
Last Updated : April 07, 2026
In Toronto, basement underpinning typically costs between $80 to $500 per linear foot. For a standard project, this translates to a total expense ranging from $20,000 to $50,000. For precise costing tailored to your specific project, it’s best to consult directly with a professional underpinning service.
At VMB Group Underpinnings, we’ve been providing expert underpinning services for over 20 years and offer the best prices in the industry. Contact us today for a free estimate!
At VMB Group, we pride ourselves on being experts in underpinning for over a decade. We have prepared this article to help you understand the average costs of underpinning projects in Toronto and the GTA, along with all the related expenses. Whether you’re planning a small project or a large-scale renovation, our insights will guide you through the financial aspects of your underpinning journey.
The City of Toronto’s Basement Flooding Protection Subsidy Program reimburses homeowners up to 80% of the cost of eligible flood protection work — including sump pumps, backwater valves, and more.
That means the upgrade that protects your home and increases its value could cost you a fraction of the price.
VMB Group is fully licensed with the City of Toronto and can complete all subsidy-eligible installations — we’ll even help you navigate the application process from start to finish.

| Services Related to Underpinning | Cost Range |
| Converting Crawlspace into Basement | $30,000 – $100,000 |
| Crawlspace Excavation | $15,000 – $35,000 |
| Plumbing & Weeping Tile Installation | $3,000 – $8,000 |
| Foundation Pouring | $25,000 – $45,000 |
| Finishing | $10,000 – $30,000 |
| Structural Engineering | $1,500 – $7,000 |
Basement underpinning is a crucial process that strengthens and stabilizes the foundation of your home. It often involves several key services, each with its own costs and requirements. Here is a detailed summary of these services and their average prices in Toronto and Ontario:
$2,000 – $3,000 per permit.
The Cost of Building Permits for Underpinning in Toronto ranges $2,000 – $3,000. Before you begin underpinning your foundation, a building permit is typically required. This permit ensures that your project meets local building codes and regulations. The cost of the permit generally includes necessary third-party inspections that occur during each stage of the foundation underpinning process.

$100 – $200 per hour
The Cost of Hiring a Structural Engineer for Underpinning in Toronto ranges $100 – $200 per hour. Hiring a structural engineer is crucial for underpinning. They play an essential role in identifying potential problems and ensuring the foundation is strong enough to support your home. Whether you’re repairing a failing foundation or renovating, a structural engineer’s expertise ensures that all structural aspects are addressed.

$100 – $200 per hour
The Cost of Hiring a Contractor for Underpinning in Toronto ranges $100 – $200 per hour, typically 10% – 20% of the total project cost. Local foundation repair contractors manage the underpinning process, which includes planning, excavation, and construction. The total cost of hiring a contractor is typically a percentage of the total project cost. Contractors will provide detailed quotes based on the size and complexity of your underpinning project.

$75 – $200 per hour
The Cost Of Excavation For Underpinning In Toronto Ranges $75 – $200 Per Hour. Excavation is an essential part of the underpinning process, involving the removal of soil and debris to create space for the basement underpinning work. This process includes labor costs and fees for heavy equipment operators, who charge around $22 per hour.

$3 – $20 per hour
The Cost Of Concrete Slab Underpinning In Toronto Ranges $3 – $20 Per Square Foot. Concrete slab underpinning, also known as slab jacking, is a method where grout is injected under a sunken concrete slab to lift it back to its original level. This technique is less disruptive and more environmentally friendly compared to other methods.

$15 – $30 per hour
The Cost Of Screw Pile Underpinning In Toronto Ranges $15 – $30 Per Foot. Screw pile underpinning, or pier underpinning, involves driving helical piers deep into the ground to stabilize the foundation. The cost varies depending on the number of piers needed. Helical piers are typically 20 feet long and provide robust support to the foundation.

$75 – $230 per hour
The Cost Of Grout Injection For Underpinning In Toronto Ranges $75 – $230 For Materials. Grout injection, also known as resin injection, is a modern method used to stabilize foundations. It involves injecting a grout mixture into the ground to fill voids and strengthen the soil. While DIY is possible, it requires proper equipment and expertise to ensure effectiveness.

