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Find basement waterproofing pros in St Catharines

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 St Catharines. 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 St Catharines

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  • Basement Waterproofing Specialist in St Catharines

    Welcome to South Central Excavating. For years South Central Excavating has worked along side many homeowners and general contractors providing them with expert knowledge and service. We have been working alongside some of our clients for more than 20 years and have established great client contractor relationships. Clients know that they can rely on us to get the job done in a timely manner, and at a fair and competitive price. We are a company with a lot of enthusiasm because we love what we do and we bring our passion to every project. When you hire us you are gaining a partner who is there to help you complete your project. We service the western GTA all the way through the Niagara region.

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  • Basement Waterproofing Specialist in St Catharines

    At JSO Associates Inc., we bring precision, durability, and craftsmanship to every concrete project. With hands-on experience in residential, commercial, and industrial work, we understand that concrete is more than just placement — it’s about preparation, timing, and long-term performance. We focus on proper subgrade preparation, reinforcement, and curing methods to ensure your concrete stands the test of time. Whether it’s driveways, walkways, slabs, or structural work, we approach every job with attention to detail and a commitment to doing it right the first time. Our team values clear communication, honest pricing, and reliable scheduling. We show up ready, equipped, and focused on delivering clean, professional results. Safety, efficiency, and site cleanliness are always top priority. At JSO, we don’t just pour concrete — we build strong foundations for your home and business. When you choose us, you’re choosing quality workmanship, integrity, and a contractor who truly cares about the finished product. JSO Associates Inc. — Built Strong. Built Right.

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  • Basement Waterproofing Specialist in St Catharines
    • Best of Awards 2026

    At Complete Casa Construction, we are committed to building not just houses, but homes that stand the test of time. With years of experience and a dedicated team of skilled professionals, we specialize in high-quality construction, remodeling, and renovation services tailored to meet the unique needs of each client. Whether you’re building your dream home from the ground up, expanding your living space with a home addition, or updating your current space with a stylish renovation, we bring your vision to life with craftsmanship and care.

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  • Basement Waterproofing Specialist in St Catharines

    We offer concrete broomed finish concrete, stamped and decorative as well as concrete repairs and overlays with a wide array of colors and patterns. As well as interlock paving, walkways, garden walls , retaining walls and steps etc.

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  • Basement Waterproofing Specialist in St Catharines

    Born and raised in Sault Ste. Marie Ontario, recently moved to St, Catharines area. Hard working and love to work hands on.

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  • Basement Waterproofing Specialist in St Catharines

    I have 22 years of experience in residential insulation. No job is too small or too big — reliable, hard-working, and quality service you can count on. Message me today for a free quote or more information!

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  • Basement Waterproofing Specialist in St Catharines

    30 years of hands on work experience, with specialized training in construction. Certified appliance service technician of 15 years but no gas services. Customer service is top priority, working with customers to complete their jobs. Very affordable and reliable home services for those in need of Handyman.

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  • Basement Waterproofing Specialist in St Catharines

    Handyman and renovation services—at Clear View Niagara, we truly do it all. Proudly serving the Niagara Region and surrounding areas, we are your one-stop solution for reliable, high-quality work, whether it’s small repairs or full-scale renovations. From drywall, painting, flooring, and general handyman work to complete interior upgrades, our team delivers results that are clean, efficient, and built to last. We also provide specialized services such as professional cleaning, mold remediation, selective demolition, and water damage support when you need it most. No matter the size of the job, we approach every project with the same level of care, professionalism, and attention to detail. Our team is IICRC Certified, meaning we follow recognized industry standards to ensure safety, quality, and peace of mind for every client. At Clear View Niagara, we focus on honest work, clear communication, and results that exceed expectations—because your property deserves nothing less.

