service (£155 + parts inc. VAT) adds a full strip-down and clean of the burner, injectors and heat exchanger, the right choice for boilers over five years old, boilers that haven't been serviced for a while, or boilers showing any efficiency drop. ### Combi, system and regular boilers Combi boilers heat water on demand and are the most common installation in Stockport terraces and semis. System and regular (heat-only) boilers work with a hot water cylinder and are common in larger properties and older heating systems. Each type has different points of wear, combis stress the plate heat exchanger; system boilers depend on a healthy pump and expansion vessel. Servicing accounts for the difference. ### Brands covered Worcester Bosch, Vaillant, Glow-worm, Ideal, Baxi, Main and Potterton, all covered as standard, with genuine parts fitted where the manufacturer specifies them. Older brands and legacy models are also covered; parts availability is discussed honestly before we start. ### Landlord servicing vs homeowner servicing Landlord services are typically combined with a CP12 gas safety check on the same visit to save time and money. Homeowner services can be scheduled around the household and are usually booked into the summer/autumn service window when the diary is quieter. FAQs ## Questions we hear every week. If you have a question that isn't answered here, ring John directly on 07442 536165. ### How much does a boiler service cost? ### How long does a boiler service take? ### Do I need to service a new boiler? ### Do you cover my boiler brand? ### Will you leave a written service record? ### Can you service my boiler and do a landlord CP12 in one visit? ### How do I pay? ### How quickly can you fit me in? Related services ## Often booked together. [All services](/services) [ Boiler Servicing & Maintenance Combi Boiler Servicing Learn more → ](/services/combi-boiler-servicing)[ Boiler Repairs & Breakdowns Boiler Repairs & Breakdowns Learn more → ](/services/boiler-repairs)[ Boiler Servicing & Maintenance Central Heating Maintenance Contracts Learn more → ](/services/central-heating-maintenance-contract)[ Gas Safety Checks Landlord Gas Safety Checks (CP12) Learn more → ](/services/landlord-gas-safety-check) ![Swainson Gas Services vehicles ready for calls across Stockport and Hazel Grove](/__l5e/assets-v1/160943dc-12df-4f98-9e74-b100ef4b83cc/swainson-gas-services-service-vehicles-fleet.jpg) Ready when you are ## Boiler due a service? Book the engineer, not a call centre. Every service is carried out personally by John Swainson. Same-week appointments across Stockport. [Book a service or repair](/contact) [07442 536165](tel:+447442536165) Gas Safe #9663 · 12-month workmanship guarantee · Card on the job ![Swainson Gas Services](/__l5e/assets-v1/2f3afd23-ed83-4d5d-a90b-6d75c9544dc3/swainson-logo.png) Swainson Gas Services Family run · Est. 1986 Stockport's trusted boiler repair, servicing and gas safety specialists. Nearly 40 years on the tools, one engineer, one standard. Gas Safe Registered Registration No. 9663 Services - [Boiler Repairs](/services/boiler-repairs) - [Boiler Servicing](/services/boiler-servicing) - [Landlord Gas Safety Check](/services/landlord-gas-safety-check) - [Emergency Boiler Callouts](/services/emergency-boiler-callouts) - [Central Heating Maintenance](/services/central-heating-maintenance-contract) Areas covered - [Hazel Grove](/areas/hazel-grove) - [Stockport](/areas/stockport) - [Poynton](/areas/poynton) - [Bramhall](/areas/bramhall) - [Cheadle Hulme](/areas/cheadle-hulme) - [Marple](/areas/marple) - [High Lane](/areas/high-lane) - [Sale](/areas/sale) - [Didsbury](/areas/didsbury) - [Offerton](/areas/offerton) - [Woodley](/areas/woodley) - [Bredbury](/areas/bredbury) - [Romiley](/areas/romiley) - [Davenport](/areas/davenport) - [Heaviley](/areas/heaviley) - [Gatley](/areas/gatley) - [Cheadle](/areas/cheadle) - [Disley](/areas/disley) - [Handforth](/areas/handforth) - [The Heatons](/areas/the-heatons) [See all areas & services →](/areas-we-cover) Contact - [07442 536165](tel:+447442536165) - [info@swainsongas.co.uk](mailto:info@swainsongas.co.uk) - Based in Stockport - 7 days a week, 7 AM – 6 PM [](https://www.facebook.com/people/Swainson-Gas-Services/61563360904402/)[](https://www.instagram.com/swainsongas/)[](https://x.com/swainsongas) © 2026 Swainson Gas Services Ltd. Company No. 06431538. All rights reserved. [Privacy Policy](/privacy-policy)[Terms & Conditions](/terms-conditions)[Cookie Policy](/cookie-policy)[5.0 on Google (36 reviews)](https://www.google.com/maps/place/Swainson+Gas+Services+Ltd/data=!4m2!3m1!1s0x0:0x6719107ad0de590a?sa=X&ved=1t:2428&ictx=111) [Call 07442 536165](tel:+447442536165) [Book now](/contact) We use essential cookies to run this site, and optional ones for our chat widget. See our [Cookie Policy](/cookie-policy). AcceptReject