Toronto’s Dedicated Basement Lowering & Underpinning Specialists
25+ years of hands-on structural experience beneath the city’s most demanding homes.
Our Story
GTA Underpinning was built on one specialty: safely taking Toronto basements deeper. Over 25+ years and 200+ completed projects, our crews have worked beneath 140+ year-old heritage homes with rubble and brick foundations, tightly attached downtown townhouses, semi-detached properties sharing a party wall, and detached houses across every corner of the GTA.
Each of those structures behaves differently once soil is removed from under a footing. That is why we plan the sequencing with a structural engineer before excavation begins, handle the permits and stamped drawings ourselves, and keep the same in-house team on your property from the first pin to the final inspection.
Our Core Principles
Dedicated In-House Crews
Specialized underpinning teams assigned to your project from start to finish — no amateur hand-offs, no rotating general labour, no subcontracted guesswork.
Full Protection
Fully insured, bonded, and in good standing with WSIB, so your home, your neighbours, and every worker on site are completely covered.
Satisfaction Guarantee
Quality workmanship tailored to complex residential structural needs, backed by engineered sign-offs and a written guarantee on every pour.
Let’s talk about your lower level
Free, no-obligation on-site structural inspection across Toronto and the GTA.
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
Trusted Across the Greater Toronto Area
Start With A Free Structural Consultation
Book a free, no-obligation on-site inspection today.