Wall-mounted combi boiler with neat copper pipework installed by a Gas Safe engineer

Boiler Servicing

Annual Boiler ServicingThat Keeps Your Boiler Safe,Efficient and Under Warranty

A full Gas Safe service in under an hour, protect your manufacturer warranty, cut your energy bills and avoid the breakdown call-out before it happens.

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Trusted by hundreds of homeowners and landlords across East London & Essex.

Gas Safe Registered 20+ Years Experience Punctuality Guaranteed Up to 10-Year Warranty on New Boilers

Service Overview

What it is.
Who it's for.
Why it matters.

What it is

A boiler service is a structured safety and efficiency inspection carried out by a Gas Safe registered engineer. We strip down the key components, clean what needs cleaning, test gas pressure and flue gases, and issue a service record that protects your warranty.

Who it's for

Every homeowner with a gas boiler, particularly anyone on a manufacturer warranty (most require annual servicing to remain valid), landlords meeting CP12 obligations, and households running older systems that need a closer eye each year.

When you need it

Once every twelve months, ideally before winter. If you've moved into a property without service records, if your boiler is over five years old, or if you've noticed odd noises, fluctuating pressure or rising gas bills, book sooner.

Why professional matters

An untouched boiler quietly loses efficiency, voids its warranty, and turns small faults into £400 breakdowns. A proper service catches worn seals, sooted heat exchangers and unsafe combustion before they become a cold house at Christmas, or a carbon monoxide risk.

What Happens If You Leave It

The cost of doing nothing
is always higher than acting.

Voided warranty

Most manufacturers require documented annual servicing. Miss one, and a £1,200 part becomes your problem instead of theirs.

Carbon monoxide risk

Blocked flues, cracked heat exchangers and poor combustion produce odourless CO. A service includes flue gas analysis specifically to catch this.

Rising energy bills

A boiler running 8% less efficient adds roughly £120 to a typical annual gas bill. Servicing recovers that loss in a single visit.

Sudden winter breakdown

Most boiler failures are preventable. Worn seals, sticking valves and dirty sensors give weeks of warning if anyone is looking.

Our Process

A clear, step-by-step system.

No surprises, no shortcuts, the same proven workflow on every job.

Pre-check & paperwork

We confirm the boiler model, log the last service date and check installation records before any covers come off.

Visual & component inspection

Casing off, we inspect the heat exchanger, burner, electrodes, fan, condensate trap, expansion vessel and seals.

Combustion & gas pressure analysis

Calibrated flue gas analyser readings, working gas pressure test, and standing pressure check, all logged.

Clean, adjust & reassemble

We clean the condensate trap, check the magnetic filter, top up system pressure and reassemble to the manufacturer's torque specs.

Test, certify & advise

Full cycle test, written service record issued and a plain-English summary of anything that needs watching.

The Benefits

Why the right engineer
changes the outcome.

Warranty protected

Manufacturer-compliant service record issued on every visit, your cover stays valid.

Up to 12% more efficient

Clean components and correct gas pressure mean your boiler burns less to heat the same home.

CO-safe for your family

Flue gas analysis catches dangerous combustion before it becomes a hospital visit.

Breakdowns spotted early

Pre-empt failures while parts are cheap and the boiler still works, no emergency premium.

Lower carbon footprint

An efficient boiler burns less gas. Better for your bill, better for the planet.

Done in under an hour

Most services are completed in 45–60 minutes with minimal disruption to your day.

The Detail

What we'd tell a friend before they booked.

A boiler service is not a quick visual check. Done properly, it follows the manufacturer's published service schedule for that specific make and model: Worcester Bosch, Vaillant, Ideal, Baxi, Viessmann, Glow-worm, Potterton, Alpha, Main and ATAG all have distinct procedures, torque settings and replacement-interval parts.

What a Gas Safe boiler service actually covers

Every service we carry out includes: visual integrity check of casing, flue and gas pipework; removal of the burner and combustion cover; inspection and cleaning of the heat exchanger, injectors and electrodes; condensate trap clean-out and refill; expansion vessel pre-charge pressure test; pump and diverter valve operation check; safety interlock test; flue gas combustion analysis using a calibrated analyser; working and standing gas pressure tests; and a benchmark service record entry. Combi, system and regular (heat-only) boilers each have specific additions: hot water flow test on combis, cylinder thermostat check on system boilers, F&E tank inspection on regulars.

Combi vs system vs regular boilers, what's different

Combi boilers (a single unit producing both heat and hot water on demand) make up the majority of UK installs. They have more internal components (plate heat exchanger, flow turbine, three-way diverter) and need slightly more thorough servicing as a result.

System boilers feed a separate unvented cylinder and require an annual cylinder discharge and expansion vessel check as part of any responsible service. Regular (heat-only) boilers, found in older properties with a cold water tank in the loft, need feed-and-expansion tank inspection and ball-valve servicing alongside the boiler itself.

We service all three at the same fixed price.

