Some of our top rated basement waterproofing specialists in Claremont
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Best of the Best 2025
Best of Awards 2026
About Canada Waterproofers Welcome to Canada Waterproofers, an owner-operated waterproofing, plumbing, drainage and foundation water management company serving homeowners across Southern Ontario since 1998. For more than 27 years, our approach has remained simple: identify the real source of the problem, explain it clearly, recommend only the work that is actually necessary, complete it properly and stand behind the result. Canada Waterproofers has helped protect more than 15,000 homes and operates with a team of 20+ experienced technicians across basement waterproofing, foundation repair, plumbing, sewer and drain services, sump pumps, backwater valves, underpinning and flood prevention. We understand that water problems are rarely as simple as they first appear. A wet basement might be caused by a foundation crack, hydrostatic pressure, damaged weeping tile, poor grading, a failed sump pump, sewer backup, drainage problem or plumbing issue. That is why we focus on diagnosing the source first rather than automatically recommending the largest or most expensive repair. Our goal is not simply to sell a waterproofing or plumbing service. Our goal is to understand why the problem is happening and provide the most practical long-term solution for the home. Owner-Operated With Hands-On Expertise Canada Waterproofers is owned and operated by Carl McDowell and Slava Koval, who remain actively involved in the company, assessments, projects and quality control. Our leadership brings professional expertise across waterproofing, plumbing, drainage, foundation repair, building renovation, water damage restoration and underpinning. Carl McDowell is an Owner, Senior Waterproofing Consultant and Master Plumber with 28 years of experience listed on his professional profile. His credentials include: - Master Plumber - Ontario licensed plumber, licence #13947296 - IICRC Water Damage Restoration Technician - Building Renovation Licence - Drain Layer Licence - Preferred Contractor for Halton Region Slava Koval is an Owner and Master Plumber whose qualifications include: - Master Plumber - Licensed waterproofer - Licensed building renovator - Certified water damage restoration technician - Hands-on involvement in installations and quality control This combination of plumbing, waterproofing and drainage knowledge allows our team to evaluate the entire water management system rather than looking at one isolated symptom. We Solve the Source, Not Just the Symptom One of the most important principles at Canada Waterproofers is our root-cause-first approach. Before recommending major work, we look at why water is entering or why a plumbing or drainage system is failing. For example, water at the basement wall and floor joint may involve groundwater or foundation drainage. A recurring sewer blockage may require a camera inspection rather than repeated drain snaking. A sump pump that runs constantly may be responding to another drainage problem. A foundation crack may need a targeted repair rather than a full excavation. Correct diagnosis can prevent unnecessary work and potentially save homeowners thousands of dollars. If a smaller repair can properly solve the problem, that is the solution we want our customer to understand. ##Complete Waterproofing, Plumbing and Drainage Services Canada Waterproofers provides a wide range of residential services under one experienced team, including: - Interior basement waterproofing - Exterior basement waterproofing - Basement leak repair - Foundation crack repair - Foundation drainage systems - Weeping tile installation and repair - French drain installation - Sump pump installation and replacement - Battery backup sump pump systems - Backwater valve installation - Drain cleaning and unclogging - Drain snaking - Hydro jetting - Sewer camera inspections - Sewer backup service - Sewer and drain repair - Sewer line replacement - Plumbing services - Basement underpinning - Basement lowering - Flood prevention solutions - Emergency waterproofing services - Emergency plumbing and drainage services Our ability to work across waterproofing, plumbing, sewer systems and drainage is especially valuable on complicated water problems because these systems often interact with one another. Instead of requiring homeowners to coordinate several different contractors, Canada Waterproofers can assess the broader water management problem and determine which system actually requires attention. Professional Drain and Sewer Diagnostics For recurring drain and sewer problems, guessing can become expensive. Canada Waterproofers uses modern diagnostic and service equipment including sewer camera inspections, professional drain-clearing equipment and hydro jetting where appropriate. Camera inspections can help identify problems such as: - Root intrusion - Recurring blockages - Damaged sewer pipe - Pipe deterioration - Misaligned sections - Poor drainage conditions - Obstructions inside the line The objective is to understand what is happening inside the system before recommending a major repair whenever practical. #24/7 Emergency Service Water and drainage emergencies do not always happen during regular business hours. Canada Waterproofers provides 24/7 emergency waterproofing and plumbing-related service for urgent situations involving water entry, drainage problems, sewer backups, sump pump failures and related emergencies. When water is actively entering a home or a sewer system is backing up, fast professional assessment can help limit further damage and determine the appropriate next step. ##Free On-Site Assessments and Written Estimates Canada Waterproofers offers free on-site assessments and free estimates with no obligation for qualifying services. Before work begins, our goal is to clearly explain: - What we believe is causing the problem - What repair we recommend - Why that repair is appropriate - What the project will involve - What the expected cost will be We believe homeowners should understand what they are paying for before committing to a project. ##Lifetime Transferable Warranty Qualifying Canada Waterproofers waterproofing systems are backed by a lifetime transferable warranty, subject