Radiator Valve Replacement

What radiator valve replacement covers

Radiator valves wear out over time and can start to leak, seize, or stop regulating temperature properly. This service is designed to restore safe, controllable heating at the radiator.

• Replacement of leaking or faulty TRVs (thermostatic radiator valves)
• Replacement of lockshield valves (the balancing valve on the return side)
• Diagnosis of valve-related issues, such as sticking pins or weeping glands
• Isolating the radiator and draining as required to complete the work safely
• Refit, refill and bleed the radiator, then check for leaks
• Restore system pressure (sealed systems) and confirm normal heating operation

When this service is most useful

• You can see water around a valve body, spindle, or compression joint
• A radiator is stuck on hot or not heating properly despite bleeding
• The TRV head turns but does not affect temperature
• You are upgrading controls and want TRVs fitted for better room-by-room control
• You need robust, reliable valves for a rental property or small commercial space

What to expect during the visit

The valve type and pipework are checked first, then the radiator is isolated or the system is partially drained depending on your setup. The faulty valve is removed, the new valve is installed and aligned, and joints are sealed and tightened correctly. Finally, the radiator is refilled, bled, and tested so you can be confident it is dry and working as it should.

After replacement: getting the best results

Once the new valve is fitted, you will get more consistent temperature control and fewer issues with pressure loss from slow leaks. If needed, basic radiator balancing checks can be carried out to help improve heat distribution across the system. You will also get clear guidance on using TRV settings and what to watch for over the next few heating cycles.