About us
Built for the whole system, not just the boiler
Heating Services London exists because most heating problems aren't a boiler problem — they're a radiator that was never sized right, a system that's never been flushed, or controls stuck on a single schedule for the whole house. We built the company around fixing that.
What we do in London
We install and upgrade radiators, power flush systems clogged with sludge, fit wet underfloor heating, and install smart heating controls — all independent of who made your boiler.
Where the problem is genuinely widespread, we survey the whole system — pipework, pump, radiators and controls together — and rebalance it as one job, not a series of unrelated fixes.
We cover all 33 London boroughs. Not as a slogan — the borough pages describe the housing stock in each area, because knowing what we're likely to find before we arrive is part of the job.
What we promise
- Fixed, quote-only price agreed before any work starts
- A proper survey, not a guess over the phone
- Any boiler brand — this is about the system around it
- Straight answers if the issue turns out to be boiler-specific
- Clean, tidy work and a plain-English explanation of what was done
- No pressure to buy more than the room or system actually needs
How we work
Whole system, not just the boiler
We look at radiators, pipework, controls and balance together — the boiler badge on the wall is a detail, not the starting point.
A fixed quote before we start, not a guess
Every job is priced against a proper survey, agreed before any work begins — never an open-ended day rate that grows once the van is outside.
Fully Gas Safe registered engineers
Any work that touches a gas connection is carried out by fully Gas Safe registered engineers, as required by law.
Honest about what we do and don't do
We don't repair boilers — if that's the actual problem, we'll say so rather than take on work we're not the right fit for.
What we cover
The system, room by room
Radiator installation
Correctly sized radiators and TRVs, fitted and balanced into your existing system.
Power flushing
Clears sludge and rust from radiators and pipework, restoring even heat.
Underfloor heating
Wet systems for extensions and renovations, zoned against the rest of the house.
Smart heating controls
Zoned thermostats and smart TRVs, configured around how the house is used.
From enquiry to a confirmed fix
01
Tell us what's happening
A cold room, an ageing system, or a renovation that needs specifying. We use that to scope the right service and book a survey.
02
Free survey, fixed quote
An engineer assesses the system properly and confirms a fixed price before any work starts — no hourly meter running.
03
The work, done properly
Radiators, power flush, underfloor heating or controls installed to the agreed scope, whatever the boiler brand.
04
Checked, not just finished
We check the whole system for even heat before considering the job done, not just the part we touched directly.
About HSL — FAQs
Do you cover all of London?
Yes — all 33 Greater London boroughs. See our areas hub for local pages, or contact us with your postcode to book a survey.
Do you repair or service boilers?
No. We focus on the heating system around the boiler — radiators, power flushing, underfloor heating, smart controls and whole-system balancing. Boiler-specific repairs and servicing sit outside what we do.
Are you Gas Safe registered?
Yes — our engineers are fully Gas Safe registered, which applies to any work touching a gas connection. Most of our core services — radiators, power flushing, underfloor heating, controls — are not gas work themselves.
How do you price jobs?
Quote-only: a fixed price agreed after a proper survey, before any work starts. See the pricing page for the current structure.
Is this urgent, emergency work?
No — radiators, power flushing, underfloor heating and controls are planned, considered work. There's no need to rush a decision before a survey.
Ready when you are — there's no need to rush
A free survey and a fixed quote, agreed before anything starts. This is planned work, done properly.