Sewer backup and drains in Montréal-Nord

Montréal-Nord is one of the most densely built boroughs in the area, with 1950s triplexes and duplexes packed close together on narrow lots. The basement here very often serves as a rental unit, which changes the stakes: a backup doesn't just flood storage space, it hits an occupied home.

The land, flat and clay-heavy like the rest of the east end, combines with an original sewer network that is largely unseparated. The most common requests here are for installing a backwater valve in a basement that's already finished as living space, and for regular cleaning of a drain dating back to when the rental unit was built.