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Find basement waterproofing pros in Ajax, Durham

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 Ajax, Durham. 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 Ajax, Durham

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  • Basement Waterproofing Specialist in Ajax, Durham

    Dominex Concrete & Construction is a family-owned company proudly serving homeowners and businesses across the Greater Toronto Area. We specialize in concrete sidewalks, driveways, curbs, concrete pads, stairs, repairs, removal and replacement. We approach every project—large or small—with hard work, honesty and attention to detail. For us, concrete work is more than completing a job. It is about earning your trust and delivering a strong, clean and professional result that you can feel proud of. We communicate clearly, respect your property and work closely with you from the initial estimate through project completion. When you choose Dominex, you receive dependable service, quality workmanship and a team that treats your project as if it were our own. Contact us today for a free estimate. Let’s build something strong together.

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  • Basement Waterproofing Specialist in Ajax, Durham

    With over 20 years of combined experience, Mendes Structural Restoration Inc. (MSRI) was founded by two brothers united by a commitment to quality craftsmanship and genuine client satisfaction. MSRI proudly serves Greater Toronto Area and Southern Ontario, offering specialized Commercial, Industrial, Residential, and Institutional services across this diverse region. Our team ensures every project not only meets rigorous quality benchmarks but is executed with a strong commitment to safety. We specialize in brick repair and repointing, concrete, waterproofing, caulking, interlocking, Vapor barrier, stucco, expansion joints, power washing, painting and traffic topping.

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  • Basement Waterproofing Specialist in Ajax, Durham

    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 Ajax, Durham

    Northwind Concrete & Pools specializes in quality concrete work and custom pool installations. We take pride in delivering reliable craftsmanship, honest service, and lasting results for every project.

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  • Basement Waterproofing Specialist in Ajax, Durham

    For over 70 years, residential, industrial and commercial clients in Toronto and the surrounding areas have trusted Anthony Paving Co. Ltd. for affordable and efficient paving services. Anthony Paving has provided paving solutions to homes, businesses, playgrounds and properties throughout the area, and will bring its decades of experience to your next paving project! No project is too large or too small for our friendly team. Anthony Paving begins each job with a free estimate and a written guarantee. Call us now to speak to our friendly team!

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  • Basement Waterproofing Specialist in Ajax, Durham

    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 Ajax, Durham
    • Best of Awards 2026

    Maple Star Group has been serving the landscape industry for 8+ years, specializing in both construction and maintenance. Our experience spans across a variety of projects, including commercial properties, high-rise condominiums, subdivisions, and custom homes. The construction division excels in concrete, interlocking, woodwork, gardens, and asphalt, delivering high-quality workmanship. The maintenance division is dedicated to keeping gardens vibrant and lawns lush. Maple Star Group strongly believes in the importance of client satisfaction, with the philosophy that "Your Image Is Our Reputation," viewing our clients as the true representation of our brand.

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  • Basement Waterproofing Specialist in Ajax, Durham

    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 Ajax, Durham

    Hi! I have 3 years of hands-on experience in concrete and construction work. I currently work full-time in the industry and take on additional projects on the side. My experience includes: * Concrete slabs and slab-on-grade * Concrete forming and formwork * Foundation walls and footings * Retaining walls * Concrete curbs and sidewalks * Concrete repairs and patching * Concrete finishing and other concrete-related work I take pride in quality workmanship, attention to detail, reliability, and completing every job properly. Whether you need a small concrete repair or help with a larger project, I’m happy to discuss your needs and provide a fair quote.

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  • Basement Waterproofing Specialist in Ajax, Durham

    MC Solutions is a trusted drywall and renovation company serving the Greater Toronto Area. We specialize in high-quality custom drywall, residential and commercial projects, insulation, taping, and complete interior renovations. With a strong focus on precision, safety, and clean finishes, we deliver reliable workmanship for homeowners, contractors, and businesses. Our team provides efficient timelines, competitive pricing, and results that elevate every space. Whether it’s a small repair or a full-scale renovation, MC Solutions is committed to delivering professional service and lasting quality.

