Urgent maintenance on Studio apartment with one bathroom

Hi,

My tenant living in a one bed room apartment with a private bathroom in an old building. (no swimming pool or other common area).

There is a problem with the bathtub plumbing issue which has caused the units underneath this one studio apartment lodge a complaint of water leaking.

So if I conduct an urgent repair (which is quite an extensive job for about 5 days) on this studio with just one bathroom unit, the existing tenant complaint that they cannot use the bathroom for 5 days.

As a land lord, do we need to think something else or there is no other choice for the tenant to stop using bathroom for the 5 days duration ?

Any help would be greatly appreciated.

Thanks

Urgent maintenance on Studio apartment with one bathroom