Heating Services.
Boiler repairs, servicing, central heating and radiators by Gas Safe engineers.
Launching 2026 — Register Your Interest
This service is launching soon across London & Surrey. Leave your details and we will contact you the moment it goes live — priority booking, no obligation.
Expert Heating Engineers
When your heating fails you want it back fast and done safely. Our Gas Safe registered heating engineers diagnose and repair boilers, central heating and hot water systems across London and Surrey — and service them to keep them running reliably.
We quote a transparent hourly rate with no call-out fee, explain exactly what's wrong before we fix it, and take card on completion. No vague estimates, no surprises.
What Our Heating Engineers Do
The full breadth of heating work we carry out across London and Surrey — in detail.
Boiler Repairs & Fault Finding
Lockouts, error codes, leaks and pressure loss — our Gas Safe registered engineers diagnose the actual fault before touching anything, explain it in plain English, and repair all major boiler brands. If a part has to be ordered, we tell you the cost and timescale straight away.
Annual Boiler Servicing & Plans
A yearly service keeps your boiler safe, efficient and inside its warranty terms. We check combustion, flue integrity, pressures and safety devices, and you can put servicing on an annual plan paid by monthly Direct Debit so it's never forgotten.
Central Heating Repairs & Upgrades
Cold zones, noisy pipework, failing pumps and stuck valves all point to a system that needs attention. We repair and upgrade central heating — pumps, motorised valves, cylinders and controls — so the whole system works as designed, not just the boiler.
Radiators & Heating Controls
We replace and relocate radiators, balance systems so every room heats evenly, and fit thermostatic valves and smart controls that actually cut bills. If one room never warms up, that's a diagnosable problem — not something to live with.
Power Flushing & System Health
Sludge is the silent killer of heating systems: cold radiator bottoms, kettling boilers and early pump failures. We power flush the system, add inhibitor and fit magnetic filters so the clean system stays clean.
Landlord Gas Safety & Compliance
We carry out landlord gas safety inspections (CP12) across London and Surrey, servicing the boiler in the same visit where wanted. Certificates are issued promptly and we can deal directly with tenants and agents to arrange access.
Heating Jobs We Cover
Equipped to handle everything from routine maintenance to complete installations.
Emergency Heating
We prioritise emergencies and aim to be with you within the hour. If you're dealing with any of the following issues, call us immediately for a fast response.
Call 020 3582 3455- No heating or hot water
- Boiler leaking or losing pressure
- Suspected gas safety issues
- Frozen or burst condensate pipes
How It Works
From first call to 12-month guarantee — how every heating job runs.
Describe The Fault
Tell us the symptoms and any error code on the display. We confirm the hourly rate, prioritise no-heat and gas-safety calls, and give you a realistic arrival window.
Diagnose Safely
A Gas Safe registered engineer tests the system properly and explains what's wrong, what it costs to fix, and whether repair genuinely beats replacement — honestly.
Repair Or Install
Most repairs are completed on the spot with parts from the van. Parts are supplied at trade price plus 30%, and anything ordered is fitted as soon as it lands.
Test, Certify & Guarantee
Every job ends with full safety checks and any required certification, card payment on completion, and a 12-month guarantee on the workmanship.
Why Choose CS Services
- All gas work carried out by Gas Safe registered engineers — no exceptions.
- Honest repair-versus-replace advice based on the boiler's age, efficiency and fault.
- We work on all major boiler brands and system types.
- Annual service plans paid by monthly Direct Debit, so servicing never slips.
- No call-out fee and a clear hourly rate, billed in 15-minute increments after the first hour.
- 12-month guarantee on all heating workmanship.
Common Heating Problems We Fix
Sound familiar? Here's what's usually behind it — and how we put it right.
"My boiler keeps losing pressure and I have to top it up"
A system that needs regular topping up is leaking somewhere — a weeping radiator valve, a failed expansion vessel or a pinhole in hidden pipework. We pressure-test to find the escape route and fix the cause, rather than leaving you refilling the loop every week.
"Some radiators are cold at the bottom or won't heat up at all"
Cold at the bottom means sludge; cold at the top means air; one dead radiator is usually a stuck valve or a system that needs balancing. We diagnose which it is, then flush, bleed, free off or rebalance so every room actually reaches temperature.
"The heating works but there's no hot water — or the other way round"
On most combi and system boilers that points to a failing diverter valve or motorised valve rather than a dead boiler. It's a well-understood repair that costs a fraction of a replacement, and we'll tell you honestly if the boiler is worth saving.
"My boiler is making a rumbling or kettling noise"
Kettling is scale or sludge boiling water in the heat exchanger — hard water around London and Surrey makes it common. Caught early, a chemical clean or system flush usually silences it and extends the boiler's life; left alone, it kills heat exchangers.
From £110/hr + VAT
Launching 2026 — register your interest above.
12-Month Guarantee
All workmanship fully guaranteed.
Frequently Asked Questions
Everything you need to know about our heating services.
Guides & Advice
Practical tips from our engineers — maintenance advice, cost guides and how to handle problems before they grow. A new article is published every day.