24/7 emergency service
Warm rooms, quiet pipes, controls that work.
Cold radiators, banging pipes and thermostats that ignore you all have fixable causes. We repair, upgrade and install central heating systems across London.
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Quick answer
Radiators that are cold at the top usually need bleeding; radiators cold at the bottom or in patches usually point to sludge, which a power flush clears. If several radiators stay cold, check the boiler pressure and pump. Call 07718 185128 for a central heating repair in London.
When to call
Signs you need help with central heating
- Radiators cold at the top, bottom or in patches
- Some rooms warm, others cold
- Banging, ticking or gurgling pipes
- Thermostat or programmer not responding
- Leaking radiator valves
Our process
How we fix it
- 01
Check
Pressure, pump, valves and controls are checked across the system.
- 02
Fix
The faulty radiator, valve, pump or control is repaired or replaced.
- 03
Balance
The system is bled and balanced so every room heats evenly.
- 04
Advise
We recommend inhibitor, a filter or a power flush if the water is dirty.
Why us
What you can expect
Whole-system view
We look at the boiler, pump, valves and controls together — not one radiator in isolation.
Repair or upgrade
Honest advice on whether to repair, replace a part or upgrade your controls.
Neat installs
New radiators and systems fitted level, leak-free and balanced.
What this service covers
- Radiator repair and replacement
- Radiator installation
- Central heating installation
- Heating pumps
- Thermostats and controls
- Underfloor heating
FAQs
Central heating & radiators: your questions answered
Why is my radiator cold at the top?
Air has collected at the top of the radiator. Turn the heating off, open the bleed valve with a radiator key until water appears, close it, then check the boiler pressure and top up if needed.
Why is my radiator cold at the bottom?
Sludge — a mix of rust and debris — settles in the bottom of the radiator and blocks the flow. A power flush or a radiator flush usually fixes it.
Do you install underfloor heating?
Yes, we install and repair wet underfloor heating as part of our central heating service. We will check your existing system can support it first.
Related services
Helpful advice
Central heating? Call us now.
Call us any time, day or night. We will tell you the price band for when you need us and how soon an engineer can be there.