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At Waterproofing4Less, we specialize in professional basement waterproofing that stops water damage before it starts. From aging foundation walls to high hydrostatic pressure in Toronto’s clayrich soil, our certified team delivers durable interior waterproofing and exterior foundation membranes. Combine it with sump pump installation in Toronto or a backwater valve installation in Toronto for total peace of mind.
From the brick Victorians of Cabbagetown to the modern condos of the Entertainment District, Toronto homes face a common enemy: wet basements. Torrential summer storms and fast melting winter snow expose foundation cracks and overwhelm old drain tiles. At Waterproofing4Less, our Toronto basement waterproofing combines:
• Interior waterproofing with advanced weeping tile systems
• Exterior waterproofing membranes and foundation sealants
Backed by 25+ years of local expertise and 900+ satisfied homeowners, our comprehensive approach stops foundation leaks, prevents mold growth, and protects against hydrostatic pressure—all year long.
At Waterproofing4Less, we use premium materials and cutting-edge technology to deliver optimal performance
We use this premium water-based, low VOC waterproofing product, which outperforms traditional tar-based sealants by forming a durable, flexible barrier that effectively prevents water intrusion
Our toolkit includes infrared cameras to detect hidden wet areas, moisture meters to measure unseen moisture levels, and drain cameras to inspect pipelines and sewers for blockages or damage.
We rigorously adhere to all bylaws by calling utility locates (for hydro, gas, Bell, Rogers, etc.) before excavation. This critical step prevents accidental utility damage and protects you from fines up to $12,000.
Our professional team uses these tools to ensure that we only perform work that is truly needed—never recommending unnecessary repairs for profit.
We provide a dual approach that addresses both interior and exterior waterproofing, along with specialized services such as sump pump installation, backwater valve installation, and drain repair & replacement.
Protect work areas with tarps and remove wall coverings to expose concrete, cinder block, or brick surfaces for accurate assessment.
Excavate a precise trench along the wall following detailed diagrams and properly dispose of all debris.
Install the Delta MS drainage membrane (drilling through blocks if necessary) and integrate Big O weeping tile with a filter into the drainage system.
Encase the weeping tile in gravel, backfill and re-cement the floor, then remove all tarps and thoroughly clean the area.
Safeguard the surrounding landscape with tarps and excavate down to the footing level to expose the foundation.
Clean the wall, grind out cracks into a V-shape, repair with hydraulic cement, and apply a parging mix for optimal surface readiness.
Apply a high-quality layer of Aquabloc 720-38 to form a superior waterproof barrier, then reinforce with fiber mesh and an additional 4mm poly layer for extra protection.
Install a new Big O weeper with filter, encase it with ¾” clear gravel, perform required utility locates, and backfill and compact the soil for a finished, compliant installation
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Prevents water damage to your foundation, walls, and floors, reducing the risk of costly repairs and mold remediation.
Efficient water removal minimizes repair costs while transforming your basement into a functional, attractive space that boosts property value.
Dry basements prevent mold and mildew, ensuring a healthier indoor environment and greater occupant safety.
Our installations meet local building codes, qualifying for insurance discounts and rebates while reducing moisture hazards for improved indoor air quality.
Our systems meet Toronto building codes, qualifying you for insurance discounts and municipal rebates while offering uninterrupted protection with advanced technology.
With 25+ years of experience and hundreds of positive reviews, we understand Toronto’s unique waterproofing challenges and deliver tailored, award-winning solutions.
We use state‑of‑the‑art diagnostic tools (infrared cameras, moisture meters, drain cameras) and superior products like Aquabloc 720-38 for reliable performance
Our installations follow all local bylaws, including thorough utility locates, and are backed by a 25‑year transferable warranty on waterproofing and a 3‑year warranty on sump pumps.
Our dual approach addresses both interior and exterior waterproofing, with additional services (sump pump, backwater valve, drain repair/replacement) and prompt emergency support for continuous protection.
