Do you need waterproofing services for your home yet don’t know anyone to help? Don’t worry, we can provide the right company for you.
After long hours and a few cups of coffee, lo and behold! We have rounded up nine of the premier companies in Toronto that provide the best quality of waterproofing services. They deliver top-notch workmanship & services and customer satisfaction to their clients.
Hiring one from this list already ensures that your waterproofing dilemmas will be addressed in no time. Read on and get to know your options.
1) RCC Waterproofing
| BEST FOR | Waterproofing services |
| SERVICES | Exterior Waterproofing – External Solution Interior Basement Waterproofing – Internal Solution Waterproofing Foundation Cracks Waterproofing Newer Homes – New Construction Basement Lowering/Underpinning Foundation Structural Repair Sump Pump Crawlspace Encapsulation Basement Waterproofing |
| ADDRESS | 4101 Steeles Avenue West, Suite 201 Toronto, Ontario M3N 1V7 |
| CONTACT | Toll Free: 1-888-766-2071Email: info@rccwaterproofing.com |
| WEBSITE | https://rccwaterproofing.com/ |
Founded in 1920 by John Romanelli, RCC Waterproofing is a third-generation family-owned and run company that immediately established itself as the foundation experts, working on some of Toronto’s most prestigious homes and structures. They use the best waterproofing solutions for the task and offer a lifetime warranty on all basement waterproofing projects.
Why choose RCC Waterproofing?
- 100 years in the industry
- Guaranteed Lowest Price
- Waterproofing Lifetime Warranty Guarantee
- Commercial Grade Waterproofing Products
- Permanently Dry Toronto Basements
- Experienced Waterproofing Team
- Most Referred Toronto Waterproofing Contractors
- Over 100,000 Waterproofing Projects Completed
2) Leaky Basement
| BEST FOR | Waterproofing services |
| SERVICES | Exterior Waterproofing Interior Waterproofing Sump Pump Services Underpinning Foundation Cracks Repair Waterproofing New Construction Homes |
| ADDRESS | 25 Canvarco Rd, Toronto, ON M4G 1L4, Canada |
| CONTACT | Phone: 416-766-2071Email: info@leakybasement.com |
| WEBSITE | https://leakybasement.ca/ |
Leaky Basement is a family-owned and run company where its mission for the locals of Toronto is to provide a team of foundation waterproofing experts and other basement foundation repair services to your home and ensure that you are leak-free. They stand by the quality of their work and place a premium on their customer relationships as they use and collaborate with top leading manufacturers of basement waterproofing materials and technology. Since they use the most up-to-date commercial-grade waterproofing materials and processes to ensure that your property is completely waterproofed with the best in the waterproofing industry, they guarantee that your foundation cracks will be completely waterproofed.
Why choose Leaky Basement?
- Almost 100 years of waterproofing experience
- Free Estimate & Consultation
- Premium Quality of Work & Customer Service
- Experienced Waterproofing Team
- Over 80,000 Toronto and GTA Leaky Basement Foundations Repaired and Waterproofed
3) Dryshield Waterproofing
| BEST FOR | Waterproofing services |
| SERVICES | Interior Basement Waterproofing, Exterior Basement Waterproofing, Foundation Crack Repair, Crack Injection, Sump Pump Installation, Battery Backup Systems, Crawl Space Encapsulation, Leaky Basement Repair, Wet Basement Repair, Foundation Waterproofing |
| ADDRESS | 60 Millwick Drive, Toronto, ON M9L 1Y3 |
| CONTACT | Phone: 416 361 3323 Email: info@dryshield.ca |
| WEBSITE | https://www.dryshield.ca/ |
Dryshield Waterproofing is a Canadian-owned contractor widely recognized for its expertise in basement waterproofing and foundation protection across Toronto, the GTA, and Southern Ontario. With over 25 years of continuous operation, the company has positioned itself as a long-term solution provider rather than a short-term repair service.
Their waterproofing services are built on engineering-backed methods and strict compliance with the Ontario Building Code, which adds a strong layer of trust for homeowners and property managers. Dryshield focuses on permanent solutions that address water intrusion, hydrostatic pressure, and structural vulnerabilities at the source.
One of Dryshield’s key strengths is its regional service hub model, allowing teams to tailor waterproofing strategies to local soil conditions and water table challenges. From dense urban foundations in Toronto to clay-heavy soils in the Golden Horseshoe, their approach reflects deep regional knowledge.
The company offers both interior and exterior basement waterproofing, giving clients flexibility based on budget, basement condition, and excavation feasibility. Interior systems focus on managing water pressure beneath the slab, while exterior waterproofing stops moisture before it reaches the foundation walls.
Dryshield also specializes in foundation crack repair using high-pressure polyurethane and epoxy injection methods. These techniques allow them to stop active leaks and reinforce structural integrity without unnecessary excavation.
Modern materials play a central role in their waterproofing systems, including HDPE drainage membranes and industrial-grade weeping tiles designed to exceed standard building code requirements. These components are intended to improve long-term drainage performance and reduce common failure points.
A major differentiator is Dryshield’s transferable lifetime warranty on full waterproofing systems, which adds resale value and long-term peace of mind. Combined with transparent pricing, in-house crews, and rebate assistance, the company presents itself as a premium but dependable waterproofing provider.
