
Interior Basement Waterproofing in Toronto
Keep Water Out. Protect What Matters.
Is your basement showing signs of moisture, musty odours, or foundation leaks? At UPR, we offer effective and affordable interior waterproofing solutions for homes across Toronto and the GTA. Whether you’re seeing early signs of trouble or need emergency protection, our system keeps your basement dry — from the inside out.
Why Interior Waterproofing?
Interior waterproofing is a non-invasive method that manages water after it enters the foundation wall — directing it safely to a sump pump and out of your home. It’s ideal for:
Leaking foundation walls
Wet basement floors
Cracks letting in water
Musty smells or visible mold
Homes where exterior waterproofing isn’t possible
It’s a smart, cost-effective option — especially in finished or semi-finished basements.
What’s Included in Interior Waterproofing
We customize every system to fit your basement and water problem:
Trench along interior perimeter
We carefully open the floor along walls to install a drainage system.Weeping tile (drain pipe) installation
Redirects water to your sump pump system for safe discharge.Wall membrane application
A vapor barrier channels moisture from foundation walls into the drainage system.Sump pump & battery backup (if needed)
Automatically removes water — even during power outages.Crack sealing & mold remediation
Repair visible wall cracks and remove mold-affected materials when necessary.
Benefits of UPR Interior Waterproofing
Dry, usable basement year-round
No digging or damage to landscaping
Works well in tight spaces or shared walls
Compatible with finished basements
Fast, clean installation with long-term protection
Serving Toronto & Surrounding Areas
We’ve waterproofed basements across Etobicoke, North York, Scarborough, Mississauga, and beyond. With 20+ years of experience, we understand Toronto’s soil, older foundations, and drainage patterns.
Protect Your Basement from the Inside Out
Don’t let a small leak turn into a flooded basement. Call UPR today and we’ll design the right interior waterproofing system for your home.