Proseal Waterproofing & Contracting Inc.

Interior and Exterior Waterproofing

Looking for trusted waterproofing in St. Catharines?

Proseal Waterproofing provides expert basement waterproofing services to protect your home from leaks, cracks, and water damage. Serving St. Catharines and the surrounding area, we specialize in reliable, long-term solutions that keep your basement dry.

Professional Waterproofing in St. Catharines You Can Rely On

At Proseal Waterproofing, we understand how disruptive a leaky or damp basement can be. Whether you're dealing with foundation cracks, musty odors, or visible water damage, our St. Catharines waterproofing team is here to help. We use industry-leading techniques and materials to ensure your home stays protected against moisture, mold, and costly repairs.

Our St. CatharineS Waterproofing Services

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We offer a full range of residential basement waterproofing services in St. Catharines, including:


  • Exterior Waterproofing: Protect your foundation by stopping water before it enters.
  • Interior Waterproofing: Effective solutions for managing water that's already inside.
  • Crack Injection & Foundation Repair: Seal foundation cracks to prevent leaks and structural damage.
  • Weeping Tile & Drainage Systems: Improve water flow and prevent basement flooding.
  • Sump Pump Installation & Maintenance: Keep your basement dry with reliable sump pump systems.
  • Crawl Space Encapsulation: Protect your crawl space from moisture, mold, and mildew.
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Why Choose Proseal for Waterproofing in St. Catharines?

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Local Experts

– Proudly serving homeowners in St. Catharines and the Niagara region.

Over 25 Years of Experience

– Trusted waterproofing contractors with a proven track record.

Transferable Warranties

– We stand behind our work.

Free, No-Obligation Estimates

– Get expert advice with no pressure.

Competitive Pricing

– Quality waterproofing that fits your budget.

Common Basement Issues We Fix in St. Catharines

Hamilton homes, especially older properties, are prone to water issues due to aging foundations, heavy rainfalls, and poor drainage. We commonly help Hamilton homeowners with:

Wet or damp basements after rain

White powdery substances (efflorescence) on basement walls

St. Catharines homes, especially older properties, are prone to water issues due to aging foundations, heavy rainfalls, and poor drainage. We commonly help St. Catharines homeowners with:

Water seepage through floor cracks

Mold or mildew buildup


Musty smells in the basement


Bowing or cracked foundation walls


Serving All of St. Catharines and Surrounding Communities

If you notice any of these signs, it’s time to call Proseal Waterproofing—the St. Catharines waterproofing experts.

We proudly serve all areas of St. Catharines. Whether you live in a century-old home downtown or a newer build on the mountain, our team is equipped to handle your waterproofing needs.


Get a Free Quote for Waterproofing in St. Catharines

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Don't wait for water damage to get worse. Protect your home and investment with professional basement waterproofing from Proseal.


📞 Call us today or 📩 request a free quote online for reliable waterproofing in St. Catharines.

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