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Best Waterproofing Companies in Toronto 2026
Basement leaks and other waterproofing issues can cause serious damage to your home. For instance, increased moisture in the basement can lead to the growth of fungus, mildew, and mold. Similarly, water infiltration can cause structural damage to your foundation and your entire home. That’s why it’s recommended to work with a reliable waterproofing company […]
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Basement leaks and other waterproofing issues can cause serious damage to your home. For instance, increased moisture in the basement can lead to the growth of fungus, mildew, and mold. Similarly, water infiltration can cause structural damage to your foundation and your entire home. That’s why it’s recommended to work with a reliable waterproofing company to fix the damage.
There are many waterproofing contractors in Toronto. Finding a reliable one can be daunting, and it’s best to compare potential contractors before you hire one.
Why Quality Waterproofing Matters in Toronto in 2026
Your home is one of your largest financial assets, and unresolved water issues can result in significant financial losses. Foundation damage alone can reach tens of thousands of dollars, while mold remediation services are often costly.
In serious cases of water damage, structural repairs may exceed six figures, which places a heavy financial burden on Toronto homeowners. Insurance coverage is not always guaranteed, and many policies exclude certain types of water damage. Thus, high-quality waterproofing helps protect both the structural integrity and long-term value of your home.
Water intrusion also threatens the health of the people living inside your home. For instance, mold growth spreads quickly and may trigger allergies, asthma, and other respiratory issues. Moisture intrusion contributes to poor indoor air quality, which can extend beyond the basement and affect the entire home.
A reliable waterproofing contractor can help repair leaks and waterproof your home to prevent water-related damage to your basement, foundation, walls, and other parts of your home. Additionally, preventive waterproofing measures can protect your home from the damaging effects of water and moisture intrusion.
Top 10 Waterproofing Companies in Toronto & GTA
Waterproofing in Toronto and across the Greater Toronto Area is a fast-growing industry. So, the specific waterproofing products and services offered by these companies vary significantly. If you are unsure of which waterproofing company to hire, here’s a comprehensive list of the top 10 waterproofing contractors in Toronto.
| Company Name | Specialized Services | Years in Business | Service Areas (GTA) | Emergency Service (24/7) | Warranty Offered | Average Google Rating (2026) | Number of Reviews | Response Time |
|---|---|---|---|---|---|---|---|---|
| 15+ Years |
| 24/7 Available | Lifetime Warranty | (4.9) | 350+ | Under 1 Hour | |
| 25+ Years |
| No | Up to 25 Years | (4.8) | 500+ | 1 Hour | |
| 50+ Years |
| No | 40-Year Warranty | (4.5) | 300+ | 1–2 Hours | |
| 20+ Years |
| No | 25-Year Warranty | (4.8) | 250+ | 1 Hour | |
| 100+ Years |
| No | Lifetime Warranty | (4.4) | 800+ | 1–3 Hours | |
| 25+ Years |
| No | Lifetime Warranty | (4.7) | 400+ | 1 Hour |
1. Waterproofing PD
Location: Toronto, GTA
Specialty: Full-service basement waterproofing, foundation repair, and sump pump systems
Years in Business: Over 10 years
Waterproofing PD offers waterproofing services related to wet basements, foundation issues, and moisture problems across Toronto and the surrounding region. Their team assesses each property carefully before recommending a custom waterproofing plan.
The contractor offers exterior and interior waterproofing, sump pump installation, underpinning, egress window services, foundation parging, and other related repairs. Warranty-backed services and a customer-focused approach demonstrate the company’s dedication to delivering high-quality services and ensuring customer satisfaction.
Highlights
- Comprehensive basement waterproofing solutions with over 20 years of experience.
- Lifetime transferable warranties are available for some waterproofing packages.
- Certified, insured, and bonded technicians.
- HomeStars’ Best of Award Winner 2024.
- Veteran-owned and family-operated business.
- Licensed and insured waterproofing contractor.
- Quick response and quality waterproofing services.
