Drainage Is the Quiet Part of Waterproofing
Membranes slow water entry, but drainage relieves pressure. Weeping tile, sump basins, pumps, discharge lines, and grading all work together to move water away from the building. If one part fails, the whole system can look like it failed.
Interior and Exterior Weeping Tile
Exterior weeping tile sits at the footing and collects water before it builds against the wall. Interior drainage collects water under the slab or at the floor-wall joint and routes it to a sump. The right choice depends on access, leak source, soil, and how the space is used.
Sump Pump Installation and Replacement
We install sump basins, primary pumps, check valves, battery backups, high-water alarms, and discharge lines. For multi-unit and commercial buildings, pump sizing and redundancy matter because a single failed pump can affect tenants, storage, mechanical rooms, or finished areas.
Costs for Drainage Work
Weeping tile and interior drainage typically runs $80 to $160 per linear foot depending on slab conditions, depth, access, and discharge routing. Sump pump installation commonly runs $1,800 to $4,500 depending on basin, pump, backup, and discharge requirements.
Discharge Has to Be Legal and Practical
Water cannot simply be dumped where it creates ice, neighbour disputes, or recirculation back to the foundation. We review discharge route, municipal constraints, grading, and freeze protection before finalizing the plan.
Backups and Alarms
Power outages often happen during storms, exactly when the pump is needed. Battery backup and high-water alarms are strongly recommended for finished spaces, multi-unit buildings, and any property where water damage would be expensive.
Maintenance and Testing
Pumps, check valves, and discharge lines should be tested periodically. We can inspect existing systems, replace weak components, and document what needs attention before the next storm season.
Issues We Hear About Most Often
Boards, property managers, and GCs across the GTA run into the same leak patterns. Here is what usually leads to this service — and how we approach the repair.
The pump runs constantly
Constant cycling can mean high groundwater, poor discharge routing, a stuck switch, or an undersized system. We diagnose before replacing parts.
Water returns during power outages
A waterproofed basement can still flood if the pump loses power. Battery backup is often essential protection.
Discharge water freezes on walkways
Poor discharge creates ice, liability, and recirculation. We route water with winter conditions in mind.
Old weeping tile is clogged
Older clay or collapsed drainage tile may not relieve wall pressure anymore. Replacement or interior drainage may be needed.
Drainage Systems Across the GTA
Drainage Systems is available across Toronto and the Greater Toronto Area. Crews are routed by region so site reviews and emergency leak calls stay practical: