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Ajax Underpinning & Basement Lowering

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Underpinning Licenses and Reviews

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


Basement lowering has become an appealing option for many homeowners in Toronto looking to maximize their living space. This construction procedure, also known as basement underpinning, involves digging deeper into the basement floor to increase the height of the basement ceiling. Here’s an in-depth look into the costs and factors involved in basement lowering in Toronto.

What is Basement Lowering?


Basement lowering involves excavating the soil beneath an existing basement floor and lowering it. This is often complemented by underpinning the foundation to ensure structural stability. The added space can transform cramped basements into livable areas like home gyms, offices, or extra bedrooms.

How Much Does Basement Lowering Cost In Toronto?


Basement lowering in Toronto typically costs between $250 to $400 per square foot. This means for an entire project, homeowners could be looking at costs ranging from $30,000 to $60,000 or more, based on the scope and scale of their basement project. Accurate pricing depends on various factors including project complexity and desired finishing levels, so consulting with a basement lowering specialist is recommended for a detailed estimate.

Factors Influencing the Cost of Basement Lowering


Several variables impact the cost of basement lowering, including:

  1. Size of the Basement: Larger basements require more labor and materials, increasing overall costs.
  2. Foundation Condition: Older homes might require additional repairs or stabilization, adding to the expense.
  3. Soil Type: The type of soil under the house can affect the complexity of the excavation process.
  4. Existing Utilities: Relocating plumbing, electrical, and HVAC systems can add to the cost.
  5. Depth of Lowering: The amount by which you lower the basement affects the complexity and duration of the project.
  6. Permits and Inspections: Obtaining necessary permits and passing inspections can also incur additional costs.

Benefits of Basement Lowering


  • Increased Living Space: Transform underutilized basements into functional rooms.
  • Enhanced Property Value: An upgraded basement can significantly increase the resale value of a home.
  • Improved Structural Integrity: Proper underpinning can stabilize older foundations and prevent future issues.

Steps Involved in Basement Lowering


  1. Assessment and Planning: Engineers assess the site, and plans are drawn up.
  2. Permitting: Necessary permits are obtained from local authorities.
  3. Excavation: Soil is excavated to the desired depth.
  4. Underpinning: Foundation walls are underpinned to support the new depth.
  5. New Floor Installation: A new concrete floor is poured.
  6. Final Touches: Utilities are reinstalled, and finishing touches are added.

Hiring a Professional


Due to the complexity and risks involved, hiring a professional contractor with experience in basement lowering is crucial. One trusted professional you can consider is VMB Group.


With over 20 years of experience, VMB Group is Toronto’s top choice for basement underpinning and lowering. Our dedicated team of 20 crews has completed more basement underpinning projects in the city than any other company. People choose VMB Group because we offer competitive rates, exceptional craftsmanship, and a commitment to safety and customer satisfaction.



Basement lowering is a substantial investment but can offer remarkable benefits in terms of space and property value. If you’re considering this renovation in Toronto, it’s essential to understand the factors affecting costs and to work with experienced professionals like VMB Group to ensure a successful project.

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