Robins

hello.

I  wasn 't sure where to put this post (I'm new DUH)

i've just been watching  a pair of robins carrying leaves and stuff to a window sill . I 'm presuming they are building or fixing a nest . The problem is, we 've just had scaffolding put up around the building as they are  going to be starting  redecorating and work on the windows  soon.    the old lady who owns the  flat where the robins are  no longer lives there. What can I do to protect the nest  from the decorators ?

 any advice would be welcome

sandy x