About us
Built for compliance that can't slip
Boiler Service London exists for the paperwork that actually protects you — a warranty that stays valid, a Gas Safety Certificate that never lapses, a service history you can put in front of a surveyor or a tenant. We built the company around fully Gas Safe registered engineers and a quote confirmed before anything is booked.
What we do in London
We service London boilers properly — full manufacturer checklist, combustion analysis and safety device testing on every visit, with a written record handed over before the engineer leaves.
Around that core sit the jobs landlords and homeowners actually need: Gas Safety Certificates (CP12) for rented properties, service plans that schedule renewals automatically, and whole-system health checks when the issue is bigger than the boiler alone.
We cover all 33 London boroughs. Not as a slogan — the borough pages describe the housing stock we typically encounter in each area, because knowing that before we arrive is part of the job.
What we promise
- Quote confirmed before we book anything
- Fully Gas Safe registered engineers, always
- Full manufacturer checklist, every service
- Written record or certificate handed over on the day
- Renewal reminders so nothing lapses by accident
- Straight answers if a fault needs follow-up work
How we work
Fully Gas Safe registered, no exceptions
Every engineer working on a gas appliance holds current Gas Safe registration — the legal minimum, not a marketing claim.
One checklist, every visit
The manufacturer's service checklist is followed in full every time, not shortened to save time on a busy day.
Quoted before we book, not after
Boiler make, model and access are confirmed before any price is agreed — no surprise adjustment once the engineer is on site.
Paperwork that earns its keep
Every visit produces a written service record or a completed Gas Safety Certificate, useful for your warranty, your tenants, or your own records.
What we cover
The services that keep a boiler compliant
Annual boiler service
Full internal inspection, combustion analysis and safety device testing, following the manufacturer's checklist.
Landlord Gas Safety Certificate
Every gas appliance covered by your landlord obligations checked and certified, with the certificate issued the same visit.
Boiler service plan
Your annual service scheduled automatically, with optional call-out cover on top.
Central heating health check
Radiators, controls and system pressure checked as a whole, not just the boiler itself.
From booking to a written record
01
Tell us about your boiler
Make, model, roughly how old it is, and where it's located. We use that to give an accurate quote and realistic appointment window.
02
Confirm the quote before booking
The price is agreed on the phone or in writing before anything is scheduled — no surprise adjustment once the engineer arrives.
03
Full checklist on site
The engineer works through the manufacturer's checklist: internal components, flue, ventilation, combustion and safety devices.
04
Written record, explained honestly
You get a written service record or certificate. If anything needs attention, it's explained plainly and quoted separately.
About BSL — FAQs
Are your engineers actually Gas Safe registered?
Yes — every engineer we send is fully Gas Safe registered, which is the legal requirement for anyone working on gas appliances in the UK. Ask to see their ID card on any visit, from us or anyone else.
Do you cover all of London?
Yes — all 33 Greater London boroughs. See our areas hub for local pages, or contact Boiler Service London with your boiler's details for a quote.
What happens if a fault is found during a service?
It's explained plainly, with a separate quote for any follow-up work. We never bundle unexpected repairs into the original service price without agreeing it with you first.
Do you offer landlord Gas Safety Certificates?
Yes — CP12 inspections covering every gas appliance in the property, with the certificate issued the same visit and a reminder set ahead of the 12-month renewal.
How do you price a job?
Boiler make, model and access all affect the price, so we confirm a quote before booking rather than applying a flat rate. See the pricing page for the current structure.
Don't let it lapse
Get in touch for a quote and a realistic appointment window — full checklist, written record, every visit.