Dry basements. Deeper basements. Built right in Mississauga.
Underpinning, basement lowering and full basement waterproofing for homes across Cooksville, Mineola, Port Credit, Applewood and the rest of Mississauga.
Our Services
From a single leaking crack to a full lowered basement, it's all handled by one crew, with one quote and one point of contact.
Underpinning & Basement Lowering
New, deeper footings and a full-height basement, built for basement apartments and family rooms.
Learn more →
Basement Waterproofing
Exterior excavation or interior drainage, whichever your property actually needs.
Learn more →
Foundation Crack Repair
Leaking cracks sealed for good, with no guesswork.
Learn more →
Weeping Tile Replacement
Old clay tile out, new perforated pipe and clear stone in.
Learn more →
Sump Pumps & Window Wells
New sump pits and pumps, plus window wells that keep water out.
Learn more →
Interior Waterproofing
Perimeter drain, membrane and sump, done from inside when you can't dig outside.
Learn more →
Why Mississauga Basements Leak
Many Mississauga homes were built from the 1950s through the 1980s. After decades in the ground, the original clay weeping tile collapses or fills with roots, the tar coating on the foundation wears away, and water starts finding the cracks.
- We dig down to the footing and show you exactly what failed
- New membrane, new weeping tile and clear stone, done properly
- Interior systems for side yards, decks and tight lots
- Underpinning in sections, so your home stays supported
From Inspection to Dry Basement
Simple, clear and on schedule.
Book
Tell us what's going on: a leak, a crack, or a basement you want lowered.
Inspect
We come out for free and find exactly where the water is getting in.
Quote
You get a written price, scope and timeline before any work starts.
Fix
Our crew does the job, backfills and cleans up the site.
Project Gallery
Excavations, membranes, weeping tile and underpinning from our crews.
Mississauga Neighbourhoods We Serve
Based in Cooksville and working right across the city.
Questions We Get a Lot
Is the inspection really free?
Yes. We come out, take a look and give you a written quote. There's no charge and no obligation.
Do I need exterior or interior waterproofing?
Exterior is the most complete fix when there's room to dig. Interior works when there's a deck, a driveway or a neighbour's wall in the way. We'll recommend what fits your property.
Can you lower my basement for a rental unit?
Yes. Underpinning and basement lowering are how most older Mississauga homes get the ceiling height a basement apartment needs.
Do you replace window wells?
Yes. We install new galvanized window wells with clear stone drainage as part of waterproofing jobs or on their own.
Where do you work?
All of Mississauga, including Cooksville, Mineola, Port Credit, Lakeview, Applewood, Erindale, Clarkson and Lorne Park.
Visit or Book an Inspection
We're at Hurontario & Dundas in Cooksville, central to every Mississauga neighbourhood.
MSA Underpinning & Basement Waterproofing Mississauga
3025 Hurontario St, Ste 306
Mississauga, ON L5A 2H1
Free on-site inspections and written quotes.
Wet basement? Want a basement apartment?
Book a free on-site inspection anywhere in Mississauga. You'll get a straight answer and a written quote, with no pressure.