$20,000 – $50,000 per project
The Cost of Basement Lowering in Toronto ranges $20,000 – $50,000. Lowering the basement floor increases ceiling height, making the space more usable. This involves extensive excavation and underpinning work to lower the existing floor, a complex and labor-intensive process.

$75 – $150 per liner foot
The Cost of Bench Footings for Underpinning in Toronto ranges $75 – $150 per linear foot. Bench footings are used when full underpinning isn’t necessary. This method involves creating a ledge or “bench” around the foundation walls, adding support without extensive excavation.

$50,000 – $100,000 per project
The Cost Of Crawl Space Excavation In Toronto Ranges $50,000 – $100,000. Converting a crawl space into a full basement involves significant excavation and underpinning work. This process increases the usable space in your home but requires careful planning and execution.

$10,000 – $30,000 per project
The Cost of Basement Walkouts in Toronto ranges $10,000 – $30,000. Converting a crawl space into a full basement involves significant excavation and underpinning work. This process increases the usable space in your home but requires careful planning and execution.

$100 – $200 per square foot
The Cost of House Addition in Toronto ranges $100 – $200 per square foot. Adding a new section to your house through basement underpinning involves extending the foundation and supporting the new structure. This method allows for additional living space without compromising the existing foundation’s integrity.

$5000 – $10,000 per project
The Cost Of Load-Bearing Wall Removal In Toronto Ranges $5,000 – $10,000. Removing a load-bearing wall requires installing a support beam to maintain the structural integrity of your home. This process involves careful planning and execution to ensure the home’s safety.

$3,000 – $10,000 per project
The Cost of Waterproofing in Toronto ranges $3,000 – $10,000. Waterproofing your basement prevents leaks and moisture buildup, protecting your foundation and interior spaces. Methods include applying waterproof coatings, installing drainage systems, and ensuring proper grading around your home.

$100 – $300 per hour
Installing or upgrading basement plumbing systems includes sump pumps, drainage systems, and other plumbing needs. Proper installation ensures efficient water management and prevents flooding.

$3 – $12 per square foot
The Cost of Concrete Polishing in Toronto ranges $3 – $12 per square foot. Polishing a concrete floor involves grinding and sealing the surface to create a smooth, shiny finish. This process enhances the basement’s appearance and makes the floor easier to maintain.

$5,00 – $2,000 per window
The Cost of Window Well Installation in Toronto ranges $500 – $2,000 each. Installing window wells around basement windows improves natural light and ventilation. This process includes excavation, installing the well, and ensuring proper drainage.

$5,00 – $10,000 per project
The Cost Of Foundation Repair In Toronto Ranges $500 – $10,000. Foundation repair involves fixing cracks, settling, or other issues that compromise the foundation’s stability. Methods include injecting epoxy or polyurethane foam, adding piers, and reinforcing the structure. Understanding these services and their costs helps in planning and budgeting your basement underpinning project effectively. Consult with local professionals for accurate quotes tailored to your specific needs.