- Competitive prices for waterproofing projects.
- Average Google rating of 5/5 stars
2. Canada Waterproofers
Location: Toronto & Greater Toronto Area
Specialty: Basement waterproofing, foundation crack repair, sump pump installation, and drainage solutions
Years in Business: Over 20 years
Canada Waterproofers provides professional basement waterproofing and foundation repair services for homeowners across Toronto and the Greater Toronto Area. The company focuses on diagnosing the root cause of water infiltration problems before recommending a tailored waterproofing solution.
The company emphasizes transparent communication and practical solutions designed to match the specific needs of each property. Homeowners rely on Canada Waterproofers for long-term protection against moisture intrusion and the prevention of costly structural issues.
Highlights:
- Offers interior and exterior basement waterproofing solutions.
- Provides foundation crack repair, sump pump installation, and drainage upgrades.
- Experienced technicians serving Toronto and the GTA.
- Identifies the root cause of water infiltration before recommending solutions.
- Known for reliable workmanship and professional service.
3. Aquatech Waterproofing
Location: Toronto, Greater Toronto Area
Specialty: Interior and exterior waterproofing, foundation repair, sump pump, and drainage systems
Years in Business: 25+ years (since 1996)
Aquatech Waterproofing offers a comprehensive range of basement and foundation waterproofing services across the Greater Toronto Area. They handle interior and exterior waterproofing, foundation crack repair and sealing, sump pump and drainage installation, and moisture control.
The company tailors solutions to meet the home’s specific needs and works to deliver permanent protection against wet or leaky basements.
Highlights
- Offers both interior and exterior waterproofing solutions, including sealants, drainage systems, and sump pump installations.
- Offers foundation repair services, including crack sealing and structural stabilization where needed.
- Provides free estimates and flexible service across the GTA.
- Known for professional leadership, licensed contractors, and over 50k satisfied customers.
4. City-Wide Group
Location: Toronto, GTA, and the surrounding areas
Specialty: Residential and commercial basement waterproofing, foundation repair, and underpinning
Years in Business: Since 1961 (over 60 years)
City-Wide Group is a long-established waterproofing and basement repair firm that’s proud to serve Toronto, the GTA, and beyond. The company assesses moisture patterns, soil conditions, foundation integrity, and drainage issues before recommending tailored waterproofing or structural solutions.
Their services range from basement leak repair and exterior waterproofing to underpinning and the installation of drainage systems. These services are ideal for both modern and older homes or buildings with complex foundation needs.
Highlights
- Over six decades of experience protecting homes across the GTA.
- Comprehensive basement and foundation services, including waterproofing, underpinning, exterior drainage, crack repair, sump pumps, and more.
- Handles both residential and large-scale commercial or multi-unit buildings.
- Transparent project proposals and written estimates.
- The contractor is known for reliability and adherence to building codes.
5. Direct Waterproofing Services
Location: Toronto, GTA
Specialty: Basement waterproofing, foundation repair, and plumbing-licensed waterproofing
Years in Business: Over 25 years
Direct Waterproofing Services provides waterproofing and foundation repair services throughout Toronto. Their team holds multiple plumbing and building renovation licenses, enabling them to address basement leaks, structural problems, and drainage issues in compliance with the local building codes.
The company offers a variety of services, including exterior and interior waterproofing, concrete work, and foundation repair. Homeowners and commercial property owners can rely on Direct Waterproofing Services for comprehensive and code-compliant waterproofing solutions.
Highlights
- Professionally licensed across plumbing and waterproofing categories.
- Offers both interior and exterior waterproofing solutions to commercial and residential properties.
- Competitive pricing while delivering high-quality services.
- 25-year warranty.
6. Royal Work Basement Waterproofing
Location: Toronto & GTA
Specialty: Basement waterproofing, foundation repair, crack injection, and drainage systems
Years in Business: 15+ years
Royal Work Basement Waterproofing is a Toronto-based contractor specializing in comprehensive waterproofing solutions designed to protect residential foundations and basements. Their team provides detailed inspections to determine the cause of water intrusion before developing a customized waterproofing strategy.
