Annual Boiler Service in London
Fixed-price servicing for combi, system and conventional gas boilers across every London postcode — delivered by Gas Safe registered engineers and backed by a Which? Trusted Trader rating.
-
From £95 + VAT £80 + VAT for Club members -
Comprehensive 14-point annual boiler service checklist -
Same-week appointments, every London borough
What's included
- Fixed price — if we find a fault, we’ll provide a written quote
- 9-month workmanship warranty, extendable to 12 months when feedback is provided within 14 days.
£95
+ VAT £105Get an instant quote
Live availabilityEnter your postcode and we’ll confirm your fixed price + earliest engineer slot.
No. 952649
1762 Checkatrade reviews
1253 Trustpilot reviews
extendable to 12 months
What’s included in your annual boiler service
Every Serviceteam boiler service follows a structured Gas Safe service process based on manufacturer guidance and industry best practice. Your engineer spends 30–60 minutes on-site carrying out the following 14 checks before issuing your written service report.
How much does an annual boiler service cost in London?
The average cost of a one-off boiler service in London sits between £120 and £160. We charge £95 + VAT when you book online — with no surprise charges if a minor adjustment is needed during the visit.
Phone booking via 0208 059 8111.
- 14-point boiler service
- Written service report
- 9-month workmanship warranty, extendable to 12 months when feedback is provided within 14 days
Save £10 by booking online.
- Everything in Standard
- £10 online discount
- Same-week slots
- 30-min arrival window text
Annual membership — cancel any time.
- Everything in Online
- Priority booking slots
- Member discounts on repairs
Optional add-ons (booked at the same time)
There’s one occasion the price changes: if your property is inside the Congestion Charge or ULEZ zone and parking permits cannot be provided, the actual cost is added to the bill. We’ll always tell you before the visit.
One-off service or boiler cover — which is right for you?
Boiler cover plans bundle servicing with breakdown insurance and start at around £8/month. They make sense if your boiler is older, has had previous breakdowns, or you simply want predictable monthly costs. For most London homeowners with a boiler under 8 years old, a one-off annual service works out cheaper — and you keep the choice to switch engineer next year.
| Provider | First-year cost | Annual service | Repairs / parts | Contract |
|---|---|---|---|---|
Serviceteam — one-offThis page |
from £95 + VAT | ✓ Included | Pay-as-you-go | None |
Serviceteam ClubAnnual membership |
£80 + VAT/yr | ✓ Priority | Member discounts | Annual, cancel any time |
British Gas HomeCareCover plan |
£109 for non-members | ✓ Included | ✓ (excess applies) | 12-month rolling |
HomeServe Gas BoilerCover plan |
~£126/yr (~£10.50/mo) | ✓ Included | ✓ (excess applies) | Auto-renewing |
BOXT Service PlanService plan |
£8.99/mo for homeowners £11.99/mo for a landlord |
✓ Included | ✗ Service only | 12-month rolling |
Worcester Service PlanService plan |
from ~£90 - £125/yr | ✓ Included | ✓ (excess applies) | Annual |
Pricing accurate as of May 2026 and based on each provider’s lowest-tier plan. Excess charges and renewal increases vary by provider.
Combi, system or conventional — we service all three
Combi
The most common boiler in London. Heats water on demand directly from the mains — no separate cylinder or tank.
System
Common in larger homes and properties with multiple bathrooms. Heats water that’s stored in a separate cylinder.
Conventional
Older systems with both a hot water cylinder and a cold water tank in the loft. Common in period London properties.
Boiler brands we service in London
We service every major UK gas boiler brand. Click any brand to see our in-house engineer reviews, fault guides and pricing notes for that model range.
Main, Ferroli and Biasi also fully serviced — contact us for model-specific notes.
Why service your boiler every year?
Three reasons matter to most homeowners.
Carbon monoxide is silent
Carbon monoxide is colourless, odourless and deadly. An annual flue gas analysis is the only reliable way to confirm your boiler is burning fuel cleanly. Our service includes a calibrated CO/CO₂ test, a gas tightness check, and a full flue inspection — the three checks that catch the issues that matter.
