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Find basement waterproofing pros in Ajax

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. 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

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  • Basement Waterproofing Specialist in Ajax

    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

    We are a full-service contracting company specializing in drywall, painting, concrete work, fencing, and general residential construction. Our goal is simple: deliver clean, high-quality work with a smooth, stress-free experience for every client. From small repairs to full projects, we handle everything from start to finish. Whether you need drywall installation and finishing, interior or exterior painting, concrete work such as driveways and walkways, or custom fence installation, we bring attention to detail, reliability, and strong workmanship to every job. As a general contractor, we also take care of coordinating projects that involve multiple trades, so you don’t have to deal with multiple contractors. We keep communication clear, timelines on track, and make sure the job is done right the first time. We pride ourselves on being dependable, easy to work with, and focused on results that last. No shortcuts — just solid work and satisfied clients.

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  • Basement Waterproofing Specialist in Ajax
    • Best of the Best 2025
    • Best of Awards 2026
    • Best of Newly Listed 2023

    Need a basement walkout, underpinning or a house addition for your property? Or may be a new patio , walkway or stairs ? How about new concrete slabs ( garage , basement ) or a pad for a shed ? Concrete Master is the premier commercial & residential concrete contractor in Toronto. What Can We Help You With? Concrete Master is here to help. Our team has the tools and experience to make we complete your project on time. We are your one-stop shop for concrete services. Why Choose Concrete Master? Are you looking for an affordable concrete company that you can trust? Concrete Master is a licensed and insured company, offering high-quality products and premium workmanship at affordable prices! We bring your vision to life! Give us a call

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  • 🏗️ Welcome to Unity Mechanical Group— Your All-in-One Construction & Trades Group, we bring your vision to life with precision, reliability, and craftsmanship. As a full-service General Contracting company, we specialize in delivering seamless construction solutions—from ground-up builds to renovations and everything in between. But we don’t stop there. 💡 Electrical ❄️ HVAC 🚿 Plumbing We’re proud to offer expert-level services in HVAC, Electrical, and Plumbing, making us your one-stop shop for residential, commercial, and industrial projects. Whether it’s installing high-efficiency heating and cooling systems, wiring a new facility, or ensuring flawless plumbing infrastructure, our certified technicians and skilled tradespeople handle it all with unmatched professionalism. 🔧 Why Choose Us? • Licensed & insured professionals • Transparent pricing & timelines • Quality workmanship backed by warranties • Personalized service tailored to your project needs From blueprint to final inspection, we’re committed to excellence, safety, and customer satisfaction. Let us take the stress out of your next project—because when you work with Unity, you’re not just hiring a contractor, you’re partnering with a team that cares!

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  • Basement Waterproofing Specialist in Ajax

    Concrete demolition and restoration specialist serving Ontario and surrounding areas, including the Greater Toronto Area. Sylvain Gutierrez and Pedro Cervantes, LIUNA Local 183 union members, with Working at Heights certification. We take on small and medium residential and light commercial jobs — demolition and removal, crack repair, basement crack repair, spalling repair, parging, and resurfacing — with clean, reliable workmanship and free estimates.

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  • Basement Waterproofing Specialist in Ajax

    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

    We carry out all concrete-related work, including foundation, footing, concrete slab, and concrete stairs.

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  • Basement Waterproofing Specialist in Ajax

    Sibel Construction Corp specializes in concrete, interlocking pavers, landscaping, stone and brick work, retaining walls, outdoor stairs, and exterior construction. We take pride in delivering durable, high-quality results with attention to detail and exceptional customer service. Whether it’s a driveway, walkway, patio, or custom outdoor project, fence, deck our team is committed to excellence from start to finish.