The company offers both interior and exterior waterproofing services, foundation crack injections, drainage system installations, sump pump solutions, and basement leak repair. Royal Work also handles foundation reinforcement and structural waterproofing work for properties experiencing long-term moisture or soil pressure issues.
Highlights:
- Provides both interior and exterior waterproofing solutions.
- Experienced in foundation crack and structural waterproofing repairs.
- Offers drainage system installation and sump pump solutions.
- Detailed inspection process to identify the root cause of water intrusion.
- Serves residential properties throughout Toronto and GTA communities.
7. RCC Waterproofing
Location: Toronto & GTA
Specialty: Waterproofing for basements and foundations, leak repair, lifetime-warranty services
Years in Business: Since 1920 (100+ years)
RCC Waterproofing is among the oldest waterproofing contractors in Toronto. With a century of experience, the company has established a strong reputation for handling complex waterproofing and basement foundation repair projects.
Their services focus on stopping leaks, sealing basements, repairing foundations, and providing long-term protection. The company’s lifetime warranty on many services highlights its confidence and commitment to quality.
Highlights
- Over 100 years in waterproofing (unmatched legacy and experience).
- Lifetime warranty on waterproofing and foundation repair services
- Proven track record with thousands of customer reviews.
- Trusted contractor for both residential and business properties needing waterproofing services.
8. Dryshield Water Solutions
Location: Toronto & GTA
Specialty: Basement waterproofing, foundation waterproofing, and drainage solutions
Years in Business: Over 25 years
DryShield Water Solutions has positioned itself as a long-standing leader in Canada’s waterproofing industry. Serving Toronto for decades, the company delivers professional basement and foundation waterproofing services.
Their work includes exterior drainage, interior waterproofing, and foundation maintenance. Their customer-first policy and commitment to quality have made them a go-to choice for homeowners seeking reliable long-term waterproofing solutions.
Highlights
- Over 25 years of waterproofing work across Toronto and beyond.
- Strong reputation for quality workmanship and customer satisfaction.
- Offers a range of waterproofing services, including basement waterproofing, foundation drainage, and moisture control.
- Known for professionalism and reliable service.
9. Gord’s Basement Waterproofing
Location: Toronto & Greater Toronto Area
Specialty: Basement waterproofing, foundation crack repair, sump pumps, and drainage systems
Years in Business: Over 30 years
Gord’s Basement Waterproofing is a family-operated waterproofing company that has served Toronto homeowners for decades. The company focuses on protecting homes from water damage through professional basement waterproofing and foundation repair services.
Gord’s Basement Waterproofing emphasizes practical solutions and long-term protection for residential properties. Their experience working with older Toronto homes as well as newer properties allows them to tailor waterproofing strategies that address unique foundation conditions and soil environments found across the GTA.
Highlights:
Over three decades of experience in basement waterproofing services.
- Offers both interior and exterior waterproofing systems.
- Provides sump pump installation, foundation crack repair, and drainage solutions.
- Family-operated business with a strong focus on customer service.
- Extensive experience working with Toronto’s older residential foundations.
10. Wet Basements Waterproofing
Location: Toronto & GTA
Specialty: Basement waterproofing, foundation crack repair, sump pump installation, and moisture control
Years in Business: 20+ years
Wet Basements Waterproofing is a Toronto-based contractor focused on resolving water infiltration problems in residential basements and foundations. The company offers a range of waterproofing services aimed at preventing leaks, controlling groundwater, and protecting foundation structures from long-term damage.
Their waterproofing services include interior drainage systems, exterior waterproofing membranes, crack injection repairs, sump pump installations, and foundation sealing. Each project begins with a detailed property inspection to identify moisture sources and structural vulnerabilities before recommending a suitable waterproofing method.
Highlights:
- Provides basement waterproofing and foundation repair services.