We are committed to providing high-quality underpinning services at competitive prices. Call us and ask for the best quote in the city. Our dedicated team is here to assist you with all your basement lowering and underpinning needs, ensuring both the safety and value of your home.
Scheduling the project during off-peak seasons may also yield discounts. Additionally, combining underpinning with other foundation repairs can qualify you for package deals or bulk discounts.
Typically, homeowner's insurance in Toronto does not cover underpinning unless the damage results from a covered peril, such as an earthquake or flood. Standard wear and tear are usually not covered. Contact your insurance provider in Toronto to understand your specific policy details.
The cost of underpinning in Toronto is influenced by the foundation size and depth, the underpinning method, and local soil conditions. Site accessibility and additional repairs also impact the cost. Consulting a structural engineer in Toronto will provide a precise cost estimate based on these factors.
| Stage | Services Included | Average Cost |
| Initial Consultation & Inspection | – Assessment by structural engineers – Identifying specific needs and potential challenges of the property | Included in total project cost |
| Planning & Permits | – Creation of detailed plans and drawings – Assistance in obtaining necessary permits | $2,500 – $4,500* *Cost may be included in the total project quote by some companies |
| Excavation | – Controlled excavation beneath the existing foundation | Typically costs $70 to $200 per hour |
| Underpinning | – Constructing new foundation segments beneath the existing ones | Concrete slab underpinning – $3 to $20 per square foot Screw Pile Underpinning – $15 to $30 per foot |
| Optional Enhancements | – Waterproofing to prevent water ingress – Finishing works for cosmetic and structural restoration | Foundation repair – $1500-$3000 Basement Waterproofing – internal from $50 to $100 per linear foot, external waterproofing $150 to $250 per linear foot Basement Finishing – Starting at $55 per sq/ft |
| Inspection and Certification | – Final inspection by a certified inspector to ensure compliance and safety – Certification of work | Included in total project |
Basement underpinning and lowering in Toronto can be a significant investment in your property. However, there are several strategies to help manage costs and achieve savings without compromising on quality or safety:

Underpinning can boost your home’s value by expanding usable space, especially if you turn your basement into an extra unit. Here’s why it might be worth it:
1. No Impact on Zoning Limits
Toronto’s zoning laws set a maximum gross floor area (GFA) for homes, but basements aren’t included in this calculation. Underpinning adds space without affecting your zoning status.
2. Affordable Alternative
Underpinning typically costs up to $50,000, which is more economical than constructing an addition. This approach provides more usable space for the same amount of money, making it a cost-effective solution compared to the high expense of new square footage.
3. Fixes Water Problems
Underpinning can also address basement water issues by adding parging, damp proofing, and vapor barriers, providing a long-term solution for a dry basement.
Overall, underpinning is a cost-effective way to increase your home’s value and solve water problems.

Taking on the task of underpinning a foundation yourself is not only a significant commitment but also one that might not result in substantial savings. The costs can escalate quickly due to the necessity of specific technical equipment and high-quality materials, regardless of labor expenses.
Underpinning is a complex procedure that demands a high level of expertise to ensure the structural integrity of the building. Therefore, it is crucial that this work is carried out by someone with extensive experience and knowledge in foundation repair to guarantee safety and effectiveness. Additionally, the required equipment, such as hydraulic jacks ($500-$1,500), concrete mixers ($1,000-$3,000), rebar cutters ($200-$500), laser levels ($100-$500), shoring beams ($300-$1,000), and excavation tools ($100-$500), can be quite costly.
Note: Prior to beginning any underpinning project in Ontario, it is essential for homeowners or contractors to secure the required permits from the local municipal building authority.
Yes, underpinning and basement lowering can significantly increase the usable space in your home and add value to your property, making it a worthwhile investment.
The cost can vary, but on average, you might expect to pay between $200 to $350 per square foot. It’s best to get a detailed quote for an accurate estimate.
While a reputable contractor will provide a comprehensive estimate, additional costs can arise from unexpected issues, such as poor soil quality or the need for additional waterproofing.
Article written by VMB Group Underpinnings, with over 20 years of experience in the industry. Our team of 20 skilled crews has completed more basement underpinning projects in the city than any other company. With 5-star reviews on Google, we pride ourselves on delivering top-notch basement underpinning, foundation repairs, and more. Contact us for a free estimate today!

This budget basement lowering project in North York, completed for $15,000, focused on transforming the basement into a safer and more functional living space. VMB Group’s meticulous planning and execution ensured cost-effectiveness while enhancing the homeowners’ quality of life.

This $25,000 basement lowering project in East York transformed an aging basement into a safe and functional living space. By focusing on strategic cost allocation, VMB Group ensured efficient planning and execution, enhancing the home’s usability while maintaining budget discipline.

This $30,000 basement underpinning project in Vaughan focused on creating a safe, dry, and functional living space for the homeowner. VMB Group strategically allocated the budget to include structural supports, waterproofing, and energy-efficient insulation, ensuring the project was completed on time and within budget.
