Underpinning Toronto - Canada Waterproofers Basement Waterproofing Company

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Many homeowners are looking at underpinning the basement to add more ceiling height, followed by a full renovation of the space. Canada Waterproofers Clarington is your one-stop resource for underpinning basements – also called “basement lowering.” Underpinning is also a process that can strengthen the foundations of your home – important if you are considering adding another level to the home, for example.

Our crew will dig below the existing basement footings and walls that support the house, extending the walls downwards, giving you that extra space.

Canada Waterproofers Clarington can underpin your home at an affordable price. More importantly we’ll do it safely. We have all the skills and training needed to provide you with the safest underpinning service in the GTA.

This is a process you can work on – getting the drawings done with an engineer, or getting the proper city permits. Or, we can handle all that for you.

Typical cost for drawings and permits is between $2,500 – $3,500, depending on the size of the project.

But considering the value you will add to your home, in a robust housing market, the end advantages will far outweigh the initial cost to get it done.


  1. Basement cleared
  2. Basement demolished
  3. Transporter installed into window
  4. Bin arrives for soils
  5. Concrete floor removed
  6. Walls are underpinned by sections
  7. Inspections of all individual sections
  8. Soil is removed and disposed
  9. Interior drains are replaced
  10. Interior waterproofing installed
  11. Sump pump installed
  12. Sewage ejector installed if needed
  13. Gravel installed
  14. Vapor barrier installed
  15. Concrete is poured with trowel finish
  16. Work areas cleaned


Canada Waterproofers Clarington is the best underpinning company in the GTA. If you’re looking for integrity, honesty and reliability, the highly skilled workers at Canada Waterproofers Clarington are here for you.

Call today and receive a free assessment of your home to see if underpinning is right for you.


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Licenses P25298, B25300, T94-4543511

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  • 25 year transferable warranty
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