- Offers crack injection and sump pump installation.
- Interior and exterior waterproofing solutions available.
- Experienced technicians serving Toronto and the GTA.
- Focused on long-term moisture and foundation protection.
Selecting the Right Waterproofing Contractor for Your Basement
Choosing the right waterproofing company ensures efficient waterproofing and underpinning. Whether you need a waterproofing contractor during the construction process or to protect your home from long-term moisture and structural issues, you need a reliable basement waterproofing company. Here’s what to consider when hiring a contractor to fix your roof, basement, and other parts of your home.
- Verify the contractor’s experience and licensing in waterproofing and foundation repairs.
- Review customer feedback to confirm the reliability and quality of workmanship.
- Ask about warranties on labour and materials to ensure long-term protection.
- Request a detailed written estimate that outlines the methods, timelines, and total cost.
Taking time to compare several contractors gives you a clearer understanding of what each potential contractor offers. A dependable waterproofing specialist will communicate clearly, recommend the most suitable method, and deliver work that stands the test of time.
Common Mistakes When Hiring Waterproofing Companies in Toronto
Homeowners often rush into waterproofing projects when leaks appear, but quick decisions can lead to costly errors. Knowing common pitfalls helps you choose a contractor who will deliver safe, durable results.
- Accepting the lowest price without evaluating the materials or method used.
- Hiring unlicensed contractors who cannot meet building code requirements.
- Overlooking warning signs such as vague contracts or limited warranty coverage.
- Ignoring poor communication or inconsistent reviews from past clients.
Avoiding these mistakes ensures your project starts with clear expectations. A well-chosen company will adhere to Toronto regulations, utilize proven waterproofing systems, and deliver dependable service from inspection to final cleanup.
Premium Waterproofing Solutions for GTA Homes in 2026
Protecting your basement starts with choosing a qualified professional. If you are comparing contractors or need guidance on the right waterproofing method, contact a trusted Toronto waterproofing specialist, such as Waterproofing PD, and request a free quote. Alternatively, schedule a free consultation and discuss your needs with their team.
FAQs
Does basement waterproofing work during the winter season?
Yes. Waterproofing can be performed in cold weather, although snow and freezing conditions may slow exterior work. Your contractor can plan around temperature changes to ensure proper sealing and curing. Interior waterproofing remains effective year-round because it does not depend on outdoor conditions.
How does shifting ground affect your basement?
Seasonal moisture intrusion and temperature changes can cause the ground to expand and contract. This movement can exert pressure on foundation walls and increase the risk of cracks, which can lead to moisture intrusion in the basement.
What is involved in a professional waterproofing assessment?
A full assessment reviews the foundation, drainage pathways, moisture readings, and any visible damage. Technicians typically document each issue in a detailed log and recommend solutions tailored to the site conditions. This level of precision ensures the chosen waterproofing method addresses the main cause of the leak.
Why should you choose a trusted contractor for waterproofing work?
Skilled employees deliver consistent workmanship and follow strict safety and quality standards. A reputable company works with passion and attention to detail, ensuring your home remains safe and dry long after the project is complete.
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What Sets Waterproofing PD Apart?
At Waterproofing PD, we’re proud to stand out as one of Toronto’s most trusted basement waterproofing companies. Our dedicated team focuses on delivering reliable waterproofing solutions to keep your basement dry, safe, and secure year-round.
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Expertise and Experience: With over a decade of hands-on experience, our experts use the latest tools and techniques to deliver top-quality basement waterproofing. You can rely on our team’s knowledge to protect your home against leaks, flooding, and water damage. -
Our Commitment to You: We are passionate about offering exceptional service that homeowners across Toronto and the GTA trust. Our focus on quality, attention to detail, and customer care has built our strong reputation in the waterproofing industry. -
Free Consultations: We provide free consultations and personalized estimates to meet your specific needs. Our team assesses your property carefully and offers customized solutions to prevent water issues before they become costly repairs.