What an annual service actually costs

Our annual boiler service is priced from £100 + VAT and covers the full manufacturer-compliant inspection, clean and flue-gas analysis. The cost of any seals required is added on top.

CP12 landlord certificate bundled with the service is priced from £130 + VAT combined. Every price is fixed and confirmed in writing before we arrive.

Landlord servicing & the CP12 link

A landlord gas safety certificate (CP12) is a separate legal requirement, but it makes commercial sense to bundle it with the annual service. We carry out both on the same visit, on the same paperwork, with one engineer, in the same hour.

Letting agents and managed-portfolio landlords across East London and Essex use us for exactly this reason.

Pricing

Priced from, fixed in writing before we arrive.

Indicative starting prices for boiler servicing. You'll always get a written, fixed-price quote before any work starts.

Service	Priced from
Annual boiler service Plus the cost of any seals if required	£100 + VAT
Combined CP12 + annual boiler service	£130 + VAT

All prices are priced from figures (ex. VAT) and may vary depending on location, access and current workload. Final fixed price quoted in writing before any work begins.

Service plans

Boiler Service Plans, priced from £12 / month.

Prefer to spread the cost and lock in priority service? Our Boiler Service Plans bundle your annual service (and CP12 where applicable) with priority call-outs and discounts on parts, labour and new installs, paid monthly by Direct Debit.

Standard Plan

From £12 / month

Annual service covered, priority when you need us.

Annual boiler service included
Priority service & call-outs
1 free call-out per year
5% labour discount
5% off a new boiler installation
5% off powerflush
5% off unvented cylinder replacement

Service Plan

From £23 / month

Annual service plus CP12 and unlimited call-outs.

Annual boiler service included
Landlord gas safety certificate (CP12) included
Priority service & call-outs
Free call-outs included
20% parts discount
Labour discount included
10% off a new boiler installation
20% off powerflush
20% off hot water & central heating controls
10% off unvented cylinder replacement

Service Plan Premium

From £35 / month

Full cover for boiler, controls, pipework and cylinder.

Everything in the Service Plan
Thermostatic radiator valves covered
Hot water & central heating controls covered
Gas pipework covered
Heating pipework covered
Hot water cylinder covered
1 powerflush every 5 years included
20% off a new boiler installation
20% off unvented cylinder replacement

Add-ons: Unvented cylinder service add-on — From £7 / month + VAT.

All plans are 'priced from' figures paid monthly by Direct Debit. Final monthly price depends on boiler type, age, location and property setup, and is confirmed in writing before the plan starts. Prices may vary with location and workload.

FAQ

Boiler Servicing
questions, answered.

The questions we hear most from boiler servicing customers across East London and Essex, with straight answers from a Gas Safe engineer, not a marketing brochure.

Can't see your question? Call us on 0208 050 1788.

How much does a boiler service cost?+

Priced from £100 + VAT for a standard combi, system or regular boiler service across East London and Essex, plus the cost of any seals if required. Combined CP12 + service is priced from £130 + VAT. Prices may vary with location and workload, and are fixed in writing before we start.

How long does a boiler service take?+

Most services take 45–60 minutes. Older boilers or systems with significant build-up may take longer, we'll flag this before starting if so.

Do you cover my area for boiler servicing?+

Yes, we service boilers across Waltham Abbey, Chingford, Loughton, Cheshunt, Enfield, Harlow, Epping and the wider East London and Essex region as standard.

Will servicing void my manufacturer warranty?+

The opposite, having an annual service carried out by a Gas Safe registered engineer is what keeps your warranty valid. We issue a manufacturer-compliant service record on every visit.

What's the difference between a boiler service and a boiler check?+

A 'check' is typically just a visual and a fault-code read. A full service includes combustion analysis, component cleaning, gas pressure testing and a written record, and is what your warranty actually requires.

Do you offer same-day or weekend servicing?+

Yes. We hold same-week slots back for service bookings, and offer Saturday morning appointments at no extra cost. Emergencies are 24/7.

Should I service a brand-new boiler in its first year?+

Yes. Every major manufacturer requires the first annual service to be carried out within 12 months of installation, miss it and the warranty lapses.

How often should a boiler be serviced?+

Once every 12 months. Set a reminder, or sign up to one of our Boiler Service Plans and we'll handle it for you.

Do you offer a monthly boiler service plan?+

Yes. Our Boiler Service Plans start from £12 / month and bundle your annual service with priority call-outs and discounts on parts, labour and new installs. The Service Plan (priced from £23 / month) adds a landlord CP12 and free call-outs, and the Service Plan Premium (priced from £35 / month) covers controls, pipework and cylinder too. Final monthly price is confirmed in writing before the plan starts and may vary with location and workload.

Related Services

Pair this with

Service Areas

Boiler Servicing across

East London Essex Waltham Abbey Chingford Loughton Cheshunt Enfield Harlow Epping

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Fixed price, Gas Safe registered, warranty-protecting. Most appointments available within the week.

Gas Safe & F-Gas Registered · Fully Insured · 12-Month Workmanship Guarantee