Noise from essential repairs

General Discussion

Will be carrying out essential maintenance,repairs,renovations and improvements on the (4th)top floor of our rental property.
It is in dire need of change.

We will still have tenants living on the lower levels whilst the work is going on.

There will be daytime noise created by the work at legally permitted times for around 4 weeks.

I intend to do a letter briefly outlining that the work is essential and when it is going to take place to give to all the tenants.

Does anyone have good wording for this type of correspondence and any tips to cover myself against potential problems?