Changing a radiator TRV

Question

How much does it cost to have a radiator TRV changed, I’ve bought the part it just seems too awkward and fiddly for me to do with draining pipes and everything. Would a plumber come out for such a small job? 
And how much would it cost?

Marcin · Accepted Answer

Just a TRV, cowboy standard (without changing olives, draining or bunging the system) £50.

Thorough job (including pipe freezing to avoid the need for full system draining) £80-100.

The real bodge standard - just the TRV crouch/head change - £40, but please do not post a request for this sort of job unless you upgrade the working system to TADO, etc.

Bear in mind that it is a good practice to change the lockshield valve (on the other end of your rad) at the same time.

Charlie · Answer

Yes, any plumber should come out for this job. You would be looking anywhere from £60-90.

Adam · Answer

Would depend on your central heating system. If it is an old gravity fed system it’s a bigger job than just changing the TRV. On average you would be looking at around £40 to change the valve however expect this to double if it’s a gravity fed system or if the system has to be drained

Peter · Answer

It seems a small job but the system has to be drained, part changed, inhibitor has to be added back into system system filled and vented.id say on a 3 bed average house 3-4 hrs @70-100£ hr

Chris · Answer

For one TRv £75 no need to drain system 
Jack The Plumber 
B14

Ray · Answer

Changing the trv is a couple of hours work. But there is other materials required like chemical inhibitor. Etc. Also the system will need venting and the boiler recommissioning. I’m based in hull and happy to have a look. Ray at fast react

Andrew · Answer

Hi Sean,  in most circumstances, it could be done without draining down. On that basis and you have the TRV, I would cost it  at £90.
It shouldn’t take more than an hour.

Regards, Andrew

Adam · Answer

Hi Sean, yes any plumber that’s worth his/hers weight would be able to do this. If you are handy you can do this simply plugging your inlets into your M&E tank(cold water) in your loft this will hold back water, a bit like putting your finger over a straw and lifting up the liquid.

Hope that helps you?
Best regards
Adam

Zach · Answer

Some plumbers love the small jobs (me included) it depends on the heating system to say what the price should be. But anywhere from £70-120

Philip · Answer

If draining down was straightforward and refilling system with inhibitors £70 to £80

Changing a radiator TRV

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