to the applicable written warranty terms and exclusions. For homeowners, a transferable warranty provides additional long-term confidence because qualifying warranty protection can remain associated with the waterproofing system even if ownership of the home changes. We believe a waterproofing company should not disappear after the installation is complete. Long-term accountability matters. Price Match Guarantee Canada Waterproofers also offers a Price Match Guarantee for comparable work quoted by a fully licensed, WSIB-registered and insured contractor, subject to applicable terms. Price should always be considered alongside the proposed scope, materials, contractor qualifications, insurance, warranty and installation method. Our objective is to provide competitive pricing without sacrificing the quality of the repair. Licensed, Insured and WSIB-Covered Canada Waterproofers is fully licensed, insured and WSIB-covered. Our current company information includes $5 million in liability insurance coverage, helping provide additional protection and confidence for homeowners undertaking waterproofing, plumbing, drainage and foundation work. Professional licensing, insurance and WSIB coverage are especially important when work involves excavation, plumbing systems, structural components, foundation drainage or other significant parts of a home. ##Experienced In-House Crews For qualifying waterproofing services where applicable, Canada Waterproofers uses experienced in-house crews rather than subcontracting the installation. This gives us greater control over workmanship, training, project standards and accountability. Our owners and experienced team remain involved in ensuring projects are completed according to the required scope and quality standards. BBB Accredited With an A+ Rating Canada Waterproofers is a BBB Accredited Business with an A+ rating. We have built our reputation through decades of work across waterproofing, plumbing, drainage, foundation repair and flood prevention, supported by a strong third-party review presence across HomeStars, Google, TrustedPros and other platforms. Customer reviews remain one of the most important measures of our work because they reflect the experiences of homeowners after the project has actually been completed. ##Multi-Year Award-Winning Company Canada Waterproofers has received 20+ industry awards and recognitions over the years. Our HomeStars recognition includes awards documented across multiple years, including recognition in 2017 and from 2019 through 2026. Recent HomeStars recognition includes: - HomeStars Best of the Best 2025 - HomeStars Best of Awards 2026 Canada Waterproofers was also recognized with: - Best of TrustedPros 2020 Our recognition is meaningful to us because it reflects years of consistent service rather than a single project or short period in business. Recognized Industry Expertise Our expertise has also been recognized beyond customer reviews and awards. In 2026, HomeStars consulted Carl McDowell of Canada Waterproofers as an expert for its basement waterproofing guide, providing another independent signal of the professional knowledge behind our company. Carl is also presented as a Preferred Contractor for Halton Region, supporting our long-standing experience serving homeowners throughout Oakville, Burlington, Milton and the surrounding Halton communities. ##Permit and Rebate Assistance Certain flood prevention projects, including qualifying sump pump and backwater valve installations, may involve municipal permits or rebate programs. Where applicable, Canada Waterproofers can help homeowners understand relevant permit and rebate requirements and assist with documentation related to qualifying projects. Municipal programs change over time, so eligibility should always be confirmed before work begins. ##Service Areas Across Southern Ontario Canada Waterproofers provides waterproofing, plumbing, drainage and foundation services throughout Southern Ontario. Our verified public office locations include: - Toronto - Mississauga - Oakville We also serve homeowners throughout communities including: - Brampton - Burlington - Milton - Hamilton - Vaughan - Richmond Hill - Markham - Scarborough - Etobicoke - North York - Ajax - Pickering - Whitby - Oshawa - St. Catharines - Niagara Falls - Niagara Region - Kitchener - Waterloo - Cambridge - Guelph - Brantford - London - Barrie - Peel Region - Halton Region - York Region - Durham Region - Hamilton Region - Niagara Region - And surrounding Southern Ontario communities ##Old-School Values With Modern Technology Our company combines modern waterproofing, plumbing and diagnostic technology with values that have guided us since 1998. We believe in: - Honest recommendations - Clear communication - Transparent pricing - Proper diagnosis - Professional workmanship - Respect for the customer's property - Attention to detail - Long-term solutions - Accountability after the job is complete We do not believe homeowners should be pressured into unnecessary repairs. Our responsibility is to explain what we find, provide practical options and help the homeowner make an informed decision. ##Our Commitment to Every Homeowner Every home is different, and every water problem deserves to be properly investigated. Whether we are dealing with a small foundation crack, a clogged drain, a failed sump pump, a sewer backup, a backwater valve, deteriorated weeping tile, an exterior waterproofing project or a complete basement drainage system, the principle remains the same. Find the source first. Repair what is necessary. Use the right method and materials. Complete the work properly. Keep the homeowner informed. Stand behind the result. With more than 27 years of experience, 15,000+ homes protected, 20+ expert technicians, licensed Master Plumber leadership, professional water damage restoration expertise, $5 million liability insurance, WSIB coverage, lifetime transferable warranties on qualifying waterproofing systems, 24/7 emergency service, a Price Match Guarantee, multi-year industry recognition and hands-on owner involvement, Canada Waterproofers continues to provide homeowners across Southern Ontario with experienced, accountable water management solutions. Canada Waterproofers. Find the source. Fix what is necessary. Do it properly. Stand behind it.
