Radiator Valves

Learn more about radiator valves

A radiator valve controls the flow of hot water into a radiator, and the type you choose depends on the level of control the building needs and how the pipework runs.

A thermostatic radiator valve, or TRV, adjusts flow automatically to hold a set room temperature. A manual valve gives simple on-off style control, and electronic options add programmable control. On the return side, a lockshield radiator valve is used to balance the system so each radiator heats evenly.

Typical uses

• For room-by-room temperature control on standard heating systems.

• Select a lockshield radiator valve on the return side where balancing is part of the installation.

• Swapping outdated manual valves for modern TRV radiator valves during central heating system upgrades.

• Installing valve sets on heated towel rails for a clean, decorative finish.

How to choose the right radiator valve

• Check whether you need a manual valve, a thermostatic radiator valve or an electronic option.

• Confirm the valve type, thread size and connection details against the existing fitting, especially on replacement work.

• Check the actuator length, head style and any TRV adapter and fitting requirements before ordering.

• Make sure the valve suits the radiator type, including older radiators where compatibility needs checking carefully.

• If you're ordering radiator valve heads separately, confirm they match the valve body already fitted.

Before you order

• Measure the radiator connection and compare it with the product specifications on the item you're choosing.

• Confirm how many thermostatic radiator valve replacements you need.

• Check any existing lockshield arrangement so the new valve set works with the system as planned.

• Allow for balancing and any follow-up adjustments after fitting.

Explore our range of radiator valves

Browse radiator valves for replacement and new-installation work across common valve types. You'll find a great selection of TRVs and lockshields, so you can compare different types by connection, orientation and control method.

From individual radiator valve heads through to complete valve sets, choose the right combination for the job with support from a nationwide branch network, reliable stock availability and specialist product expertise. Use our free Click & Collect service to pick up your order when you need it.