The Glebe's early-1900s brick houses have deep soffits, roof additions and old chimneys, and the streets are lined with large trees. Raccoons and squirrels move roof to roof easily.
Many of these homes have had several roof jobs over the years, which leaves gaps where old and new materials meet. The inspection covers the whole roof line, not only the hole you can see.
One-way door on the entry hole, heavy-gauge screening on vents and roof edges, and a check for kits before anything is sealed.
Find the chewed gaps, install a one-way door, and seal the roof line so squirrels can't chew back in.
Seal the house, fit one-way valves at the exits, and do it only outside the pup season.
Remove contaminated insulation and droppings, sanitize, and re-insulate once the house is sealed.