3 calibrated safety testsSkip a year, lose your cover
Worcester Bosch, Vaillant, Ideal, Baxi and Viessmann all require an annual service by a Gas Safe registered engineer to keep manufacturer warranties valid. Skip a year and most warranties are void — which can mean a £400+ repair bill that should have been free. Our service report meets every major manufacturer’s warranty requirement.
Avoid £400+ repair bills10–15% lower running costs
A serviced boiler runs at its rated efficiency. Build-up in the heat exchanger and a misadjusted burner can quietly add 10–15% to your annual gas bill before the boiler shows any obvious symptom. For an average London household, that’s £80–£150/year of avoidable cost.
Save £80–£150/yr on gasWhat happens if we find a fault?
This is the question every homeowner thinks but rarely asks. Here’s the answer — straight.
Price starts from £95 + VAT
Final price may vary depending on the boiler and any additional work required.
Free written quote before any extra work
Nothing happens without your sign-off. No verbal-only quotes, no surprises.
Minor faults fixed on the same visit
Thermostats, sensors, pressure relief valves — usually sorted on the day if you accept the quote and we have the part on the van.
Manufacturer-warranty faults
We refer the issue back to the manufacturer at no cost to you, and help you book the warranty visit.
Beyond economic repair?
If the boiler can’t be fixed cost-effectively, we’ll quote a like-for-like replacement under our boiler installation service. No pressure to commit.
When should you book your boiler service?
The best window is May to September. Demand spikes from October as the first cold snap hits, and most London engineers are fully booked through November–February.
Booking in summer means
Faster appointments — often within the same week
Time to fix any faults before winter
Lower risk of a cold home in December with a 3-week wait
Easy property access if you’re a landlord with CP12 renewal due
Annual service + CP12 in a single visit
Under the Gas Safety (Installation and Use) Regulations 1998, every UK landlord has a legal duty to have all gas appliances at a tenanted property checked annually by a Gas Safe registered engineer, with a Gas Safety Record (CP12) issued to the tenant within 28 days.
We bundle the boiler service and CP12 in a single visit — saving a second engineer fee and one less interruption for the tenant.
£95 + VAT
£138 + VAT
Boiler service across every London postcode
Our Gas Safe engineers cover all 32 London boroughs and the City of London. Same-week appointments are standard.
See all London boroughs we cover
Central London
- City of London
- Westminster
- Camden
- Islington
- Kensington & Chelsea
North London
- Barnet
- Enfield
- Haringey
- Waltham Forest
- Hackney
East London
- Tower Hamlets
- Newham
- Redbridge
- Havering
- Barking & Dagenham
South-East London
- Greenwich
- Lewisham
- Bromley
- Bexley
- Southwark
South-West London
- Lambeth
- Wandsworth
- Merton
- Sutton
- Kingston-upon-Thames
- Richmond-upon-Thames
West London
- Hammersmith & Fulham
- Ealing
- Hounslow
- Hillingdon
- Brent
- Harrow
Common London-specific boiler issues we see
London’s housing stock is unique — and so are the boiler problems we deal with daily.
💧 Hard water scaling
Many London homes are in hard water areas, which can contribute to scale build-up in heating systems over time.
🏢 Flat conversions
Awkward boiler cupboards, restricted airflow, and shared communal flues in mansion blocks need experienced engineers — our team works in conversion stock daily.
🏛️ Listed buildings
Flue routing constraints and condensate pipe insulation requirements. We know the planning routes and what conservation officers will accept.
🏠 Older period properties
Pre-2005 conventional systems still common in Victorian and Edwardian terraces — we service legacy gas-fired conventional boilers most national operators won’t touch.
Meet some of your local Gas Safe engineers
Real names, real Gas Safe numbers, real experience working in London homes. No subcontractors, no agency cover.
What our customers say
Frequently asked questions
Still have a question? Our team is happy to help.
Ask a question →Book your London boiler service today
Same-week appointments. Fixed £95 + VAT. Gas Safe and Which? Trusted.
You may also need
CP12 Gas Safety Certificate
The certificate landlords legally need — issued the same visit when bundled with a service.
Learn more →
Boiler Installation London
Fixed-price replacement boilers from £1,895. Same Gas Safe team, 10-year warranties.
Learn more →
Boiler Repair London
Emergency repairs across London, same-day availability. No call-out fee on accepted quotes.
Learn more →£95