Client: Mr. Fernandes, Leslieville
• Recurring basement seepage after April rains
• Cracked block foundation and clogged weeping tiles
• No existing sump pump or backwater valve
• Interior Waterproofing: Installed French drain and highcapacity weeping tile leading into a new sump pump pit
• Exterior Waterproofing: Excavated perimeter and applied waterproof membrane with foundation sealant
• Pump & Valve Integration: Fitted a 1⁄2 HP submersible sump pump with battery backup, plus a commercialgrade backwater valve
• Post Care: Cleaned and regraded discharge line away from the house
• Zero water ingress over two years, even during Toronto’s record‐breaking storms
• Basement humidity dropped 50%, eliminating musty odors
Toronto’s varied architecture demands tailored solutions. Here’s how we guide you:
1. Assess Hydrostatic Pressure: High in low‑lying areas like the Beaches—requires heavy‑duty exterior waterproofing.
2. Select the Right Interior System: From cementitious sealers to drain tile installations, we choose methods that suit basement layouts.
3. Integrate Secondary Defenses: Pair basement waterproofing with backwater valve installation, or drain repair & replacement for multi-layer protection.
Our expert team evaluates soil type, foundation material, and local precipitation data to recommend a complete waterproofing package designed for Toronto’s unique climate.
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Great company. Excellent quote and advice from Andrew and a very hard working remedial team. what was required and didn't upsell.
Vasyl and the crew did such a great job on our basement! Fast, professional, affordable, and friendly! 👍🏼
I have had waterproofing4Less do two separate jobs at my home. The crew, was great, they are professionals, I am very pleased with the results. The jobs were done on time, & clean up was superb.
Carl and the crew at Waterproofing4Less are the best option in southern Ontario. Carl is honest and professional while delivering a high quality of work on schedule. They are patient and will answer your questions!
They replaced one of our window wells and waterproofed/repaired the foundation after we had a water issue in our basement.
Slava went above and beyond to fix our problem. He and his crew were very professional and did an amazing job!
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Daniel Brooks
Incredible customer service, very helpful explaining the project and what is involved. Super responsive, even after the project was over with a few follow up questions. Would call them immediately if I ever needed more water proofing services!
Olivia Monroe
Carl and his team did a fantastic job, waterproofing a small section of our foundation, installing a proper drain in a window well and putting everything back together, looking snazzy.
Michael Landry
Waterproofing4Less are excellent in their trade. I would highly recommend them if you need waterproofing.
Rachel Bennett
Super professional, fast, clean, and they know exactly what they’re doing. Extremely seamless service!! Thankful to this team
Daniel Brooks
Valentine of Waterproofing4Less provided excellent service and good value for a faucet replacement and a further faucet repair.
Emily Carson
Carl and the crew at Waterproofing4Less are the best option in southern Ontario. Carl is honest and professional while delivering a high quality of work on schedule.
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Basement waterproofing prevents water intrusion and flooding, protecting your Toronto home’s foundation and ensuring a dry, safe basement even during heavy rains and rapid snowmelt.
Signs include water pooling, damp patches, subtle stains, and musty odors. These indicate moisture issues that can lead to structural damage and mold growth.
We offer both interior and exterior waterproofing using advanced membranes like Delta MS, premium products such as Aquabloc 720-38, and integrated drainage systems for comprehensive protection.
Our process includes a detailed site assessment, controlled excavation, precise installation of waterproofing materials, and rigorous testing under simulated heavy rainfall.
Yes, our installations strictly adhere to Toronto’s municipal regulations, including thorough utility locates, ensuring compliance and eligibility for insurance discounts and rebates.
We utilize infrared cameras, moisture meters, and drain cameras to detect hidden moisture and accurately assess basement conditions for targeted solutions.
Our services are backed by a 25‑year transferable warranty on waterproofing work, along with additional warranties on drain work and sump pump installations, ensuring long-term reliability.
Simply call us at 416‑333‑LEAK (2212) or email info@waterproofing4less.ca to book your free consultation and receive a customized waterproofing solution tailored to your Toronto home.
Yes! We also offer basement Waterproofing in Hamilton, Mississauga , Oakville and Burlington
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