About Foundation Waterproofing Toronto: 25+ Years of Wet Basement Work, Published Pricing, and Written Diagnostics Across the GTA
We are a crew of foundation waterproofing contractors serving Toronto and the GTA with 25+ years of experience in interior weeping tile, exterior foundation membrane, polyurethane and epoxy crack injection, and sump pump and backwater valve installation. Every project meets Ontario Building Code Part 9, every price we quote from is published on this site, and every claim we make is checkable against the page or provable on request.
- 25+ Years Experience
- Same-Day GTA Emergency Response
- Written Workmanship Warranty
- OBC Part 9 Compliant
- Up to $3,400 CAD Subsidy Filed
Meet the Crew
We do not publish founder stories or leadership headshots, because none of that tells you whether your basement will be dry next spring. What matters is who shows up, what they have done before, and what they leave behind in writing.
We work in pairs, on every job
Two crew members on the same task is how below-grade work stays safe and stays accurate. One person sets the ports while the other watches resin travel. One person runs the pipe while the other checks the fall. It is slower to photograph and faster to build correctly.
The same crew from diagnosis to warranty
The people who inspect your basement are the people who scope it, install it, and water test it at the end. There is no handoff between a salesperson and a subcontractor, which is why the written diagnostic and the finished job describe the same piece of work.
The Foundation Waterproofing Toronto Crew
Foundation Waterproofing Contractors, 25+ years across Toronto and the GTA
We are a crew of foundation waterproofing contractors serving Toronto and the GTA with 25+ years of experience in interior weeping tile, exterior membrane, polyurethane and epoxy crack injection, and sump pump and backwater valve installation. Every project meets Ontario Building Code Part 9, and every claim we publish is checkable on the page or provable on request.
- Ontario Building Code (OBC) Part 9 Compliant
- City of Toronto Basement Flooding Protection Subsidy Registered Contractor
- WSIB Registered, $2M Liability Insurance
- CSA-Certified Sump Pump and Backwater Valve Installations
Four Rules We Do Not Bend
Publish the price
Every CAD range we quote from is on this website. Pricing behind a form is how homeowners end up paying $18,000 CAD for a $2,500 problem.
Put the diagnosis in writing
The water source, the evidence, and the recommendation go in a document you keep. It is what makes our quote comparable to anyone else on your list.
Scope only what leaks
If one crack is the problem, one crack is the quote. We turn down system work regularly, and we say so in the written diagnostic.
Stand behind it for 25 years
Interior weeping tile carries a written workmanship warranty, backed by 25 years of continuous operation in the GTA.
What We Carry, and What It Means for You
Below-grade work is permit work. These are the registrations and coverages that let us file, inspect, and close out a job properly rather than leaving the paperwork with you.
- Ontario Building Code (OBC) Part 9 Compliant
- City of Toronto Basement Flooding Protection Subsidy Registered Contractor
- WSIB Registered
- $2M Liability Insurance
- CSA-Certified Sump Pump and Backwater Valve Installations
- Ontario Plumbing Code Compliant
Manufacturer certified systems
- Delta-MS
- Aqua Bloc
- Blueskin
- Platon
- Emecole
- Zoeller
- Liberty Pumps
Where we work
Toronto core, North York, Etobicoke, and Scarborough on same-day dispatch, plus Vaughan, Mississauga, Brampton, Markham, and Richmond Hill. Oakville is covered on a next-day schedule.
See all service areas
Have a crew look at your basement before the next thaw
The in-home inspection is free, the diagnostic is written, and the CAD price sits on the same page as the recommendation.
- Free in-home inspection with a written diagnostic
- Published CAD pricing before any work starts
- OBC Part 9 compliant, WSIB registered, $2M insured