Bay Ridges and Liverpool's 1970s-90s subdivision bungalows sit on post-glacial Lake Iroquois shoreline soils that drive deeper bearing-depth requirements than typical inland GTA projects, and the City of Pickering operates its own building department under Durham Region with a fee structure and inspection cadence separate from Peel and Halton. Toronto Basement Underpinning delivers basement lowering, underpinning, interior waterproofing, basement finishing, sump pump installation, concrete foundation repair, legal apartment conversions, walkout basements, and permit coordination - full scope, one licensed crew.
A typical Pickering basement lowering runs $20,000-$50,000 depending on foundation depth, soil condition, and whether waterproofing and finishing are included in the same project. Every quote is fixed-price, includes engineered drawings and city permits, and is backed by our workmanship warranty.
Toronto Basement Underpinning serves basement lowering and underpinning across Pickering and the Greater Toronto Area, including Toronto, North York, Scarborough, Etobicoke, Mississauga, and Brampton.
Neighbourhoods Served
The homeowners who contact Toronto Basement Underpinning are usually wrestling with one of these. We solve them properly - not with a quick fix that fails in two years.
1980s subdivision detached homes in Bay Ridges, Liverpool, and Amberlea have 6'8"-7'0" original basements. Most are unfinished. Underpinning enables a legal lower level for extended family or rental.
Lake Iroquois shoreline area in Pickering has loose post-glacial soils, driving foundation settlement in 1980s subdivision builds. The pattern shows on the lake-side walls first.
High water table near Lake Ontario, especially in Bay Ridges and Rosebank. 1980s drainage tile on the local clay is approaching the end of its warranty life, and spring seepage is the norm.
City of Pickering plus Durham Region permits run a separate fee structure from Peel and Halton. Plan review typically 4-6 weeks. Our coordinator handles the Durham-specific paperwork.
Complete framing, rough-ins, drywall, flooring and trim to convert a raw basement into a legal apartment or luxury living suite. Available in Pickering as part of our full-turnkey underpinning service.
Full basement floor excavation and underpinning to gain 1-3 feet of ceiling height. Fixed-price contract includes engineer drawings, city permits, and concrete restoration. Available in Pickering as part of our full-turnkey underpinning service.
Exterior stairwell and door opening cut into your foundation wall, engineered to code, permitted, and waterproofed. Creates a private entrance for a legal basement suite or direct backyard access. Available in Pickering as part of our full-turnkey underpinning service.
Crack injection, footing repair, and structural reinforcement for Toronto homes, with an honest call on when full underpinning is the right answer instead. Available in Pickering as part of our full-turnkey underpinning service.
End-to-end drawings plus permit coordination, architect, structural engineer, City of Toronto submission, and Committee of Adjustment if zoning relief is needed. Available in Pickering as part of our full-turnkey underpinning service.
Full interior waterproofing of foundation walls, weeping tile, sump pit, and dimpled membrane, to stop leaks at the source. Available in Pickering as part of our full-turnkey underpinning service.
Underground plumbing, main drain replacement, and rough-ins for new bathrooms, most efficient when combined with underpinning or basement finishing. Available in Pickering as part of our full-turnkey underpinning service.
Primary plus battery backup sump pump systems sized for Toronto's freeze-thaw water table, eligible for the City of Toronto Basement Flooding Subsidy. Available in Pickering as part of our full-turnkey underpinning service.
Pickering underpinning runs through the City of Pickering building department plus Durham Region permits, with a separate fee structure from Peel and Halton. Lake Iroquois shoreline soils in Bay Ridges and Liverpool have a loose post-glacial profile, so our engineering specs include deeper bearing depths than typical inland projects.
Engineered assessment at your Pickering property. Fixed-price quote within two business hours.
Architect, structural engineer, Pickering building permit submission. We handle every form and every hearing.
Pin-section excavation and pours in Pickering. Daily site cleanup. Engineered inspections at every milestone.
City sign-off, engineer's stamp, warranty documentation, finishing handoff if bundled in Pickering.
Free engineered assessment. Workmanship warranty on every project.
Pickering property owners bundle multiple basement scopes on one fixed-price contract. All 8 services below price at published Durham Region rates.
Basement underpinning (also called basement lowering or foundation underpinning) is full basement floor excavation with pin-by-pin concrete underpinning to gain 1-3 feet of ceiling height. Fixed-price contract includes architect drawings, structural engineer stamp, and building permit coordination.
From $20,000
Complete basement finishing after underpinning or waterproofing is done: framing, insulation, drywall, flooring, kitchen and bath rough-ins, trim, and paint. Full turnkey suite build ready for occupancy inspection.
From $35,000
Interior weeping tile replacement along the foundation perimeter, new sump pit and battery-backup sump pump, Delta-MS drainage membrane on interior walls, and hydrophobic polyurethane crack injection where required.
From $6,000
Hydrophobic polyurethane crack injection for active water leaks, epoxy structural crack repair, carbon fibre stitching for shifting walls, and full wall stabilisation systems for bowed or leaning foundation walls.
From $400
Complete architect site plan drawings, structural engineer stamped footing and beam details, and municipal building permit application coordination for basement underpinning, finishing, and second-suite conversion projects.
From $2,500
Sump pit excavation, primary submersible sump pump installation, battery-backup secondary pump for power outages, and city-approved backwater valve installation for basement flood prevention.
From $800
Basement rough-in plumbing for kitchen and bath in second-suite conversions, drain camera inspection for existing sanitary lines, backflow prevention valve installation, and municipal service connection coordination.
From $1,500
Basement walkout entrance construction: exterior excavation, engineered retaining walls, waterproof stair landing, insulated exterior door frame, drainage tie-in, and weather-sealed threshold for legal second-suite egress.
From $12,000
“Bay Ridges Pickering 1970s bungalow, close enough to the lake that the water table was always going to be a problem. TBU paired underpinning with weeping tile and a battery-backup sump. Dry through two springs already.”
Trevor S.
Bay Ridges, Pickering
“Liverpool Pickering 1990s detached, classic suburban subdivision. Underpinned to 8'2" plus a finished basement for our extended family. The City of Pickering permit timeline was fast, under five weeks.”
Anjali R.
Liverpool, Pickering
“Amberlea Pickering 1985-build, original concrete-block foundation. The basement was usable but short. Underpinning plus interior waterproofing as one project. The Durham Region inspector signed off the first time.”
Patricia O.
Amberlea, Pickering
Free estimate within two business hours. Local crews, next-day estimate.