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At Qupa Construction Inc, we specialize in paving, interlocking, landscaping, home renovations, and general contracting services across the Greater Toronto Area. With over 30 years of combined hands-on experience, our team focuses on quality workmanship, reliable service, and clean, professional results on every project. From driveways, walkways, and backyard transformations to full interior renovations and custom construction work, we work closely with homeowners to deliver practical and long-lasting solutions tailored to their needs. We take pride in honest communication, attention to detail, and completing projects safely and efficiently. Fully insured and committed to customer satisfaction, we aim to make every project smooth, organized, and stress-free from start to finish. All of our work is backed by a workmanship guarantee for added peace of mind.
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The lionscape construction company maintains high standards of quality and productivity that satisfy the client in every project, always delivering and building with quality.
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- Best of Awards 2026
Welcome to Design & Stone Hardscape, a leading hardscape company dedicated to transforming outdoor spaces into stunning, modern, functional environments. Based in Toronto/GTA, we specialize in interlock, concrete, excavating, landscape and water proofing. At Design & Stone Hardscape, our mission is to blend creativity, craftsmanship, and customer satisfaction in every Hardscape project. We believe in delivering durable and aesthetically pleasing outdoor solutions that stand the test of time. With a team of skilled professionals, we excel in a variety of hardscaping services, including patio installations, retaining walls, paver driveways, and outdoor living spaces. Our expertise lies in interlocking and we are equipped to handle projects of any scale. Quality is at the core of everything we do. From meticulous planning to the use of premium materials, we ensure that every hardscaping project meets the highest standards of craftsmanship. Our goal is to exceed your expectations and create outdoor spaces of your dreams. Our clients' satisfaction is our greatest achievement. Don't just take our word for it—read what our clients have to say about their experience with Design & Stone Hardscape. We take pride in turning their hardscape visions into reality. Give us a call - (437) 971-5966
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From pool openings and closings to demolition and foundation waterproofing — I do it all. I’m a versatile handyman serving the Greater Toronto Area with experience spanning landscaping construction (interlock, pavers, retaining walls), roofing repairs, drywall, carpentry, concrete work, fencing, garage doors, painting (interior/exterior), window and door installations, light electrical, plumbing fixtures, appliance installs, pressure washing, pool maintenance, junk removal, gardening, welding, and pretty much everything in between. My skills come from the ground up. My father is a condo developer in Mongolia — I grew up on job sites, watching and doing real construction work from a young age alongside experienced crews. That hands-on upbringing, combined with my Civil Engineering Technology diploma and current studies toward a Civil Engineering degree at McMaster University, means I bring both deep practical skill and technical knowledge to every job. I’m 30, reliable, have my own vehicle, and will show up on time. I’m trilingual in English, Russian, and Mongolian, and I work with integrity — if I’m ever unsure about something, I’ll say so and figure it out properly rather than guess. No shortcuts, no excuses. Do it once and right
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We specialize in making sure your home has insulation correctly installed and exact amount in order to meet R Values. Our team is specialized in removal and installation of drywall and even as far as plastering and painting.
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Cestrum Home Design & Innovation Corp. is a professional renovation and interior design company based in North York, serving Toronto and the entire GTA. We specialize in full-service home renovations, including: Main floor and full-home renovations Basement finishing and remodelling Custom kitchens and luxury bathrooms 3D design renderings and project planning Professional residential painting Interior design and space optimization Our team brings over 15 years of hands-on experience, combining architectural knowledge, advanced 3D visuals, and fine craftsmanship to deliver elegant and functional spaces. From modern open-concept remodels to classic basement upgrades, we ensure every project is delivered on time, on budget, and with long-lasting results. At Cestrum, client satisfaction is our top priority. Whether you’re updating a condo, remodeling a family home, or transforming a basement into a legal suite, we guarantee quality, clarity, and care — from concept to completion.
