Basement Underpinning Services in the Greater Toronto Area | Domi Construction
Unlock the full potential of your home with professional basement underpinning by Domi Construction. Whether you need more living space, increased ceiling height, or a solid foundation for future renovations, we provide safe, code-compliant, and expertly managed underpinning services across the Greater Toronto Area (GTA), including Toronto, Mississauga, Brampton, Hamilton, Oakville, and Etobicoke.
What Is Basement Underpinning?
Basement underpinning is the process of lowering your basement floor and strengthening your foundation to create more usable space and increase structural integrity. It’s ideal for homeowners looking to transform cramped or unfinished basements into fully functional living areas such as bedrooms, rental suites, family rooms, or home offices.
Benefits of basement underpinning:
Increase ceiling height for better comfort and code compliance
Boost property value with added livable square footage
Reinforce and stabilize existing foundations
Create income-generating rental units
Prepare your home for future renovations or additions
With Domi Construction, you’re not just expanding your home — you’re building long-term value.
Why Choose Domi Construction for Basement Underpinning in the GTA?
✔ Licensed, Insured, and Experienced
We are fully licensed and insured, with extensive experience handling complex structural work in accordance with Ontario Building Code. Your safety and property value are our top priorities.
✔ Engineered for Strength & Durability
We work with structural engineers and city inspectors to design the most effective underpinning solutions for your property — ensuring strength, longevity, and legal compliance.
✔ Full Excavation & Waterproofing Services
In addition to underpinning, we handle interior excavation, drainage system upgrades, sump pump installations, and foundation waterproofing to ensure your new basement is dry and durable.
✔ Clean, Efficient, & Respectful Crews
We treat your home like our own — minimizing disruption, protecting above-ground areas, and keeping the job site clean and safe at every step of the process.
Basement Underpinning for Homes Across the GTA
We provide expert underpinning solutions in:
Toronto
Mississauga
Brampton
Hamilton
Oakville
Etobicoke
Each municipality has different permitting requirements, and we’re familiar with the specific building codes and bylaws in all these regions.
Signs You May Need Basement Underpinning
Low ceiling height makes the basement unusable
Foundation walls are cracking or shifting
You want to convert your basement into a legal rental unit
Water or moisture issues suggest an aging or weak foundation
You’re planning a major home renovation or addition
We begin each project with a full structural assessment and consultation to recommend the safest and most cost-effective path forward.
More Than Underpinning: Full-Service Construction from Start to Finish
Domi Construction is more than just a basement contractor — we offer start-to-finish solutions for all your renovation and structural needs, including:
Demolition
Additions
Kitchen Renovations
Deck Building
Painting
Structure Framing
Metal Studs Framing
Drywall Installation & Taping
That means you can trust us to not only underpin your basement but also renovate and finish it into a fully livable, beautiful space.
Book Your Free Basement Underpinning Consultation Today
Ready to expand your home from the ground down? Contact Domi Construction today to schedule your free consultation and quote. We’ll assess your basement, explain your options, and walk you through each step of the process.