The process involves extending the existing foundation vertically so you can add a below-grade floor of 100% usable living space. Basement underpinning can also add significant value to your home when it’s time to move because of the versatility a finished basement brings. Whether the space is a used a rec room or converting the basement into a rental unit to supplement your income, basement underpinning is a great investment.

What is Basement Underpinning?

Basement underpinning is not just for added space, but also strengthens your home’s existing foundation. City Wide Group uses a combination of concrete and piers, with the concrete adding to the overall durability of the foundation and the piers increasing the load it can withstand. Even if you have no desire to add extra space, it may be required to preserve the structural integrity of your home.

Signs your Home RequiresBasement Underpinning:

  • You find extensive cracking on the walls and moisture is seeping in from the underlying soil bed
  • You are adding new floors to the home and require the foundation to be reinforced to bear the added weight
  • Heat is escaping from the basement even after basic repairs with mortar and insulation

Benefits of Basement Underpinning:

  • More living space
  • More head room
  • Reinforces your home’s foundation
  • Conserves energy through repaired insulation
  • Increases the value of your home

Read more on the benefits of basement underpinning.

Why City Wide Group?
City Wide Group is your trusted named for basement underpinning and are knowledgeable professionals do it right the first time. What we bring is decades of experience in completing successful underpinnings that have allowed countless Canadians to get more out of their home.

We use the safest and most advanced techniques to complete each basement lowering renovation. If you would like a free estimate on basement underpinning, call City Wide Group today at 416.283.5500 or fill out our form.

Share This Information About The City Wide Group Inc.


The City Wide Group prides itself on superior quality, adhering to the philosophy of doing things correctly from the outset and striving for unmatched customer contentment. Our assurance in our craftsmanship and wealth of experience makes us the only company in Toronto & the GTA to offer a real LIFETIME WARRANTY. Opt for The City Wide Group for foundation waterproofing, and we promise your treated area will remain free from water or moisture entry for as long as your house stands. Our services come with a warranty certificate that is transferable to endless future homeowners.

  • Before any digging gets underway, The City Wide Group ensures all utility services are informed and the dig site is clearly marked.

  • We first reveal the foundation’s walls and base, giving them a good clean to guarantee that the new concrete will bond well.

  • To deal with any cracks or openings in the foundation, we fill them with a specific type of cement before applying a fresh concrete layer over the entire area.

  • We then secure the foundation with a RUBBER BITUTHANE MEMBRANE for waterproofing, covering both the wall and its base.

  • Additionally, we attach a DELTA MS plastic mat along the foundation wall down to the base, aiding in water drainage.

  • New weeping tiles are installed to divert water from the foundation, surrounded by clean ¾” gravel to ensure proper drainage.

  • The dug-out soil is then replaced and compacted firmly to avoid any future ground movement.

  • After the work is finished, we thoroughly clean the site of any construction debris.

  • To wrap up, we repair and reinstate any outdoor spaces and landscaping that were affected by our work.




Whether you have an actual water leak or evidence of water seeping through the walls, contact City Wide Group for a free estimate about how to waterproofing your basement.

Please complete this form and we will call you back to arrange an appointment for a Free Estimate.