Underpinning & Basement Lowering in Mississauga
More headroom and a stronger foundation, ready for a basement apartment, an in-law suite or a proper family room.
Turn a Low Basement Into Real Living Space
Plenty of Mississauga basements sit around six and a half feet, which is too low to finish comfortably and too low for a legal secondary unit. Underpinning fixes that. We dig beneath the existing footings one section at a time, form and pour new, deeper footings with rebar, then lower the floor and pour a new slab.
The house is supported the whole time, and you end up with a full-height basement on a stronger foundation.
- Sectioned underpinning with reinforced footings
- Basement lowering with new slab and drains
- Waterproofing and weeping tile done in the same job
- Built for basement apartments and finished basements
Recent Work
Photos from real jobs our crew has done.
Questions
Is underpinning safe?
Yes. We work in short alternating sections and pour each new footing before moving on, so the house is always supported.
Underpinning or bench footing?
Underpinning keeps your full floor area. A bench footing costs less but leaves a ledge around the room. We'll go over both on site.
Will I need a permit?
Underpinning generally needs a building permit and engineered drawings in Mississauga. We'll walk you through what your job needs.
Can you waterproof at the same time?
Yes, and you should. With the floor open, it's the best time to add a membrane, weeping tile and a sump.
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.