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  • Writer's pictureDarrel Birkman

Basement Underpinning Cost Toronto [in 2024]

Updated: Nov 18

Basement Underpinning Project in Progress. Image Source: OREA

What is Basement Underpinning?

Basement underpinning is a construction technique used to lower basement floor and strengthen the foundation of your property. During this process the depth of the foundation will be increased deeper in the ground. Basement floor will be lowered along with the foundation.


Basement Underpinning Cost in Toronto – winning opinion

Cost of Basement Underpinning in Toronto ranges from $78-$300+ per square foot, according to

  • Average Basement Underpinning Cost in Toronto: $56,000

  • Underpinning Cost per Square Foot: $78-$300+


Basement Underpinning project - plumbing installation. Image Source: Wikipedia

Underpinning Price Breakdown in Toronto

Let's break down an average basement underpinning project to understand what is involved. Basement underpinning scope of work varies from project to project, depending on the specifics of your property.

Let's review an average basement underpinning project in Toronto.

Project Stage

Toronto Cost

Structural Design

  • Soil Analysis

  • Structural Design

  • Drawings Created


(can be ordered from Engineers separately or offered by Basement Underpinning company)

​Basement Underpinning Execution

  • Support Beams Installed

  • Basement Underpinning

  • New Concrete Footings Poured

  • Basement Floor is Lowered

  • Wall Cracks Repaired

  • Plumbing rough ins, weeping tiles, Sump Pump are installed

  • Basement waterproofing (recommended)

  • Basement is Finished (optional)


Basement Underpinning Cost Factors Toronto

  • Time – the main cost factor, various complications of your project will ultimately impact the amount of time your project takes

  • Materials – used in your basement, for example, reinforced concrete is harder to remove compared to the regular concrete

  • Damage – basement underpinning cost will vary depending on the extent of the foundation damage

  • Basement Underpinning Company – experienced basement underpinning contractors often cost more

  • Ease of Access – basements that are easier to access will take less time to remove the soil and concrete

  • Basement Size – basement underpinning cost is often higher for larger basements or basements that require floor lowering deeper into the ground

Basement Underpinning Alternative - Bench Footing. Image Source: ASUC

Basement Underpinning Alternatives & Costs

Depending on goals of your project, professionals may suggest alternative routes that may help you achieve some of the basement underpinning objectives such as basement floor lowering, foundation repair or increased living space.

In addition, basement udnerpinning may be paired with some of the projects to maximize the benefits of the construction project and avoid future disruptions.

​Projects Similar to Underpinning


$70-130 per square foot

$70-$100 per

Basement Walkout Construction



Home Additions

​$300-$400+ per square foot

Basement Underpinning Providers in Toronto

Service Provider


Service Areas



Toronto, GTA, South Ontario





Around $50,000

Moose Basements


Toronto, Simcoe, Hamilton, Oshawa

Around $50,000



South Ontario




South Ontario


Is Underpinning Worth the Investment?

Remember, while these benefits can make basement underpinning an intriguing option, it's important to remember that it's a significant project that requires professional execution.

Always seek the advice of structural engineers or other professionals before making a decision.

  • Increased Structural Stability - underpinning strengthens the foundation of your home, increasing its overall structural stability and durability.

  • Improved Safety - basement underpinning can strengthen the foundation and increase its load bearing capacity.

  • Extra Living Space - if the underpinning process is used to increase the height of your basement, it can create additional livable space in your home. This new space can be used for a variety of purposes, including a games room, an extra bedroom, or a rental unit.

  • Property Value - more space in your property often means higher value of the proerty.

  • More Air & Light - in some cases during the basement udnerpinning projects, property owners also get basement wall cutouts and basement walkout construction that allow them to get more air and light in the basement.

Basement Underpinning - Useful Information

About the Author

This article is written by concrete, demolition and foundation repair company serving Toronto, GTA and South Ontario. Our team of contractors can help with basement underpinning, bench footing, crawlspace conversions and other projects.

Get a FREE estimate today!

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