Leaking Basement Repair & Waterproofing
Comprehensive basement waterproofing — crack injection, sump pumps, and full membrane systems. IICRC-certified technicians on-site in 45 minutes.
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What Our Leaking Basements Service Includes
Every leaking basements project is unique — here's the full scope of what we handle for Toronto and GTA properties.
Leaking Basements in Action
See our certified team delivering professional leaking basements services across Toronto and the GTA.
Our Leaking Basements Process
Step-by-step breakdown of how our team handles leaking basements from initial call to final walkthrough.
Free Inspection
Our certified technician inspects your basement using moisture meters, thermal imaging, and visual assessment to pinpoint the exact source and severity of the leak.
Diagnosis & Proposal
We provide a detailed written report with photos, recommended repair options, and transparent pricing. We explain the pros and cons of each approach for your specific situation.
Waterproofing Installation
Our crew executes the approved plan — whether interior crack injection, exterior excavation, sump pump installation, or a combination system for maximum protection.
Drainage Optimization
We ensure proper grading, weeping tile function, and water routing away from your foundation to prevent future leaks and protect your investment long-term.
Restoration & Finishing
Any disturbed areas are restored to pre-repair condition. We repair drywall, flooring, and finishes to leave your basement clean and dry.
Warranty & Monitoring
All waterproofing work is backed by our warranty. We provide maintenance tips and follow-up to ensure your basement stays dry through every season.
Leaking Basements Questions & Answers
Common questions Toronto homeowners ask about our leaking basements services.
Q. What causes a basement to leak?
The usual culprits are foundation cracks, failed or clogged weeping tile, poor exterior grading, hydrostatic pressure during heavy rain, and deteriorated waterproofing membranes. We diagnose the actual source before recommending a fix so you only pay for what solves the problem.
Q. Should I waterproof from the inside or the outside?
Both have their place. Exterior waterproofing (excavation, membrane, drainage) addresses water before it reaches the foundation and is the most permanent fix. Interior systems (crack injection, drainage membrane, sump pumps) are less invasive and ideal where excavation is impractical. We assess your home and recommend the right approach.
Q. How much does leaking basement repair cost in Toronto?
A single foundation crack injection typically runs a few hundred dollars, while full interior or exterior waterproofing systems can range from roughly $3,000 to $15,000+ depending on linear footage and access. We provide a clear written quote after an on-site assessment.
Q. Do you offer a warranty on waterproofing?
Yes. Our crack injections and waterproofing systems come with a workmanship warranty, and we use polyurethane and epoxy products engineered to flex with seasonal foundation movement common in Ontario.
Q. Can a leaking basement cause mold?
Absolutely — persistent moisture is the number-one trigger for basement mold. If we find existing growth during assessment we coordinate with our mold removal team so the area is remediated and the leak is sealed in one project.
Q. Do I need to be home while you waterproof my basement?
You do not need to be home for most of a basement waterproofing job once the scope is agreed, since interior work and exterior excavation can proceed with a key or access arrangement in place. We do ask that you or someone available be reachable by phone in case we need a decision on an unexpected issue during the work.
Q. How long does interior basement waterproofing take to complete?
Interior basement waterproofing typically takes two to four days for an average GTA home, depending on the linear footage of wall being addressed and whether a new drainage system and sump pump are being installed. Exterior waterproofing takes longer due to excavation. We give you a written timeline specific to your basement before work begins.
Q. What certifications should a basement waterproofing contractor have?
Look for a basement waterproofing contractor certified to IICRC S-500 water damage standards, since leaks and waterproofing failures are ultimately a water intrusion problem. Pro Max Restoration technicians hold this certification and bring 15+ years of experience diagnosing why Toronto and GTA basements leak, not just patching the visible crack.
Q. What happens if you find a bigger foundation problem once work begins?
If we uncover a bigger foundation problem, such as a structural crack or settling, once waterproofing work begins, we pause, explain what we found with photos, and give you a revised quote before proceeding. You are never charged for additional structural work without approval, and we can coordinate directly with your insurer if the issue is covered.
Q. Do you handle basement waterproofing for commercial buildings?
Yes, we handle basement and below grade waterproofing for commercial buildings as well as residential homes across the GTA. Commercial waterproofing often involves larger drainage systems, multiple access points, and coordination around business hours, which our crews plan around so operations are disrupted as little as possible. Call 416-988-3539 to discuss a commercial site visit.
Recent Leaking Basements Projects Across Toronto & the GTA
A look at real leaking basements work completed by our IICRC-certified crews across Toronto and the Greater Toronto Area.
Restoration Services Across the GTA
We respond to emergencies in 45 minutes across the Greater Toronto Area. Explore our dedicated city pages or request a free quote.
Got a Leaking Basement? Get a Free Assessment Today
Our certified technicians arrive on-site within 45 minutes. Don't wait—call now for immediate assistance.