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  • Basement Waterproofing Specialist in Ajax, Durham

    We do job with warrantee and affordable price

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  • Basement Waterproofing Specialist in Ajax, Durham

    MACAULAY CAULKING IS FULLY QUALIFIED TO PERFORM ANY TYPE OF RESIDENTIAL, COMMERCIAL AND INDUSTRIAL SERVICE WITH HIGH END QUALITY WORK. WE TAKE PRIDE IN OUR WORK! You can trust our team of devoted professionals to provide you with excellent service in a timely fashion. Macaulay caulking can make your home look more aesthetic, in addition to preventing leaks, seepage and pest control, making it more comfortable and energy efficiency. Macaulay caulking is fully insured, qualified, and licensed to perform any type of low-rise and high-rise caulking project. “At Macaulay Caulking, we are dedicated to using products of highest quality that’s not only designed to prevent leaks and seepage but also safe to your health and the environment”.

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  • Basement Waterproofing Specialist in Ajax, Durham

    Transforming Your House into a Dream Home At Nora Arta, we blend artistry with expertise to breathe new life into your space, creating an environment that is not only beautiful but also perfectly tailored to your lifestyle. Experience & Specialized Services With over 10 years of experience, our dedicated team has successfully completed hundreds of projects, from minor upgrades to full-scale home transformations. We have a proven track record of delivering quality craftsmanship. We specialize in: Full-scale Home Renovations Modern Kitchen & Bathroom Remodeling Professional Basement Finishing Design & Material Consultation Why Choose Nora Arta? We understand that a home renovation is a big investment. We approach every project with meticulous attention, ensuring a stress-free and enjoyable experience for you. For builders and contractors, we serve as a reliable partner, dedicated to delivering high-quality craftsmanship on schedule and within budget. Service Area Our service area covers the entire Greater Toronto Area (GTA), including: Richmond Hill, Markham, Vaughan, Mississauga, Brampton, and Oakville. For a free consultation and to see our portfolio of past projects, contact us today. We look forward to partner

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  • Basement Waterproofing Specialist in Ajax, Durham
    • Best of Awards 2026
    • Best of Newly Listed 2025

    Welcome to Sehrii Builds Family Company! We are a family-owned construction business with over 20 years of experience, originally from Ukraine and proudly serving Toronto and the GTA. Our team delivers high-quality workmanship, expert advice, and attention to every detail, ensuring your project is done safely, efficiently, and beautifully. At Sehrii Builds, we understand that your home is an investment. That’s why we treat every project with care, striving to create results you’ll enjoy and be proud of for years to come. Our Services Include: Exterior: • Fences & Gates • Decks & Stairs • Gazebos • Landscape Design • Interlocking Stone Work & Stone Slabs • Porch Restoration & Repair • Retaining Walls • Windows & Doors Installation • Siding Interior: • Kitchen Renovations • Bathroom Renovations • Basement Renovations • Flooring • Painting & Drywall • Handyman Services ✅ Choose Sehrii Builds Family Company for trusted, professional construction services that transform your home and add lasting value. 📞 Contact us today to discuss your project!

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  • Basement Waterproofing Specialist in Ajax, Durham

    Mi equipo de trabajo está altamente capacitado para realizar los trabajos eso se puede demostrar con la Experiencia y los trabajos realizados Repointing Reparación de chimeneas Reparación de brick y block Alisado y protestos nuevos

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4.8

Top rated Basement Waterproofing Specialists

Our Basement Waterproofing Specialists in Ajax, Durham, are rated 4.8 out of 5 based on 37 reviews from homeowners like you.

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What basement waterproofing services are available in Ajax, Durham?

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 Ajax, Durham:

  • 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/Ajax, Durham), 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 Ajax, Durham?

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 Ajax, Durham:

  • 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 Ajax, Durham, 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 Ajax, Durham with HomeStars

Finding a basement waterproofing pro in Ajax, Durham 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 Ajax, Durham.
  3. Connect with basement waterproofing specialists in Ajax, Durham 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 Ajax, Durham

How long does basement waterproofing last in Ajax, Durham?

Most professional waterproofing solutions in Ajax, Durham 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 Ajax, Durham requires excavation?

Exterior waterproofing projects in Ajax, Durham 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/Ajax, Durham) 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 Ajax, Durham?

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 Ajax, Durham.

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