2026-03-05
Interior vs exterior waterproofing in Orillia
Interior manages water at the wall. Exterior keeps water off the wall. Orillia homes usually need one or the other, and the wall type often decides which.
Interior: collect and pump
We open the slab at the perimeter, set a drain, line the wall and pump the water out. It is faster, usually less costly, and kinder to downtown walkways and West Ridge landscaping. It is the right call for cove-joint leaks and finished basements you cannot empty for a week of excavation.
Exterior: stop it outside
We dig to the footing and rebuild the barrier. Best when the wall face is wet, a century elevation never had a membrane, or the original system has failed. It takes longer and costs more because excavation is the job.
How we choose
Entry point, lot width, how long you plan to own the house, and whether the yard can take a trench. We will tell you if a cheaper interior system would only hide a wall that is still taking a beating.
