Underpinning
Foundation Lowering & Basement Underpinning in Toronto & the GTA
What Is Underpinning?
Basement underpinning is a structural process used to lower the existing basement floor while reinforcing the foundation. It is commonly performed to:
Increase usable basement ceiling height
Create livable basement space
Prepare for a legal secondary suite
Improve property value
Correct shallow or aging foundations
Underpinning is not cosmetic work — it is a structural engineering procedure that must be carefully designed and executed.
When Is Underpinning Required?
Homeowners typically require underpinning when:
Basement ceiling height is below livable standards
Converting a basement into legal living space
Adding secondary suites or rental units
Improving comfort and natural light
Renovating older Toronto homes with shallow foundations
Performing major structural renovations
If done improperly, underpinning can compromise the entire house.
Why Choose Us?
Betterview has extensive knowledge and over 10 years of experience in foundation lowering and basement underpinning in Toronto, Mississauga, Richmond Hill, Vaughan, Markham, Oakville, and across the GTA. Our team is well-versed in the regulations and requirements of municipalities across the GTA. Whether you need assistance with design, permit applications, or construction, our experts can guide you through every step of the process.
Our Underpinning Services
We provide full-scope underpinning solutions, including:
Structural feasibility assessment
Foundation condition evaluation
Engineering design & load path analysis
Permit drawings & city approval
Step-by-step excavation sequencing
Concrete pours & foundation reinforcement
Waterproofing & drainage upgrades
Final inspection coordination
Each project follows a controlled, phased underpinning method to ensure safety and stability at all times.
Underpinning for Legal Basements & Additions
Underpinning is often the first step toward:
Legal secondary suites
Basement apartments
Full basement renovations
Home additions requiring deeper foundations
We coordinate underpinning seamlessly with basement finishing, additions, and permit planning.