Skip to content

The Cost of Basement Lowering in Toronto: What You Need to Know

The Importance of Basement Lowering

Basement lowering, also known as underpinning, is a popular home improvement technique that increases the living space in your home. It involves excavating and deepening the basement floor to provide extra headroom and usable space. This can significantly increase the value of your property, as well as make your home more comfortable and functional.

Different Basement Lowering Techniques

There are several methods of basement lowering, including underpinning, bench footing, and concrete jacking. Each technique has its pros and cons, and the best option for your home depends on factors such as your budget, the type of soil and foundation, and the desired depth of the new basement floor.

Table of Contents

Factors Affecting Basement Lowering Cost:

Method of Basement Lowering

The cost of basement lowering depends on the technique used. Traditional underpinning is generally more expensive than bench footing or concrete jacking, but it provides the most structural support and is suitable for deeper excavations.

The Cost of Basement Lowering in Toronto: What You Need to Know
The Cost of Basement Lowering in Toronto: What You Need to Know

Size and Depth of the Basement

As expected, the larger your basement, the more expensive it will be to lower the floor. Similarly, the deeper you want to excavate, the higher the cost, as this requires more labour, materials, and specialized equipment.

Soil and Foundation Conditions

The type of soil and the condition of your foundation can significantly affect the cost of basement lowering. For instance, if the soil is unstable or if your foundation requires additional reinforcement, the project may be more expensive.

Permits and Regulations

Basement lowering projects in Toronto require permits and must adhere to specific building codes and regulations. The cost of obtaining permits and ensuring compliance with local regulations can add to the overall expense of your project.

Estimated Costs for Basement Lowering in Toronto:

Foundation Underpinning

Underpinning is the most common basement lowering technique in Toronto. The average cost for this method ranges from $80 to $100 per square foot, depending on the complexity of the project and the contractor’s rates.

Bench Footing

Bench footing is a less expensive alternative to underpinning, with costs typically ranging from $70 to $80 per square foot. This method involves constructing a concrete bench around the perimeter of the basement, which does not require excavation under the existing foundation. While it is more affordable, bench footing may result in a slight reduction of usable floor space.

How to Choose the Right Contractor:

Research and Reviews

When selecting a contractor for your basement lowering project, it is essential to research and read reviews from previous clients. Look for contractors with a proven track record of delivering high-quality work and meeting project deadlines.

Licenses, Insurance, and Experience

Ensure that your chosen contractor holds the necessary licenses and insurance to carry out basement lowering work in Toronto. Additionally, consider the contractor’s experience in the industry and their familiarity with the specific basement lowering technique you have chosen.

Detailed Quotes and Timelines

Obtain detailed quotes from multiple contractors and compare them based on the scope of work, materials, and costs. Make sure the quotes include clear timelines for project completion and consider any guarantees or warranties offered by the contractor.


Basement lowering is a valuable home improvement project that can significantly increase your living space and property value. The cost of basement lowering in Toronto varies based on factors such as the method used, the size and depth of the basement, and the specific requirements of your project. By researching and choosing the right contractor, you can ensure a successful and cost-effective basement lowering project.


Basement Underpinning FAQ

Most frequent questions and answers

The duration of a basement lowering project depends on the method used, the size of the basement, and the complexity of the work involved. On average, underpinning projects can take 6 to 10 weeks, while bench footing and concrete jacking may require less time.

In most cases, it is possible to continue living in your home during a basement lowering project. However, there may be some inconvenience and noise associated with the construction work.

Basement lowering can significantly increase the value of your property and provide additional living space. In many cases, the return on investment for basement lowering is high, making it a worthwhile home improvement project.

Yes, you need to obtain a building permit from the City of Toronto before starting your basement lowering project. Your contractor can help you navigate the permit application process and ensure compliance with local regulations.

Consulting with a professional contractor experienced in basement lowering techniques is the best way to determine the most suitable method for your home. They can assess your foundation, soil conditions, and project requirements to recommend the best approach.

More about Basement Construction in Toronto:

  • Toronto
  • Etobicoke
  • Mississauga
  • East York
  • North York
  • Leaside
  • Scarborough
  • Vaughan
  • Oakville
Regular Inquiries:

09:00am - 09:00pm

Monday - Saturday

Emergency - 24/7

1368 Blundell Rd. Unit 11, Mississauga, ON L4Y 1M5

error: Content is protected !!