Guides

Practical plumbing and heating guides

Clear diagnostic steps for common radiator and hot-water problems, with safety limits and honest advice about the right professional to call.

2 practical guides

Diagnose the symptom

Choose a guide.

Start with what the heating and hot water are doing, then follow only the checks that match your system.

Learn how to identify and safely free a stuck radiator valve pin, what to do if it leaks, and when a cold radiator has another cause.

Heating works but there is no hot water? Check immersion heaters, cylinder controls, airlocks, circulation and when a boiler engineer is required.