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  • Basement Waterproofing Specialist in St Catharines

    Well established and reliable tile installer. Have completed several tiled floors, bathrooms and backsplashes. Can complete simple work like caulking and replacing broken tiles, to full bathroom Reno. From demo to final coat of paint - I can compete your vision. Friendly and affordable service always

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  • Basement Waterproofing Specialist in St Catharines

    Specializing in rebuilding concrete pools in the Niagara Region📍We also offer openings and closings as well as weekly/bi-weekly maintenance.

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  • Basement Waterproofing Specialist in St Catharines

    Concrete

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  • Basement Waterproofing Specialist in St Catharines

    LKN Construction & Maintenance is your trusted partner for all outdoor needs, offering comprehensive services that include lawn care, hardscaping, concrete solutions, fencing, and snow clearing with ice control. What began as a small venture has blossomed into a thriving business, serving both homeowners and commercial properties with dedication and expertise. Our commitment to quality and customer satisfaction sets us apart, ensuring that every project—big or small—is completed with precision and care. Whether you’re looking to enhance your outdoor space or maintain it year-round, LKN Construction & Maintenance is your one-stop solution, delivering reliable service and exceptional results that truly elevate your property.

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  • Basement Waterproofing Specialist in St Catharines

    Welcome to Causa Construction Group! At Causa Construction Group, we are dedicated to transforming your vision into reality. Based in the beautiful Niagara region and proudly serving the Halton region as well, our team brings years of experience in the construction industry, specializing in residential and commercial projects. Our slogan, "Built with Reason," reflects our commitment to thoughtful design and quality craftsmanship in every endeavor. Whether it’s a home renovation, new build, or commercial space enhancement, we pride ourselves on delivering high-quality results and exceptional customer service. We understand that construction can be daunting, which is why we work closely with our clients every step of the way to ensure transparency, collaboration, and satisfaction. Explore our services, read our customer reviews, and see how Causa Construction Group can help bring your project to life. Let’s build something great together!

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  • Basement Waterproofing Specialist in St Catharines

    INDR CONSTRUCTION can help you with your house renovation, install or renovate bathroom, install or renovate kitchen, build sunroom, extension, build garage, build or renovate basement, build pergola, gazebo or garden house, build carport, install or replace beam, install or repair lift/elevator, build shed, general contractor service, structural work for construction, build shelter or outbuilding, carpentry framing, install, repair or replace caulking & accessibility modifications request in Niagara Falls and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with INDR CONSTRUCTION now to discuss your needs and arrange a quote.

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  • Basement Waterproofing Specialist in St Catharines

    At GED Concrete & Remodelling Inc., we turn houses into homes, and foundations into lifestyles. Whether you're upgrading your home, building an income-generating suite, or transforming your outdoor space, our team brings expert craftsmanship, reliable project management, and a passion for quality to every job. With a combined background of over 20 years in the construction and renovation industry, our team brings hands-on expertise across every phase of a project — from strategic planning and project management to the precise execution of work on-site. We’ve worked on everything from simple home upgrades to full-scale remodeling and outdoor transformations, and we bring the same level of care, precision, and professionalism to every job, no matter the size. At GED, we don't just build structures — we build trust, peace of mind, and lasting value.

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  • Basement Waterproofing Specialist in St Catharines

    Workmanship with a guarantee Fully insured with over 20 years experience We specialize all masonry and concrete services Brick block stone and anything masonry related Concrete work such as broom finish, exposed aggregate,stamped and foundations

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What basement waterproofing services are available in St Catharines?

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 St Catharines:

  • 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/St Catharines), 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 St Catharines?

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 St Catharines:

  • 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 St Catharines, 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 St Catharines with HomeStars

Finding a basement waterproofing pro in St Catharines 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 St Catharines.
  3. Connect with basement waterproofing specialists in St Catharines 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 St Catharines

How long does basement waterproofing last in St Catharines?

Most professional waterproofing solutions in St Catharines 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 St Catharines requires excavation?

Exterior waterproofing projects in St Catharines 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/St Catharines) 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 St Catharines?

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 St Catharines.

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