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  • Basement Waterproofing Specialist in Ajax

    Level One Drywall Finishing is a professional drywall finishing company providing high-quality taping, mudding, sanding, and surface preparation services for residential and commercial construction projects. The business is focused on quality craftsmanship, dependable scheduling, and professional service

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  • Basement Waterproofing Specialist in Ajax
    • 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

    My name is Mitchell, and I am the owner of HG contracting and I’m excited to offer exclusive, competitive pricing for all renovation and remodelling needs — big or small. From modern updates to full renovations, my team and I are committed to delivering top-quality craftsmanship and personalized service you can trust. Let’s build something beautiful, from concept to completion! HG Contracting 📍 Based in Toronto & the GTA | ✅ Our Services Include: Home renovations & additions Kitchen & bathroom remodels Decks, fences & outdoor spaces Flooring, drywall, painting, trim work Commercial buildouts & maintenance Custom projects tailored to your needs 🔨 Quality workmanship – done right the first time 📅 Flexible scheduling and quick turnaround times

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  • Basement Waterproofing Specialist in Ajax
    • Best of the Best 2025
    • Best of Awards 2026
    • Giving Back Award 2015

    Award Winning Exterior Restoration Specialists! A&A Masonry is a Toronto-based, award-winning company specializing in a comprehensive range of exterior services. Our expertise spans across stonework, interlocking pavers, natural stone, stone veneer cladding, tuckpointing, masonry, brick repair and restoration, brick cleaning, roof repair & installation, metal work, waterproofing, foundation repairs, concrete installations, epoxy flooring and more. We cater to residential, commercial and industrial clients throughout the Greater Toronto Area. Our team of skilled artisans is committed to delivering top-quality workmanship on every project. We pride ourselves on completing jobs safely, on time, and within budget. A&A Masonry stands out by consistently delivering on our promises, offering unique and reliable exterior solutions tailored to each client's needs. Customer satisfaction is our top priority, and we achieve this through exceptional attention to detail and personalized service. We never compromise on quality, safety, or efficiency, ensuring that each project, regardless of size or scope, is handled with care and expertise. We proudly serve the Greater Toronto Area, including Toronto, Etobicoke, Mississauga, Thornhill, Richmond Hill, York, North York, East York, Mimico, Hamilton, Brampton, Bolton, and surrounding regions. As specialists in exterior restorations our services include: Stonework and interlocking pavers Natural stone and stone veneer cladding Tuckpointing and brick repair Brick cleaning Chimney repair, rebuild, and restoration Roof installation and repairs Metal work Concrete steps, porches, patios, walkways and driveways Flagstone and cultured stone installation Waterproofing and foundation repair Caulking services for windows and doors Trust A&A Masonry for all your exterior needs, where excellence and customer satisfaction are always our top priorities.

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  • Basement Waterproofing Specialist in Ajax

    My name is Timothy Lekas, and I’ve been working in the construction industry for nearly a decade. Over the years, I’ve gained hands-on experience in a wide range of projects—from concrete pads, fences, and decks to full renovations, new builds, and custom homes. I take pride in delivering quality work that lasts, whether it’s flooring, furniture building and installation, or essential details like vapour barriers and insulation. My focus is on creating reliable results and making every project as seamless as possible for my clients.

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  • Basement Waterproofing Specialist in Ajax

    Reliable, dedicated hardworking individual who puts customers and quality first.

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  • Basement Waterproofing Specialist in Ajax

    We specialize in professional concrete repair, resurfacing, epoxy flooring, concrete polishing, and custom Jewel Stone finishes. From porches, steps, walkways, and foundation walls to beautifully finished epoxy and polished concrete surfaces, we deliver high-quality workmanship tailored to your needs. We take pride in providing clean, durable, and long-lasting results, with attention to detail and customer satisfaction at the forefront of every project. All of our work is backed by a 3-year warranty, giving you confidence and peace of mind.

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  • Basement Waterproofing Specialist in Ajax

    Professional contractor has been working indoor and outdoor projects, such as full renovation, house extension, fence, deck and interlocking.

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4.9

Top rated Basement Waterproofing Specialists

Our Basement Waterproofing Specialists in Ajax, are rated 4.9 out of 5 based on 35 reviews from homeowners like you.

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What basement waterproofing services are available in Ajax?

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:

  • 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, 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?

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:

  • 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, 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 with HomeStars

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

How long does basement waterproofing last in Ajax?

Most professional waterproofing solutions in Ajax 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 requires excavation?

Exterior waterproofing projects in Ajax 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 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?

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.

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