service valves or not

[mitchino]

Refurbishing a bathroom - cold water is mains fed, hot from combi. There is a main service valve to the whole system where the supply enters the house. Do I need to have service valves on bathroom sink, shower and bath? Normally if I have to repair/replace anything I just shut off the main valve.

 

[Deleted member 120897]

They’re not required, only one required is on the toilet. It’s good practice and if you wanted to I’d recommend full bore ones.

 

[ShaunCorbs]

Depends on the type of kit / sanitary

Showers and baths no

Toilets and basins yes if you can access them afterwards

 

[Last Plumber]

Personally I think they're pointless. They leak for fun and more often than not you end up replacing them as well as the tap you are isolating.
As above, if they are easily accessible afterwards and you turn them once a year to keep them active, it might be seen as good practice by some.

 

[mitchino]

Thanks - got one on the toilet, won't bother with the others.

 

[SimonG]

I always use them, means I can get water off, pipes cut and valved, water back on whilst I'm finishing the install.