The central heating are not working, so we have been told to change the diverter valve to our Vailant boiler. How much would it cost to change? I have checked on a website and the actual valve doesn't cost any more than £150, but how much would the total cost be for changing it too? Thanks

Michelle, October 2010

Should be no more than 1 hour labour for either type of valve. That includes the body not just the head.

jim the plumb, October 2010