Mon-Sat 9:00 AM - 5:00 PM
info@toronto-waterproofing.com
(647) 930-9220 Free Quote
  1. Home
  2. Services
  3. Commercial Waterproofing

Commercial Waterproofing in Toronto

Waterproofing solutions for commercial properties — offices, condos, parking garages, and multi-unit buildings.

Get a Free Quote Call (647) 930-9220
Professional waterproofing contractor
Commercial waterproofing is a fundamentally different discipline than residential work, and it’s one we’ve invested heavily in over the past two decades. The stakes are higher — a flooded underground parking garage can damage hundreds of thousands of dollars in vehicles, a leaking condo building affects dozens of families, and a wet retail space means lost revenue and potential lease disputes. At Toronto Waterproofing, our commercial division handles everything from small office buildings to large multi-unit condominium complexes, underground parking structures, and industrial facilities. We understand that commercial projects require detailed scoping, phased execution to minimize tenant disruption, and complete documentation for property managers, condo boards, and insurers.

Why Choose Us

Benefits of Our Commercial Waterproofing

Experience with condos, offices, retail, and industrial properties
Underground parking garage waterproofing
Minimal disruption to tenants and business operations
Code-compliant solutions for commercial buildings
Preventive maintenance programs for property managers
24/7 emergency response for commercial clients
Toronto’s commercial buildings face unique waterproofing challenges driven by the city’s geography and climate. The high water table near Lake Ontario means underground structures in south Toronto and the waterfront are under constant hydrostatic pressure. The freeze-thaw cycle accelerates deterioration of parking garage membranes and expansion joints. And many of Toronto’s mid-rise condo and commercial buildings from the 1960s through 1980s used below-grade waterproofing systems that have well exceeded their service life. We’ve worked on buildings where the original bituminous waterproofing has completely embrittled and cracked, leaving the foundation walls essentially unprotected.

Don't Ignore the Signs

Signs You Need Commercial Waterproofing

Water staining, dripping, or calcium deposits on parking garage ceiling slabs
Spalling or delaminating concrete on below-grade walls or structural columns
Active leaks in elevator pits requiring frequent pumping
Tenants reporting moisture, mould, or musty odours in ground-floor or below-grade units
Failed expansion joints in parking garages allowing water through to lower levels
Reserve fund study identifying waterproofing renewal as a near-term capital expense
Our commercial waterproofing solutions are engineered for the specific building type. For underground parking garages, we use traffic-rated membrane systems — typically a hot-applied rubberized asphalt membrane (such as Tremco or Carlisle products) protected by a drainage board and traffic topping. For below-grade foundation walls on commercial buildings, we apply fluid-applied elastomeric membranes or bentonite clay waterproofing sheets, depending on the access conditions and soil chemistry. For elevator pits, mechanical rooms, and other confined below-grade spaces, we use crystalline waterproofing admixtures (such as Xypex or Krystol) that become an integral part of the concrete structure and self-heal hairline cracks over time.
One of the most common commercial projects we handle is condo reserve fund waterproofing — planned waterproofing renewal that condo corporations budget for through their reserve fund studies. We work closely with condo boards, property managers, and their engineers to scope the project accurately, provide competitive pricing, and execute the work with minimal disruption to residents. This typically involves phased exterior excavation and membrane replacement, parking garage membrane renewal, or interior injection programs to address leaking cracks. We provide detailed project documentation including engineer-reviewed specifications, progress reports, and warranty certificates suitable for inclusion in reserve fund records.
For property managers and building owners, we also offer preventive maintenance programs that include annual inspections, drain cleaning, sump pump testing, and minor repairs before they become major problems. In our experience, a proactive maintenance program can extend the life of a commercial waterproofing system by 50% or more and prevent the kind of catastrophic failures that result in emergency calls, insurance claims, and angry tenants. We provide 24/7 emergency response for our commercial clients because we understand that a waterproofing failure in a commercial building can’t wait until Monday morning.
Not sure what you need? Get a Free Inspection Call (647) 930-9220

Materials & Methods

Our Technical Approach to Commercial Waterproofing

Traffic-Rated Parking Garage Membrane

Hot-applied rubberized asphalt membrane (60+ mil thickness) designed for vehicular traffic loads. Applied over prepared concrete deck, protected with drainage composite and concrete traffic topping. Rated for 20+ year service life under normal parking garage conditions.

