I have a number of radiator valves that need replacement as they always get stuck each year. I am open to suggestions as to the type of valve, and in particular whether it makes sense to use ‘Smart’ valves that might enable some heating ‘zones’ to be established. That may mean more replacement valves than simply those that are not working, so I imagine that a brief pre-visit would be required to quote accurately. We also need to replace the shower control on our Aqualisa shower (Quartz part QZD.B3.WR.14).