Gas & LPG boiler servicing across Sittingbourne, Sheerness & Canterbury
An annual service by a Gas Safe registered engineer keeps your boiler safe, efficient and in warranty. Fixed prices, all makes and models, natural gas and LPG.

Why get your gas or LPG boiler serviced?
Sterling Heat are Gas Safe registered gas boiler specialists serving Sittingbourne, Sheerness, Swale and Canterbury. We recommend a service once a year. Our engineers carry out a thorough assessment of the boiler, fix any problems or potential problems they find, and leave you with a written record.
Efficiency and lower gas bills
Dirt, scale and drift in the settings all make a boiler burn more gas for the same heat. A service restores the combustion to how the manufacturer set it, which shows up on the bill.
Catching faults early
Worn seals, a tired fan bearing, a sticking diverter valve: each is a small job in September and a cold weekend in January. A service finds them first, avoids the breakdown and extends the boiler's life.
Carbon monoxide
The most important reason. Poor combustion, a damaged seal or a flue problem can produce carbon monoxide, which is invisible, odourless and dangerous. The flue gas analysis and the checks in a service are designed to catch it.
A company you can trust, with fixed prices
We are a trusted, family-run business that gives honest, professional service at a fair fixed price. No upselling, and a straight answer if something does need replacing.
- Visual inspectionBoiler, flue, pipework, condensate and the surrounding installation checked against the regulations.
- Flue gas analysisCombustion tested with a calibrated analyser for safe, efficient burning.
- Gas pressure and safety devicesWorking pressure, gas valve, flame supervision and safety cut-outs tested.
- Seals and casingCase seals and the combustion chamber checked for leaks.
- CleaningComponents cleaned as the manufacturer specifies, including the condensate trap.
- Controls and systemThermostats, programmer, pressure, expansion vessel and the filter checked.
- Service recordCompleted in the boiler log book for the manufacturer warranty.
- Landlord CP12 (optional)Gas Safety Record issued at the same visit for let properties.
Is your boiler due a service?
Tell the dial when it was last done and it tells you how long you have.
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What customers say
Rated 4.9 out of 5 on Google reviews. The quotes below are copied word for word from the public listing.
I have used Sterling Heat on few occasions: removing old system and installing new combi boiler, connecting radiators, pipework adjustments, gas hob installation. Always professional and very helpful! Very knowledgeable! Best in the area!
We’ve used Gary several times since buying our house 7yrs ago for small jobs. Now we need a new boiler we feel lucky to have someone we know and trust to do a good job at a fair price.
Gary is great at his job and takes time to make sure it is done to the highest standard. I completely renovated my house so needed heating and wet plumbing.
Questions people ask us
What does a gas boiler service include?
A visual inspection of the boiler, flue and pipework; a check of the case seals and the condensate; a flue gas analysis to confirm safe, efficient combustion; checks of the gas pressure and the safety devices; cleaning of the components the manufacturer specifies; and a check of the controls. The service record goes in the boiler log book.
Do I need a Gas Safe engineer?
By law, yes. Anyone working on a gas appliance in the UK must be on the Gas Safe Register. Ask to see the card: ours shows natural gas and LPG.
Can you do a landlord gas safety certificate (CP12) at the same time?
Yes. If you let the property we can carry out the annual Gas Safety Record on the same visit and issue the certificate for your tenants and records.
Why is carbon monoxide a concern?
A boiler with a damaged seal, a blocked flue or poor combustion can leak carbon monoxide, which you cannot see or smell. The flue gas analysis and seal checks in a service are there to catch exactly that. We also recommend a CO alarm in every room with a gas appliance.
How much is a gas boiler service?
We quote a fixed price when you book, and there are no extras unless a part is found to be faulty, which we would tell you about before doing anything. Call for the current price.
Book your gas boiler service
Fixed price, Gas Safe registered, Sittingbourne, Sheerness, Swale and Canterbury.
Book a gas or LPG boiler service
Tell us what you need and we will call you back, usually the same working day. No obligation, and we never pass your details on.
- info@sterling-heat.co.uk
- Hours
- Mon to Fri, 8am to 6pm
- Based in
- 40 Homewood Avenue, Sittingbourne, Kent ME10 1XW
- Covering
- Sittingbourne, Sheerness, Isle of Sheppey, Faversham, Canterbury and across Kent
Free quotes and site surveys for new boilers and full systems. For a breakdown, call: most problems are dealt with the same or next day.