Why choose Dryshield Waterproofing:
- 25+ years of waterproofing experience
- Engineering-backed repair methods
- Transferable lifetime warranty
- Region-specific waterproofing expertise
- Fully insured with $5M liability coverage
- Rebate-approved contractor
- Transparent, all-inclusive pricing
- In-house trained crews
4) Canada Waterproofers
| BEST FOR | Waterproofing services |
| SERVICES | Exterior and interior waterproofing – TorontoBasement waterproofing – TorontoUnderpinning
Drain repair Sewer & drain cleaning Underpinning Concrete floors Backwater valve & sump pump |
| ADDRESS | 1750 The Queensway, Suite 153 Toronto, ON M9C 5H5 |
| CONTACT | Phone: 416-333-5325Email: info@canadawaterproofers.com |
| WEBSITE | https://canadawaterproofers.com/ |
Canada Waterproofers has over two decades of experience serving the local communities in the country. They believe in old school values which they implement through high standards of workmanship and services. To ensure the quality of service, they use the latest technology available.
Why choose Canada Waterproofers?
- 25+ years of industry experience
- 25-year lifetime warranty
- Fully licensed, insured, and WSIB-covered
- Highly trained and licensed waterproofers
- Free no-obligation estimate
5) Royal Work Corp.
| BEST FOR | Waterproofing services and concrete works |
| SERVICES | Basement waterproofing – TorontoBackwater valveBasement underpinning
Battery backup installation Drain cleaning and repair Foundation repair French drains Sump pumps |
| ADDRESS | 230 Queens Quay W, Toronto, ON M5J 2Y7, Canada |
| CONTACT | Phone: (416) 837-1077Email: http://royalwork.ca/contact-us/ |
| WEBSITE | http://royalwork.ca/ |
Royal Work is a leading, customer-focused waterproofing company that has served Toronto, GTA and surrounding areas for years. Their licensed technicians will ensure that every work will adhere to the standards set by the industry. To ensure this, Royal Work does not subcontract any work. You can rest assured that they will solve your issues in no time.
Why choose Royal Work?
- 100% satisfaction guarantee
- 25-year fully transferable warranty
- Licensed, insured and bonded
- Free estimate
6) Waterproofing PD
| BEST FOR | One-stop-shop for any wet and leaky basement problem |
| SERVICES | Basement Waterproofing Services |
| ADDRESS | 3135 Universal Dr, Unit 22A, L4X 2E6 |
| CONTACT | (416) 333-8222 | info@waterproofingpd.ca |
| WEBSITE | https://www.waterproofingpd.ca/ |
Waterproofing PD is a waterproofing company in Toronto, ON specializing in fixing wet, leaky and flooded basements. They provide you with long term solutions to ensure that you do not have to worry about a wet basement for a very long time.
Amongst all of their services, they provide interior and exterior basement waterproofing solutions, sump pump installation or repair, basement underpinning, egress window services, and more. Furthermore, they always do an in depth inspection in order to provide you with a proper, qualified assessment and the appropriate solution.
Why choose Waterproofing PD?
- Develops a long-term commitment to all clients when starting a project
- Efficient, reliable, and high quality waterproofing services
7) The City Wide Group Inc.
| BEST FOR | Waterproofing, underpinning, and drain services |
| SERVICES | Basement waterproofing – TorontoInterior and exterior waterproofingCommercial waterproofing
Wet basement repairs Underpinning services Basement lowering |
| ADDRESS | 25 Hollinger Road, East York, ON M4B 3N4 |
| CONTACT | Phone: 416-283-5500 |
| WEBSITE | https://www.citywidegroup.com/toronto |
The City Wide Group Inc. is comprised of top-notch installers and inspectors. They also utilize the most updated and advantageous technology in order to provide first-rate services. You don’t have to worry about anything when you hire the CWG for your waterproofing needs.
Why choose The City Wide Group Inc.?
- Lifetime warranty
- Award-winning services
- Coupons and discounts
8) Nusite Contractors
| BEST FOR | Waterproofing and foundation repair services |
| SERVICES | Basement waterproofing – TorontoInterior and exterior waterproofingBasement lowering
Commercial waterproofing Commercial foundation repairs |
| ADDRESS | 24 Rivalda Road, North York, ON M9M 2M3 |
| CONTACT | Phone: 416-622-7000Email: https://nusitegroup.com/contact-us/ |
| WEBSITE | https://nusitegroup.com/ |
Nusite Contractors is a local family-owned and operated business, specializing in waterproofing and foundation repair services. They have over 50 years of combined experience, making them one of the leading waterproofers in the city. Rest assured that they will deliver top quality workmanship and provide written guarantees and for your needs.
Why choose Nusite Contractors?
- Free no-obligation estimates and inspections
- 25-year waterproofing warranty
- 30+ years of industry experience
- A+ rating in BBB for over 20 years
- Fully insured & certified and fully covered by WSIB
9) AAA Waterproofing & Underpinning
| BEST FOR | Waterproofing and underpinning services |
| SERVICES | WaterproofingUnderpinning and lowering |
| ADDRESS | 1750 The Queensway, Unit 1339 Etobicoke, ON M9C 5H5 |
| CONTACT | Phone: 416-833-6095Email: info@aaawaterproofing.ca |
| WEBSITE | https://aaawaterproofing.ca/ |
AAA Waterproofing & Underpinning provides state-of-the-art basement waterproofing in Toronto. Their aim is to ensure that there is no leakage in the basement or any other part of the house where their team has worked in. Know that their company mission is to provide quality basement waterproofing and underpinning services at competitive rates.
Why choose AAA Waterproofing & Underpinning?
- Free Quote
- Finished on budget and within schedule
- Equipped with quality machines and tools
