Proseal Waterproofing & Contracting Inc.

Interior and Exterior Waterproofing

Searching for quality waterproofing in St. Catharines?

In St. Catharines, Proseal Waterproofing provides dedicated basement waterproofing services that protect against leaks, cracks, and water-related damage. Our innovative, long-lasting systems safeguard your home and deliver peace of mind for years to come.

St. Catharines’ Expert Waterproofing – Delivering Lasting Protection

A wet basement can trigger a host of problems—from deteriorating foundations to mold growth. Our St. Catharines experts address issues like foundation splitting and persistent dampness with industry-leading methods and quality materials, ensuring your home remains dry and structurally sound.

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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