✓ AR Heating & Gas. Servicing the North East for over 16 years.

Boiler Servicing in
Chester le Street

Chester le Street is about 6 miles from our Houghton le Spring base. When we service your boiler you get the actual readings, gas rate and combustion, explained in plain words. From £80 + VAT across DH2 and DH3.
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AR Heating & Gas
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Due a boiler service in Chester le Street? From £80 plus VAT, booked in a couple of minutes. Call 0191 540 2051
16+
Years experience
£80
Services from
4.9★
Google rating
634641
Gas Safe registered
Boiler being serviced by a Gas Safe registered engineer

The readings you should get from a service

At the end of the visit you should know four things: how much gas the boiler is burning, whether it is burning it cleanly, whether the flue is sound from end to end, and whether the safety devices still cut in when they should. We give you all four, written down.

We also check the pressure in the expansion vessel, the seals, the system pressure and what the heating water looks like. In a lot of Chester le Street terraces the boiler now lives in the kitchen, with a condensate pipe running along an outside wall, so we look at that route too.

If something needs doing, you get a price and a choice. We never assume you have said yes.

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A service should give you numbers, not a signature

Plenty of people have paid for a boiler service that lasted ten minutes and ended with a sticker. That is a visual check, not a service. The two tests that matter are the gas rate, where we time the meter and compare the result with what the maker says the boiler should burn, and the flue gas analysis, where a probe in the flue shows whether combustion is right. Without them nobody can tell you the boiler is working properly. They can only tell you it is switched on.

The rest of the visit covers the burner, electrodes, heat exchanger and seals, the flue run including any boxed in sections, the condensate trap, and the safety devices. The whole list is on our boiler servicing page.

Kitchen boilers in the terraced streets

Near the town centre, many terraced houses had the boiler moved from a back room into the kitchen when the heating was updated. That usually leaves the condensate pipe with a long trip outside to find a drain. Thin plastic pipe on a cold wall is what freezes on a hard morning and locks the boiler out. At the service we look at the route, the pipe size and the lagging, and tell you if it is a risk and what it would cost to fix.

Mid century estates

On the estates built around the middle of the last century, heating layouts are usually simple and easy to get at. The service there is about spotting slow change: a gas rate drifting away from spec, an expansion vessel losing its charge, a seal starting to perish. None of it leaves you cold today. All of it will in time.

Newer builds

Newer houses in and around the town often have a boiler still under the maker's warranty. Worcester Bosch, Vaillant and Baxi all want a yearly Gas Safe service for that cover to hold, so the written record we leave you is worth keeping safe.

Landlords

If you let a property in DH2 or DH3, the annual gas safety record, the CP12, is a legal requirement. It is not the same as a service, but we can do both at the same appointment. See our landlord boiler service page.

Six things we test on every visit

Fifteen minutes and no gas rate test is not a service. Here is what we actually check.

📊
Gas rate
Timed at the meter and compared with the maker's figure, so you know the boiler is burning what it should.
💨
Combustion
An analyser in the flue reads the gases and shows whether the boiler is burning cleanly and safely.
🔍
Flue run
Followed along its length, boxed in parts included, looking for loose joints, damage and blockages.
🛡️
Safety cut outs
Each safety device made to operate, because these are what shut the boiler down if something goes wrong.
🌡️
Expansion vessel
Charge and system pressure checked. A flat vessel is behind a lot of winter pressure problems.
💧
Condensate pipe
Route, size and lagging assessed so a frozen pipe does not lock you out in January.
Boiler broken down, not just due a check?

A boiler that has stopped or keeps locking out needs a repair, not a service. Our fixed price diagnosis starts from £96 with a Gas Safe engineer, and no call out fee on top.

Go to boiler repairs

Chester le Street areas we service

We cover both Chester le Street postcodes, DH2 and DH3, at one price. It is about 6 miles from our base, so it counts as local work.

Postcodes: DH2 and DH3.

Neighbourhoods and villages: the town centre, Chester Moor, Newfield, Waldridge, Pelton, Pelton Fell, Sacriston, Kimblesworth, Ouston, Great Lumley and Birtley.

For other work in the town, see Boiler repairs, Out of hours cover if you have no heat now, or a New boiler installation if yours is at the end of its life.

Call 0191 540 2051 to book.

Chester le Street boiler service questions

Answers to what DH2 and DH3 customers ask us.

How can I tell whether I have had a proper service? +
Ask the engineer for the gas rate and the flue gas readings. If they cannot give you both, the boiler was looked at, not serviced. We write ours down and talk you through them.
What does a service cost in Chester le Street? +
From £80 + VAT for a standard gas boiler, anywhere in DH2 or DH3. Call 0191 540 2051 and we will confirm the price for your boiler before you book, so there is no surprise on the day.
My terraced house near the town centre has the boiler in the kitchen. Why does that matter? +
Because the condensate pipe usually has a long run outside to reach a drain, and that is the part that freezes in a cold snap. We check the route at the service and tell you whether it needs lagging or rerouting.
Is it worth servicing an older boiler in Pelton or Ouston? +
Usually, yes. The service tells you whether it is still safe and still burning to spec. It also gives you an honest idea of how much life is left, so if you do need a replacement you can plan for it rather than be caught out.
Do you cover Sacriston, Kimblesworth and Birtley? +
Yes. We cover every part of DH2 and DH3, including Sacriston, Kimblesworth, Birtley, Great Lumley and Chester Moor, at the same price as the town centre.
Can you do my landlord gas safety certificate at the same visit? +
Yes. The CP12 and the service are separate checks, but we can carry out both in one appointment so your tenant only has to be home once.
How long will the service take? +
Roughly an hour for a standard boiler. It takes longer if part of the flue is boxed in and needs opening up, or if we find something that needs a closer look.

Guides from our engineers

Short, plain reads on boilers, faults and heating.

What Is the Best Boiler for a North East Home? Buying a New Boiler
October 12, 2026
The best boiler is the one sized correctly for your house and fitted properly. Here is how the four brands we are ask...
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How Long Does a Boiler Service Take? And Every Other Job, Timed Boiler Servicing
October 12, 2026
A boiler service takes about an hour. A repair can be twenty minutes or two visits. A new boiler is a day. Here is wh...
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Boiler Brands
October 4, 2026
Vaillant vs Baxi boilers compared: model choice, installed price, reliability considerations and what really matters ...
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Book your Chester le Street boiler service

From £80 + VAT. Gas rate and combustion measured, the flue and condensate checked, and every reading explained. Nothing extra without your agreement.

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