Replacing a shower mixer bar

[David Sarbutts]

Hi, I’m thinking of changing my shower mixer bar. Can you please tell me how I isolate both hot and cold pipes so I can remove the old mixer bar?
I’ve just moved house and the boiler is a combi.
Any help is appreciated.
Regards Dave

 

[oldbuffer]

Turn off the main stop valve to the property and switch the boiler off. This should stop both hot and cold from a combi system, but turn the shower on to check no more than dregs in the pipes come out.

 

[muggles]

Turn off the water at your stopcock, open a hot tap to depressurise the system (this will do both hot and cold) then change your mixer. Once you're done, turn the stopcock on again. Easy!

 

[David Sarbutts]

Hi, Thank you for your replies. Do I need to turn of the boiler or can it be left on?

 

[terryplumb]

Turn it off ,no point leaving it on really .

 

[David Sarbutts]

Thank you for all your appreciated replies