Central Heating

Radiator Valve Replacement

A dripping or stuck radiator valve is usually a quick fix when it's done properly, and we make sure it stays fixed. Our team replaces manual and thermostatic valves cleanly and tests everything before we leave.

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Valve work we cover

From a single dripping valve to a full set of upgrades, here's what radiator valve replacement usually involves.

Thermostatic Valve (TRV) Replacement

Swapping worn or stuck TRVs for new ones so each room heats to the right temperature again.

Manual Valve Replacement

Replacing basic on/off valves that have seized, leaked, or become difficult to turn.

Leaking Valve Repairs

Finding and fixing the cause of drips at the valve joint, from worn seals to bad thread sealing.

Valve Upgrades During Heating Work

Fitting new valves as part of wider radiator, boiler, or pipework projects.

Why a valve that won't shut off properly is worth sorting quickly

A radiator valve does one simple job: control how much hot water flows into a radiator. When it's working properly you barely think about it. When it isn't, you get a radiator that won't heat evenly, a valve that's stuck or seized, or a slow drip that leaves a mark on the carpet before anyone notices.

We see this a lot on older systems around Brighton and Hove, where original valves have simply worn out, or where a TRV has stopped responding to the thermostat properly. It's a straightforward job for us, but it's not one to leave half done, because a badly fitted valve can leak, airlock the system, or damage the pipework thread if it's over-tightened.

A valve that's fitted properly shouldn't need thinking about again for years.

Our process is the same every time. We isolate the heating and drain down the affected radiator (or the whole system if needed), protecting your flooring with towels and a container as we disconnect the old valve. The new valve goes on with proper sealing on the threads, checked for correct flow direction, then the system is refilled, the radiator bled to clear trapped air, and everything is pressure-tested and checked for leaks before we consider the job finished.

More information

We get asked about this alongside all sorts of other things, dripping valves noticed while a boiler's being serviced, a cold spot on a radiator that turns out to be a stuck TRV, or a full room refit where new valves just make sense. If you're partway through a bathroom or renovation project with us, it's often something we can pick up in the same visit.

Tidy work and a proper leak check matter more than speed.

We are based in Woodingdean and cover Brighton, Hove, Worthing, Lewes, Shoreham-by-Sea, Haywards Heath, Seaford, Burgess Hill and surrounding Sussex towns, and we're happy to look at anything from a single valve to a houseful of radiators that need attention. We are Gas Safe registered for domestic gas work, registration 568345, so while we're there we can also flag anything else worth knowing about your heating system, no pressure, just an honest look.

If a radiator's dripping, stuck, or just not heating like it should, get in touch and we'll talk you through what's likely needed before anyone sets foot on site.

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Before you book

Straight answers to the questions we're asked most about replacing radiator valves.

How long does replacing a radiator valve take?
A single valve replacement usually takes an hour or two, including draining, fitting, refilling and testing for leaks. Multiple radiators or older pipework can take a bit longer.
Do you need to drain the whole heating system?
Not always. Many jobs can be done by isolating just the affected radiator, but on older systems or certain valve types a full drain-down may be needed.
Can you replace a manual valve with a thermostatic one?
Yes, this is a common upgrade and gives you better room-by-room temperature control. We'll check your pipework is compatible before quoting.
Will there be any mess or water damage?
We protect flooring with towels and containers during draining and disconnection, and we're careful about keeping things tidy throughout the job.
Is this covered by your Gas Safe registration?
Radiator valve work itself is plumbing rather than gas work, but we are Gas Safe registered for domestic gas work under registration 568345, so we can look at your whole heating system properly if needed.
Do you cover my area?
We are based in Woodingdean and cover Brighton, Hove, Worthing, Lewes, Shoreham-by-Sea, Haywards Heath, Seaford, Burgess Hill and surrounding Sussex towns.
What if the valve is on an older or unusual radiator?
Older pipework sometimes needs an adaptor or a slightly different fitting approach, which we'll identify and sort as part of the job rather than charging surprises later.
Can this be done alongside other heating or bathroom work?
Yes, it's often picked up during a boiler service, heating check, or bathroom installation, so it's worth mentioning if you've got other work planned.

Let's sort that radiator valve

Call 01273 911551 or send us a message and we'll talk through what's needed before booking anything in.

Call 01273 911551