System-wide diagnosis
The boiler, controls and heating circuit can be considered together rather than treating one symptom in isolation.
Central heating repairs
Cold radiators and uneven heating, properly investigated.
Not every heating problem starts with the boiler. Get practical help with radiators, controls, valves, pressure and circulation issues affecting comfort around your home.
Gas Safe registeredRegistration 633795
Where we can help
Heating problems we can help investigate
Start with the symptoms. A proper check is the reliable way to find the cause and avoid replacing parts on guesswork.
01Radiators staying cold or only warming at the top
02Some rooms heating more slowly than others
03Faulty valves, thermostats or heating controls
04Pressure or circulation problems
05Noisy pipework or radiators
06Heating that does not respond as expected
The RP approach
Look at the whole heating system
Professional heating work should leave you clearer about your system—not more confused by it.
Practical fixes
The aim is reliable, balanced heating—not simply a short-term reset that leaves the cause unclear.
Clear recommendations
Where more work is needed, the reason and sensible next step are explained before proceeding.
What happens next
A simple, clear process
From the first call to the agreed work, the aim is to keep the next step easy to understand.
- 01
Describe the pattern
Tell us which rooms or radiators are affected and when the issue occurs.
- 02
Check the system
Relevant controls, pressure, radiators and circulation are investigated.
- 03
Restore reliable heating
The repair or recommended follow-on work is agreed based on what has been found.
Useful to know
Central heating repairs questions
Clear answers before you book.
Why are some radiators hot and others cold?
Possible causes include trapped air, valve problems, system balance, circulation issues or a build-up within the system. An inspection is the best way to identify the cause.
Can you help with heating controls?
Yes. Describe the thermostat, timer or control issue when booking so the right checks can be planned.
Does a cold radiator always mean the boiler is faulty?
No. The boiler may be working while a valve, control, circulation or radiator issue prevents heat reaching part of the system.
Other services
More heating support
Explore the rest of the boiler and central heating services available across the coverage area.
01Boiler repairs
No heating? Get the fault properly diagnosed.
Gas Safe boiler fault finding and repairs across Lewisham, Deptford, Bexley, Bromley, Southwark, Lambeth and nearby Kent.
Explore boiler repairs
02Boiler servicing
Keep your boiler safe, reliable and ready for winter.
Book an annual boiler service with a Gas Safe registered heating engineer across South East London and nearby Kent.
Explore boiler servicing
03Boiler installation
A replacement boiler planned around your home.
Clear advice and careful replacement boiler installation for homes across South East London and nearby Kent.
Explore boiler installationSpeak to a local engineer
Need help with central heating repairs?
Call with your postcode and a quick description of the problem. You will get a clear, practical next step.