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Find basement waterproofing pros in Thornhill, Ontario

If you’re looking to protect your basement from leaks, floods, or humidity, HomeStars can help. Our platform allows you to easily connect with professionals who can help with basement waterproofing in Thornhill, Ontario. Compare quotes, read reviews, and make the hire all in one convenient place!

Closeup of a worker’s gloved hands waterproofing the bottom of a concrete wall with blue sealant.

Some of our top rated basement waterproofing specialists in Thornhill, Ontario

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    PrimeBuild is a professional handyman and property maintenance service dedicated to delivering reliable, high-quality solutions for residential and commercial spaces. We bridge the gap between minor repairs and major renovations, focusing on precision, efficiency, and expert craftsmanship.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Murphy's Masonry is a total package residential and commercial masonry contractor servicing the GTA. Our mission is to supply our customers with top quality services at a competitive price. To develop relationships with our clients and our employees that are based on honesty, commitment and loyalty. We will collaborate with you from the beginning phases of your project to the end.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Master Paving have more than 10 years experience in excavation - footing - foundation - residential . Also residential- commercial & industrial paving . We are proud of our work that’s why we chose quality instead of quantity .

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    My name is Hector. I am a professional painter with over 10 years of experience. I also specialize in drywall, insulation, and carpentry. For the past 12 years, I have been working in Toronto, delivering high-quality results to my clients. I’m available for free estimates and would be happy to discuss your next project

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    At LC Drywall Contractors, we are specialists in Drywall, Framing, Taping, and Painting, proudly serving our clients with top-quality workmanship and attention to detail. Whether it’s a residential renovation or a large commercial project, our experienced team is dedicated to delivering outstanding results on every job. We take pride in our work and always strive to exceed expectations, ensuring that each project is completed with precision, efficiency, and the highest standard of quality.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    High quality is the most value for YN , and the projects that we develop always maintain that value. Demolition, renovation and post-construction cleaning.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    I am contractor of home renovation such as tile work paint job drywall demolition Kitchen tile bathroom tile and floor tile

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Our goal is to make hiring help feel easy: clear communication, dependable service, and people you can trust in your home. We’re proud of the work we do, and we’re building our business one satisfied customer at a time. If you need a team that’s willing to listen, adapt to what you need, and actually cares about the outcome, we’d love the opportunity to help.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    RHGroundwork is a trusted excavation and landscaping contractor serving Richmond Hill and the surrounding GTA. With years of hands-on experience, we specialize in excavation, grading, trenching, drainage solutions, interlock repair, demolition, and site preparation. We take pride in delivering professional workmanship, completing projects on time, and providing cost-effective solutions without compromising quality. Our goal is simple: to save our clients time and money while delivering a finished product built to last. When you hire RHGroundwork, you can expect reliable service, clear communication, and results you can be proud of.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    I am an experienced contractor and construction consultant with 8 years of expertise in construction and engineering. Specializing in water/wastewater infrastructure, civil engineering, and construction management, I offer hands-on contracting services and expert consulting based on my extensive industry knowledge. Whether you’re seeking project execution or professional guidance, I provide efficient, high-quality solutions tailored to your needs.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    We have over 30 years convine experience on preforming various task such as supervising multiple job sites at the time, restoration,renovation contrete repair, foundation wall repair and waterproofing ,waterproofing, ashphalt repairs, mold remediation, drywall repairs, demolition, concrete forming, wood work such as decks, fences, framing and others, caulking in low rise commercial and residential low rise repairs, garage repairs, residential and commercial power washing. Experience in working at heights, boom lift and power tools such as excavator and more Certified credentials. Register company with WSIB And bonded

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Master renovation is a great company.We do the work 100% garante and we do the job with experience 20 years .lot’s of building in Toronto we Done de work

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  • Basement Waterproofing Specialist in Thornhill, Ontario
    • Best of Awards 2021

    We at Rock Bottom Underpinning have a team of well-experienced and qualified professionals. Our work is specialized and requires skills that not every company employees possess. We are constantly going through specialty training and we always use high-quality tools, materials and equipment to ensure a professional finished product. Our employees are the foundation of our company and your home. Our professionals also extend beyond our company and include a list of amazing;Structural Engineers and Engineering firms, Architects and Architectural firms, Mechanical Engineers and Mechanical Engineering firms, Heating and Air Conditioning partners, Electrical firms, plumbing specialists that we have trusted throughout the years. We have all of the support required to make sure your project is completed professionally, on time and on budget. Rock Bottom Underpinning has been providing top-quality services to its clients for over 35 years. We treat every customer with the respect they deserve. Our team provides professional customer service to ensure that your experience is a great one. Our team specializes in underpinning, basement additions, basement walkouts and in-floor heating, no matter how complex the job may be. We provide outstanding workmanship and exceptional service, building our reputation on honest services that our customers can trust. Our licensed and insured team strives to do their jobs with the utmost excellence and professionalism. We’ll make sure that your project runs smoothly and seamlessly. Our team gets in, gets the job done, and gets you back to your life!

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    WiPaint Plus are the Masters of LUXRENOS. We deliver High quality work at a fair price! Our company carries over 35 years of experience in : construction, demolition, property maintenance/ management, and professional cleaning. We pride ourselves in continuing growth with new systems and technologies which improve the quality,cleanliness and efficiency of our work. We strive to ensure all our clients needs are always taken care of to the very last detail.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Need a General contractor, Window Contractor, Kitchen Renovation Company, Electrician, Handyman, Carpenter, Plumber, Tiler, Bathroom Renovation Company, Interior designer, Concrete Specialist, Condominium/Apartment Specialist, Interior decorator, HVAC contractor & Architect based in York, Ontario or nearby? Zonetto can help you. We pride ourselves on the quality work that we deliver to each and every client. Contact us to talk about your job and get a quote.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    My name is Nicholas. I have been in construction for about 7 years. I have worked in commercial buildings, residential homes across the GTA. My work ranges from hanging paintings, mounting tvs, painting, to basement renovation. I take pride in my work. My work is not done until employer is satisfied. When I am hired for a job, i leave not stone unturned until the work is completed.

