Thermostatic radiator valves, fitted properly
A thermostatic radiator valve (TRV) lets each radiator stop heating once its room is warm enough. We fit new ones and replace old valves that are stuck or leaking. Send us photos on WhatsApp and we reply with a fixed quote.
What we do
Photos first, fixed quote, then the work
Four steps, so you know where you stand.
Step 1: Send photos
WhatsApp photos of each radiator and its valves, and say which rooms you want to control.
Step 2: Fixed quote
We reply with a fixed quote that says what is included, before any work starts.
Step 3: Valves fitted
We drain down as needed, fit the thermostatic valves and refill the system.
Step 4: Tested and explained
We bleed the radiators, test each valve and show you the settings.
What a TRV does, and does not do
A TRV senses the temperature of the room and closes down the radiator when the room is warm enough. It controls that radiator only. It does not control the boiler, which is the job of your room thermostat or programmer.
That is why we usually advise leaving the radiator in the room with the main thermostat without a TRV, so the heating can still call for heat. We tell you which one when we look at your photos.
When a valve needs replacing
Old valves can stick shut, stay stuck open or drip from the spindle. A radiator that stays cold while the others heat is sometimes a stuck valve pin, though trapped air and sludge can cause the same thing, so we check before we replace anything.
If a valve is replaced on its own, the system usually needs part draining. We work mainly on combination boiler heating systems and refill with inhibitor afterwards.
What to send us on WhatsApp
- Each radiator you want a TRV on, with both valves in the photo
- Any valves that leak, stick or stay cold
- Which room has your main thermostat
- A photo of the boiler
- Roughly how many radiators there are
Send us photos on WhatsApp for a fixed quote.
Send photos on WhatsAppFrequently asked questions
How much does TRV installation cost?
There is no set price, because it depends on how many radiators and what valves they have now. Send us photos on WhatsApp and we will give you a fixed quote.
Do I need the system drained to fit a TRV?
Usually part of the system needs draining down. We refill it afterwards, add inhibitor and bleed the radiators.
Should every radiator have a TRV?
Not always. We usually leave the radiator in the room with the main thermostat without one, so the heating can still switch on. We advise when we see your photos.
Why is one radiator cold when the others are hot?
It can be a stuck valve, trapped air, sludge, or an unbalanced system. Send photos and we will tell you which looks likely before you pay for anything.
Can you replace the radiator as well?
Yes, see radiator replacement.