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TSR PEST CONTROL & WILDLIFE REMOVAL offers you trusted, safe, and reliable pest and wildlife control services across the Greater Toronto Area. TSR is a fully licensed and insured, Canadian-owned company that guarantees the state of the art pest control and wildlife removal solutions. Our staff have over thirty years' experience in the pest control industry and can quickly detect and solve your pest problem. We will be glad to assess the pest and wildlife situation in your home or business on short notice and identify the most effective pest control action plan. An essential part of our pest control programs focuses on eliminating the source of the pest, in addition to treating the existing pest population within the structure. TSR has access to the right tools and expertise to help you achieve a pest-free environment and remain pest-free in the long run.
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R&A Insulation Services is a professional insulation company based in Toronto, specializing in fiberglass attic insulation and energy efficiency upgrades. We take pride in providing clean, uniform, and high-quality installations that help homeowners save on energy costs while keeping their homes comfortable all year long. Our team combines experience, precision, and reliability always focusing on customer satisfaction and safety. Whether you need attic insulation, insulation removal, or top-up service, we’re ready to deliver exceptional results.
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ELJ Contracting delivers high-quality craftsmanship, reliable project management, and tailored solutions for your residential and commercial needs. From concept to completion, we pride ourselves on clear communication, attention to detail, and building spaces that last.
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- Best of the Best 2024
- Best of Awards 2024
DRAIN...WATER...PLUMBING...WATERPROOFING ***** SERVICES ***** - DRAIN EMERGENCY'S !!! , - BLOCKED DRAIN !!! - PREVENT BASEMENT FLOODING !!! - BACK WATER VALVE INSTALLATION - DRAIN BACKUP PREVENTERS INSTALLATION - DRAIN BACKFLOOW PREVENTERS - DRAIN BACKFLOW VALVES - LEAD WATER PIPE REPLACEMENT !!! - LOW WATER PRESSURE? - LEAD WATER PIPE REMOVAL !!! - INCREASING WATER PRESSURE, - DRAIN SNAKING / CLEANING, - DRAIN ROOTER, - DRAIN VIDEO CAMERA INSPECTION, - EMERGENCY DRAIN/SEWER - UNCLOGGING/SNAKING , - DRAIN / SEWER - UNDERGROUND - “HOUSE INSPECTIONS” - TREE ROOTS REMOVAL FROM DRAIN PIPE, - PLUGGED DRAINS, - EMERGENCY DRAIN SERVICE / REPAIR , - DIGGING DRAINS INSIDE BASEMENTS, - EXCAVATING SEWER OUTSIDE, - DRAIN PIPE REPAIRS , - NEW DRAIN PIPES INSTALLATION , - DRAIN / SEWER PREVENTIVE MAINTENANCE , - FLOOR DRAIN INSTALLATION, - UNDERGROUND DRAIN/SEVER ACCESS POINT - INSTALLATION For Drain Video Inspections, - SUMP PUMPS & SUMP PUMP PITS INSTALLATION , - BATTERY BACKUP SUMP PUMPS SYSTEMS - SEWAGE EJECTOR INSTALLATION , - BASEMENT WALLS WATER PROOFING , - DRAIN PIPE REPLACEMENT , - DRAIN/SEWER CLEANING , - FRENCH DRAIN INSTALLATION.
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Hello! I'm Charles, father of two beautiful kids. I am an independent contractor specializing in any concrete work, interlocking and landscaping. As an independent contractor, I bring a high level of self-sufficiency and project management expertise to ensure smooth execution. I'd be happy to discuss your project further and explore how my skills and experience can contribute to your success.
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MR WATERPROOFING has been operating in GTA for over a decade now with 10+ years of industry exp, Leading Provider Of Waterproofing Solutions For Commercial & Residential Buildings
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Hi everyone we do any kind of demolition and also renovation example painting and flooring and drywall we also do fence repairs or deck and much more trust my experience just drop me a message 😊
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Hi, I’m Maor, a dedicated contractor and tradesman with over 20 years of experience in the industry. From residential renovations to large-scale commercial projects, I take pride in delivering high-quality craftsmanship with honesty and reliability. Beyond the job site, I’m a devoted family man who understands the importance of building not just strong structures, but also strong relationships. I treat every project as if it were for my own family—ensuring attention to detail, transparency, and top-notch results. Whether you’re looking to remodel your home, start a new build, or need expert advice, I’m here to help. Let’s bring your vision to life!
