Ready to hire?

Post your job in minutes, browse real reviews and choose who to speak to.Post a job

Need some tips or advice?

Plumbing

Separating plumbing for downstairs toilet

Anonymous user 29/10/2026 - 2.47 PM

Hi, we are having a new bathroom fitted and downstairs toilet and sink. The plumber has connected plumbing from upstairs bathroom to downstairs toilet and sink. The problem is when the isolation valve for concealed bathroom taps & shower are turned off it also turns off the water in downstairs toilet & sink. We have asked him to separate the plumbing so we at least have downstairs available if anything happens upstairs. He said it’s not possible but the pipes for downstairs can be accessed by removing plasterboard, the ceiling downstairs is exposed too, as it has not been plastered yet. Can you advise if it possible given the copper pipes are still accessible from downstairs please? If so, how can it be done please? Many thanks

Are you a tradesperson and able to answer this question?

1 Answer

Precision Property Maintenance Ltd

No reviews yet

North Kensington, London

Yes, it is possible , especially as the copper pipework is still accessible from the downstairs ceiling. It sounds like the downstairs have been connected after the isolation valves serving the upstairs bathroom, which is why turning those valves off cuts off the water downstairs aswell. where the layout allows, you should be able to branch off before the isolation and re connect to below pipework ,so the downstairs has its own supply and can be isolated independently. I hope this helps!

Answered4 November 2026