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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

    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? Master art 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

    Caulking services Caulking re-caulking in GTA and Toronto ◆CAULKING SERVICES We can help you find a caulking And sealant solution -OUR SERVICES: •doors •windows •garages •pipes •Expansión & control joints •Exterior openings (windows&doors) •Granite, Marble, Precast & Tile •Hardie board siding •Walkways & Patios •Stucco •Mortar repair

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    I'm France, a concrete and stone contractor serving Vaughan, King City, Richmond Hill, Scarborough, Toronto, Pickering and Brampton. My work covers concrete forming, poured walkways, driveways and patios, stone work, landscaping, and spring planting. I've poured everything from residential driveways to helicopter pads — if it can hold a helicopter, it can hold your car. I also take on smaller jobs like repairs and fixture replacements around the house. As a union carpenter (Local 27), I bring professional training to every job. I show up on time, do it right the first time, and stand behind my work.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    We are a professional brick and stone masonry company with over 8 years of experience serving the GTA. Our team specializes in a wide range of services, from custom builds and full-home facades to small repairs and restorations. We take pride in delivering high-quality craftsmanship, on time and on budget.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Ace Roofing And Masonry delivers dependable roofing, waterproofing, and masonry solutions, combining skilled workmanship, premium materials, and lasting protection for every residential and commercial property. From roof repairs to foundation restoration, our experienced team provides reliable services designed to improve durability, safety, appearance, and long-term value with confidence.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    DP Contracting Services is a trusted business pecializing in residential and light commercial renovation, maintenance, repair, and construction services. We are committed to delivering quality craftsmanship, dependable service, and practical solutions that enhance the value, functionality, and appearance of every property we work on. With over 25 years of industry experience, our team brings extensive expertise in general contracting, building maintenance, glazing, renovations, and property improvement. Every project is approached with professionalism, attention to detail, and a commitment to exceeding client expectations. Whether undertaking a complete home renovation, repairing damaged structures, installing fixtures, or providing routine maintenance services, DP Contracting Services prides itself on completing projects safely, efficiently, and to the highest standards of quality.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    More than 10 years of experience. We do any kind of work. From installing a shelf to a luxurious repair. (screw, assemble, disassemble, seal, paint), and much more. We work in Toronto and GTA

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Premium Landscaping is a professional company specializing in wood-plastic and aluminum fencing, deck construction, and basement waterproofing. With over ten years of industry experience, we are a trusted expert in outdoor landscaping and waterproofing solutions in the Greater Toronto Area. Our goal is to provide high-quality, durable, and aesthetically pleasing outdoor solutions for our customers. Our Services • Wood-Plastic & Aluminum Fencing: Offering a variety of styles and colors, our fences combine durability and beauty, making them ideal for both residential and commercial properties. • Basement Waterproofing & Leak Repair: We provide professional solutions to address water leakage issues, using advanced waterproofing techniques to keep your basement dry and secure. Why Choose Us? • Extensive Experience: Over a decade of industry expertise ensures top-quality service. • High-Quality Materials: We use durable, eco-friendly wood-plastic and aluminum materials for long-lasting performance. • Skilled Professional Team: Our expert construction team delivers efficient and precise project execution. • Customer-Centric Approach: We offer customized solutions tailored to meet your specific needs.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Professional concrete worker with over 8 years of experience in concrete formwork, foundations, walls, columns, slabs, and finishing. I take pride in delivering high-quality workmanship, arriving on time, and completing every job safely and efficiently. I also offer painting and moving services. Customer satisfaction is always my top priority.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    At Precision Concrete Worx we don't just pour concrete we build spaces families love. With 3 decades of experience, we believe collaboration is the key to great results. That is why we keep communication open, timelines clear, and your vision at the centre of every decision.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    TOP Service in Ontario & GTA | Commercial 🏬, Residential🏠 | Available for small and large projects | Short-notice, After hours.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    We build any size of home renovations, restoration, remodel, from start to finish including design and build. We also build home additions, separate units, structural work and design. We can also help you with the framing, excavation, foundation, and more for your project. With more than 40 years of experience, we service a Toronto, GTA, and surrounding cities such as Barrie, Hamilton, Kitchener, Waterloo and more cities.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    With 25 years of experience we are here to give you a permanent solution to all your water needs We offer different types of waterproofing solutions at a competitive price with a lifetime transferable warranty We offer underpinning services as well as drawings and permits to provide you with a peace of mind from start to finish of the entire project We service most areas in the GTA such as but not limited to: Toronto, Richmond Hill, Newmarket, Etobicoke, Brampton Payment financing options available upon request Call or email us today for a free no obligation quote 6478384751 aluneedltd@outlook.com

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Bay Design Build is a Toronto-based company specializing in custom Build and full-home renovations. We create stylish, functional living spaces using locally sourced materials and expert craftsmanship. From kitchens and bathrooms to complete home transformations, our team of interior design, architecture, and construction professionals works closely with clients to bring their vision to life. Our Services: General Contracting Bathroom Renovations Kitchen Renovations Basement Renovations Home Addition Condo Renovations

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    Skyline Mechanical Contracting provides HVAC installation and repair for homes and businesses across the GTA air conditioning, furnace installs, and ductwork. With years of hands-on experience on residential and commercial projects, we deliver honest assessments, clear quotes, and reliable, on-time work. Licensed and insured. Whether it's a new AC before summer or a furnace repair before winter, we get it done right the first time.

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  • Basement Waterproofing Specialist in Thornhill, Ontario

    I have enough experience in the entire construction branch and I like to be responsible and organized in my work.

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4.8

Top rated Basement Waterproofing Specialists

Our Basement Waterproofing Specialists in Thornhill, Ontario, are rated 4.8 out of 5 based on 49 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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