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4.7

Top rated Basement Waterproofing Specialists

Our Basement Waterproofing Specialists in Thornhill, Ontario, are rated 4.7 out of 5 based on 45 reviews from homeowners like you.

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What basement waterproofing services are available in Thornhill, Ontario?

Pros can waterproof basements from the interior, the exterior, or using a combination of techniques. The right service depends on whether you need full waterproofing or just touch-ups.

Here are some common basement waterproofing services in Thornhill, Ontario:

  • Installation of interior drainage systems: a perimeter drain installed along the interior footing collects and redirects water to a sump pit for removal.
  • Sump pump installation and replacement: often handled by a [plumber](https://www.homestars.com/plumbing/plumber-pros/Thornhill, Ontario), a pump installed in the sump pit removes accumulated groundwater and directs it away from the foundation.
  • Exterior waterproofing: excavation around the foundation allows for membrane application and drainage board installation to block water at the source.
  • Crack injection: epoxy or polyurethane foam is injected directly into foundation cracks to seal them against water intrusion.

No matter your needs, it’s easy to find basement waterproofing pros near you who can help. Just post your project on HomeStars now, and available contractors in your area can reach out!

What are the average costs of basement waterproofing pros in Thornhill, Ontario?

Basement waterproofing costs vary widely depending on the method, the size of the foundation, and where repairs are concerned, the extent of the damage. Labour typically runs between $50 and $150 per hour, depending on the service and complexity of the job. Materials and equipment, such as excavation machinery, may add additional costs.

Typical costs for common basement waterproofing services in Thornhill, Ontario:

  • Installation of interior drainage systems: between $3,000 and $10,000 for a full perimeter system in an average-sized basement
  • Sump pump installation and replacement: between $500 and $2,000 depending on pump type and whether a backup system is included
  • Exterior waterproofing: between $10,000 and $30,000 depending on foundation size and depth of excavation required
  • Crack injection: between $300 and $800 per crack depending on length, depth, and material used

HomeStars tip: To ensure you get the most accurate costs for Thornhill, Ontario, make sure to get everything written down in an itemized quote. This avoids misunderstandings and supports transparency and clear communication for both you and the contractor.

How to find basement waterproofing specialists in Thornhill, Ontario with HomeStars

Finding a basement waterproofing pro in Thornhill, Ontario can feel overwhelming, especially when water damage requires prompt attention. HomeStars makes it easy to connect with the right pro for your project. Just follow these simple steps:

  1. Start by posting your project. Provide a clear description of your basement waterproofing needs and, if possible, include photos to get precise quotes.
  2. Receive offers from available pros, review work history, and read customer feedback for basement waterproofing in Thornhill, Ontario.
  3. Connect with basement waterproofing specialists in Thornhill, Ontario to discuss your project, request and compare quotes, and ask any questions.
  4. Hire the right pro to get the job done and leave a review based on your experience.

HomeStars tip: Once your project is done, make sure to leave a review. Our review system ensures that pros are rewarded for good work and held accountable for any problems.

Pros on HomeStars undergo checks at registration – such as ID documents, company details, and certifications for regulated jobs and skill assessments – allowing you to hire with confidence.

Extra peace of mind with the HomeStars Confidence Program

The HomeStars Confidence Program is designed to give you added confidence when hiring through our platform. If your job qualifies under the Program and we determine that a claim meets the Program requirements, HomeStars may cover what you owe the Pro on an eligible job with a quote of up to CAD $10,000, in line with our terms and conditions.

FAQ: Common questions about basement waterproofing in Thornhill, Ontario

How long does basement waterproofing last in Thornhill, Ontario?

Most professional waterproofing solutions in Thornhill, Ontario are designed to last 10 to 25 years depending on the method used and the quality of installation. Sump pumps typically require replacement every 7 to 10 years.

Will waterproofing fix existing mould in my basement?

Waterproofing addresses the source of moisture but will not remove mould that has already formed. A separate mould remediation service is typically required before or after waterproofing work is completed.

What if my basement waterproofing project in Thornhill, Ontario requires excavation?

Exterior waterproofing projects in Thornhill, Ontario often require excavation around the foundation, which adds complexity, time, and cost to the overall job. It is important to work with pros who can coordinate this process effectively. [Local excavation specialists](https://www.homestars.com/gardening-outdoors/excavation-specialist-pros/Thornhill, Ontario) are available on HomeStars to walk you through what to expect and collaborate with your preferred basement waterproofing pro.

Does homeowner insurance cover basement waterproofing in Thornhill, Ontario?

In most cases, standard home insurance policies do not cover waterproofing as it is considered a maintenance issue rather than sudden damage. However, water damage resulting from a specific event such as a burst pipe may be covered. It is worth reviewing your policy or speaking with your insurance provider for clarification.

How do I know if a basement waterproofing pro is right for my project?

Not all waterproofing projects are the same, and finding a pro with the right experience for your specific situation is important. Reading reviews from homeowners who have had similar work done can help you make a more informed decision. Browse basement waterproofing pros on HomeStars to compare ratings and reviews from real homeowners in Thornhill, Ontario.

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