From pages 2 and 3 of the link below, I think this is what you're looking for:
-------------
3) Without restricting the generality of Section 2 hereof, the following shall be deemed likely to annoy, disturb, injure, endanger or detract from the peace, health or safety of any other person:
......
......
f) the sound emanating from excavation or construction work of any nature between 2200 hours of any day and 0700 hours of the next following day (10:00 p.m. - 7:00 a.m.), except in such locations where such conduct is permitted by applicable land use provisions, or where authorized by the Chief of Police:
------------------
The whole bylaw including other circunstances where there is restriction on noise:
http://brandon.ca/images/pdf/bylaws/5806.pdf