Central Heating Fault Diagnosis in Tooting

Central heating fault diagnosis in Tooting for the problems nobody else could pin down. We test the whole system, boiler, controls, pump and pipework, and give you a clear written explanation of what is actually wrong.

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When the Boiler Is Not the Problem

Plenty of heating faults have nothing to do with the boiler. Wiring centres, motorised valves, thermostats and pumps all cause symptoms people blame on the boiler. Replacing the boiler will not fix any of them, so we test the whole system first.

Intermittent Faults That Come and Go

The hardest faults are the ones that behave perfectly while an engineer is standing there. We look for the physical evidence instead, checking for corrosion, loose connections, sticking valves and pressure history, so we can find the cause even when it is not misbehaving.

Sludge and System Contamination

Black sludge builds up in older systems and settles in radiators and pumps. It causes cold spots, noisy pipes and repeated pump failures. We test the system water, and where sludge is the cause we can power flush and add inhibitor.

Central heating fault diagnosis in Tooting with an engineer testing a system wiring centre

About us

Fault finding rewards experience more than anything else, and 25 years of it means Quick Call Property Services has usually seen the problem before. Customers often come to us after two or three other visits have failed to solve something. Our engineers test methodically and give you the reasoning in writing, so you know exactly what you are paying to put right.

Gas Safe registered engineers
Open 24 hours, every day
Same day service on most jobs
Next day boiler installation
25 years serving Tooting

STILL NOT SURE?

Frequently Asked Questions

Why does my heating come on when I have not asked it to?

This usually means a motorised valve is stuck open or the wiring centre is faulty, letting the boiler fire when the hot water calls for heat. A failed room thermostat can do the same. All three are testable and repairable without replacing the boiler itself.

My pipes make banging noises, is that serious?

Banging or kettling normally means air in the system, sludge restricting flow, or a pump running too fast. It is not usually dangerous but it does mean the system is working harder than it should. Left alone it shortens the life of the pump and boiler.

Can you diagnose a heating fault another engineer missed?

That is a good part of what we do. We start again from scratch rather than assuming previous conclusions were right, and we test the whole system rather than just the boiler. You get a written explanation of what we found so you can see the reasoning.