Toronto & the GTA · Foundations, Garages & Drainage
About CWC Commercial Waterproofing
We stop water where it enters managed buildings — foundations, parking decks, elevator pits, balconies, and envelope joints — and leave property teams with photos, scopes, and warranty language they can file.
Licensed
Licensed Waterproofing Crews
WSIB
WSIB Covered Crews
1-Hour
Leak Response Time
24/7
Emergency Service
Built Around Leak Paths, Not Guesswork
Waterproofing fails when the water path is wrong. Our crews start by finding whether water is coming through a wall, rising at the floor-wall joint, bypassing a failed drain, or riding a cracked coating — then we price the system that matches that path.
That means honest talk about interior drainage versus exterior excavation, coating cure times in occupied garages, and what a board needs in writing before approving a special assessment.
- Licensed crews with WSIB coverage on every waterproofing job
- Diagnosis, membrane or drainage work, photos, and warranty notes in one package
- 24/7 emergency water-control dispatch across the GTA
Waterproofing Is the Whole Job
We are not a general contractor dabbling in sealant. Day-to-day work is foundation membranes, parking garage traffic coatings, podium decks, elevator pits, sump and weeping-tile corrections, crack injection, and envelope joint replacement for commercial and multi-unit buildings.
Clear Scopes Boards Can Approve
Vague lump-sum waterproofing bids create disputes later. We separate membrane, drainage, concrete repair, restoration, and phasing so owners see what they are buying. If something needs follow-up after the membrane or drainage work, you call the same waterproofing crew that priced and installed it.
How Property Teams Work With Us
Condo corporations, PMs, facility managers, and GCs send us active leaks, reserve-study items, and garage assessments. We return photo notes, COI paperwork, phased closures, and language that can travel to boards or insurers. Multi-site managers can ask about shared documentation standards across a portfolio.
Coverage You Can Verify
- • Commercial general liability — certificates available before mobilization
- • WSIB coverage on every crew member
- • Working-at-heights planning when balcony or facade access is required
- • Waterproofing, drainage, and concrete repair crews under one schedule
- • Written warranty terms on eligible waterproofing assemblies
Whether we are tracing a garage drain leak or walking a board through exterior excavation versus interior drainage, the goal stays the same: name the water path, price the repair honestly, and leave a paper trail the building can keep.
Talk With a Waterproofing Specialist
Call 1 (888) 702-2022 or request a free site assessment for your building.