STRUCTURAL FOUNDATION SERVICES

Basement Underpinning

Extend your foundation downward to safely create high-ceiling living space in existing homes.

STRUCTURAL FOUNDATION SERVICES

Basement Underpinning

Extend your foundation downward to safely create high-ceiling living space in existing homes.

Toronto's housing stock is unusually demanding. We work daily on 140+ year-old heritage homes with rubble and brick foundations, tightly packed downtown townhouses, and semi-detached properties where a shared party wall dictates every move. Each of those structures needs a different underpinning sequence, and we plan yours before excavation begins.

Underpinning removes soil beneath your existing footings in small, engineered sections and replaces it with new reinforced concrete poured to a deeper elevation. Because only a limited length of wall is ever unsupported at once, the building above stays structurally safe, your neighbours stay protected, and the finished basement gains real, code-compliant ceiling height.

How We Help

  • Sequential pin-by-pin excavation for absolute foundation safety
  • Heritage home foundation restoration (140+ year-old brick & masonry)
  • Maximizes ceiling clearance without compromising neighboring structures
  • WSIB covered with fully engineered sign-offs
Ready to transform your lower level?
Book a free, no-obligation on-site structural inspection.

Our 4-Step Structural Process

1. Site Inspection & Engineering

We assess your foundation, soil, and load paths on site, then engage our structural engineer.

2. Permitting & Structural Drawings

Stamped drawings and City of Toronto permits are handled end to end before a shovel moves.

3. Sequential Excavation & Pour

Pin-by-pin excavation and reinforced concrete pours keep the structure fully supported throughout.

4. Final Inspection & Sign-Off

Engineer and municipal inspections, cleanup, and a written workmanship guarantee.

What Toronto Homeowners Say

“

Ken's crew lowered our 1890s Cabbagetown basement by three feet. Meticulous sequencing, permits handled, and our heritage brick came through untouched.

Michael D.
Homeowner, Cabbagetown
BUILT ON STRUCTURAL INTEGRITY

Reliable & Trusted Underpinning
Built Around Your Schedule

We protect the value of your property with full coverage, dedicated in-house crews, and guaranteed work.

WHY WORK WITH GTA UNDERPINNING:

  • Dedicated In-House Crews
  • Flexible Scheduling
  • Heritage Home Experts (140+ Yrs)
  • Fully Insured & Bonded
  • WSIB Good Standing
  • 200+ Jobs Completed
FEATURED PROJECTS

Recent Underpinning & Structural Work

PROVEN TRACK RECORD

Trusted Across the Greater Toronto Area

25
Years Experience
10
Team Members
200+
Jobs Completed
35+
Cities Serviced

Start With A Free Structural Consultation

Book a free, no-obligation on-site inspection today.

CALL 416-822-3106