Fluid-Applied Elastomeric Foundation Membrane

Spray or roller-applied polyurethane or rubberized asphalt membrane for below-grade foundation walls. Provides seamless, monolithic waterproofing coverage that bridges hairline cracks and accommodates minor building movement. Typically applied at 80-120 mil dry film thickness.

Crystalline Waterproofing Treatment

Cementitious crystalline waterproofing (Xypex, Krystol, or equivalent) applied to concrete surfaces. Active chemicals react with moisture and calcium hydroxide in concrete to form insoluble crystals that fill pores and micro-cracks. Self-healing capability reactivates when new moisture is present.

Curtain Wall Injection Program

Systematic injection of leaking cracks in below-grade walls using polyurethane or epoxy resins. Injection ports are installed on a grid pattern, and each crack is individually injected and documented. Used for active leak remediation in occupied buildings where exterior access is not feasible.

Our Process

How We Deliver Commercial Waterproofing

Site Assessment

We evaluate the property, review building plans, and identify all areas of water intrusion or vulnerability.

Proposal

We provide a detailed scope of work, timeline, and pricing, often with phased options to minimize disruption.

Execution

Our commercial crew works efficiently with flexible scheduling to minimize impact on tenants and operations.

Documentation

We provide complete documentation including warranties, maintenance schedules, and compliance certificates.

Transparent Pricing

Commercial Waterproofing Costs

Honest pricing with no hidden fees. Every quote is customized to your specific needs.

Service Price Range
Commercial consultation Free
Parking garage waterproofing Custom quote
Multi-unit building waterproofing Custom quote
Commercial maintenance program Custom quote

Prices vary by project scope. Get an accurate quote with a free inspection.

Get Your Free Quote

Client Reviews

What Our Customers Say

★★★★★
“Outstanding job! My basement is finally dry thanks to your team. No more musty smell or moisture problems. A+ service!”
William Hobb
William Hobb
★★★★★
“From the initial appointment to final inspection, service was exceptional. Prompt, professional, and results exceeded expectations.”
John David
John David
★★★★★
“Professional and friendly staff. They solved our leaky basement in no time. The results were fantastic. Basement has been leak-free since the work was done.”
Alison Grey
Alison Grey
Read All Reviews

Experience & Expertise

Why Toronto Homeowners Trust Us

25++
Years Experience
5000++
Projects Completed
98%
Satisfaction Rate
25yr
Warranty Available
Our commercial division carries $5 million in commercial general liability insurance, full WSIB coverage, and is bonded for projects up to $2 million. All work complies with Ontario Building Code Part 5 (Environmental Separation) and Part 9 where applicable. We hold COR (Certificate of Recognition) safety certification and provide project-specific safety plans for every commercial engagement.

Related Solutions

Services That Complement Commercial Waterproofing

🏛️

Foundation Waterproofing

Complete foundation waterproofing solutions to protect your home's structural base from water damage.

Learn More →
💉

Epoxy Injection

Precision epoxy crack injection to permanently seal and strengthen foundation cracks from the inside.

Learn More →
🚿

Sewer & Drain Cleaning

Fast, professional sewer and drain cleaning to clear clogs, tree roots, and backups throughout Toronto.

Learn More →

Service Areas

Commercial Waterproofing Across the GTA

We provide commercial waterproofing throughout Toronto and the Greater Toronto Area.

North York Etobicoke Mississauga Markham Richmond Hill Midtown Toronto Newmarket Barrie Scarborough Vaughan Oakville Brampton Hamilton Oshawa Ajax Pickering Burlington Thornhill Aurora East York

Common Questions

Commercial Waterproofing FAQ

Yes. We work with condo boards and property management companies on both common-area waterproofing and individual unit issues. We can coordinate with your board for approvals and scheduling.
Yes. Parking garage waterproofing is one of our specialties. We use traffic-rated membrane systems designed for vehicle loads and heavy use.
Yes. We offer preventive maintenance programs for commercial properties that include regular inspections, drain cleaning, and priority emergency response.

Ready for Commercial Waterproofing?

Schedule a free inspection today. Our experts will assess your situation and recommend the best solution.

Get a Free Quote Call (647) 930-9220