NTL Contracting Best of Trusted Pros Award 2016
NTL Contracting Best of Trusted Pros Award 2017
NTL Contracting Best of Trusted Pros Award 2018
NTL Contracting Best of Trusted Pros Award 2019
NTL Contracting Best of Trusted Pros Award 2020

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NTL Contracting is a family-owned Toronto underpinning company that has over 20 years of experience in the business. When your property has limited space or access, and the cost of a new build is out of the question, lowering your basement may be the solution you need. We service both residential and commercial properties.

Reap the benefits of having professional restoration contractors underpin your basement. We provide professional underpinning services in Toronto and across the GTA to help homeowners and business owners alike maximize their space.

Everyone has a right to liveable space. Basement underpinning helps owners make the most of the room they do have by adding additional underground square footage to a property. If you have a crawlspace, cold room, or anything of the sort, consider how NTL Contracting can help you expand your lower floors to be a full basement.

Why move for a little bit more room when you can facilitate more room in the home you already live in? Consider the benefits of working with a professional Toronto underpinning company today.

Toronto Underpinning Company

NTL Contracting is a Toronto underpinning company that’s been in the business for over two decades. We boast a team of experienced and skilled underpinning contractors who take on projects for residential and commercial properties across the GTA.

We understand the intricacies and value of lowering your basement and will do so with a high level of service, professionalism, and dependability.

When you work with us, we provide our services with quality materials and attention to detail. We provide all of our services with a 25-year warranty for your peace of mind.

Basement Underpinning Services in Toronto

You can rely on NTL Contracting for professional basement underpinning services in Toronto. Our underpinning contractors are familiar with all the essential steps and materials needed to underpin a basement. We get the job done efficiently and effectively.

Our contractors provide preliminary foundation work to ensure your space is ready for basement lowering and waterproof your basement after to protect your new space from any incoming water.

We offer both residential and commercial services, and our contractors boast experience with both large and small scale projects.

When you hire us for basement underpinning in Toronto, we take all the necessary steps and precautions to maintain your property’s structural integrity before, during, and after the project is completed. Find out what NTL Contracting can do for you.

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Before installing underpins, we build structural support to ensure that the foundation can support the main house above. You can rest easy knowing that our foundation contractors have ample experience installing new block walls and pouring the concrete foundation.

We provide professional foundation services to maintain the structural integrity of your home when we underpin your basement.

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Basement Excavation:

We provide basement excavation services to dig out the space needed to underpin your basement and will address anything that may need repair. Our excavation contractors are experienced with operating machinery for quick and effective excavation and will get the job done thoroughly.

We will only begin a project after we excavate the space and repair any damage that needs fixing.

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After the excavation is complete, we use concrete to underpin the basement. Concrete is essential to a property’s structural integrity as it helps to add strength and depth to your existing foundation.

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After the fact, we provide waterproofing services to protect your new basement from future water damage and moisture.

Waterproofing is essential after you underpin a basement as it helps to maintain the quality of work provided and protects your basement from water seeping in.

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Additional Concrete:

After waterproofing your basement, we pour new concrete to ensure that the structure is adequately supported and structurally sound. This concrete helps make sure that your underpinned basement boasts the structural integrity needed to support your home or commercial property.

Our underpinning contractors in Toronto have the skills, resources, and materials needed for concrete finishing. We provide the concrete flatwork you need to ensure that your underpinned basement is a livable space.

The Underpinning Process

Underpinning is a multi-step job that requires precision, patience, and professionalism, which is why it’s essential to consider experience and reputation when looking for underpinning companies in Toronto.

At NTL Contracting, we have countless successful small and large-scale jobs under our belts. Our contractors get the job well and work with a high level of service and professionalism.

We maintain a thorough and safe process to ensure the security of your space and its ability to withstand pressures like heavy rainwater and other extreme weather conditions. Consider the intricate process we maintain for every project to ensure customer satisfaction each time:

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STEP 1. The contractor digs out the floor underneath and pours in new concrete while the underpins are installed to support the basement structure. This process will strengthen your home’s structural integrity as it gives excavators the chance to repair any cracks in your current foundation.

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STEP 2. Each section or pocket of the basement is excavated to the new desired height and is formed and poured with concrete to add strength to the existing footings and foundation wall.

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STEP 3. Once completing the process, we excavate the remaining soil to increase the basement’s overall height.

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STEP 4. If approved by homeowners, we will wrap up the project by waterproofing your basement. Homeowners typically opt for this option to ensure that no groundwater seeps in through their new basement foundation.

Before Your Basement Underpinning Project

When we underpin your basement in Toronto, there are various factors we take into consideration and services that we provide. We consider these essential factors beforehand to ensure the effectiveness, safety, and legality of your project.

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Building Structure:

You want the foundation of your property to be stable and durable. Before we underpin your basement, we always study the structure of your property — whether it be a home or building — to maintain its structural integrity.

We use architectural plans and do a walkthrough to inspect your property’s current structure. This helps us identify where to begin.

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Legal Compliance:

When you underpin your basement in Toronto, you need to ensure that your project complies with your neighbourhood or commercial building code. For example, you will require a signed agreement from any neighbour with whom you share a wall to confirm their consent.

The Government of Canada has specific guidelines for those seeking a building permit to underpin the foundation of an existing house. When you work with NTL Contracting, you can have peace of mind that we will make sure all the necessary building permits are obtained. We are with you every step of the way.

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Road Closures:

Depending on your project’s scope, we will organize any necessary road closures while the work is in progress.

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Before you underpin your basement, it is essential to consider the utilities that the project may impact. This is why we make sure to map out any power lines or water pipes that may be affected by the project. We address and work around present utilities to avoid any damage.

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Safety Precautions:

We take the necessary safety precautions to ensure that the safety of our customers and any other residents or customers are protected. You can trust us to get the job done safely, securely, and efficiently.

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We utilize professional materials to underpin your basement and ensure that the job is done properly. We bring in the necessary equipment to perform the excavation and support the above floors and walls.

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The intricacies and legalities surrounding choosing to underpin your basement can be overwhelming. NTL Contracting will alleviate these pressures by helping you submit the necessary paperwork to ensure your project is completed safely and complies any relevant building codes.

Choose NTL Contracting


NTL Contracting is fully insured and has been lowering basements for homeowners and commercial buildings for over two decades.


NTL Contracting is a Canadian owned & operated company that’s committed to providing basement solutions for properties across Toronto and the GTA.


Work with basement underpinning companies in Toronto who provide upfront costs.

NTL Contracting offers free online quotes to ensure you know exactly what you are committing to. Rest assured that, when you work with us, there are no hidden or surprise fees.


We maintain a commitment to delivering quality services with a high level of professionalism, dedication, and attention to detail.

We are committed to our customers’ overall satisfaction but don’t take our word for it. Trust the countless glowing reviews from our happy customers.


When you work with NTL Contracting, you get a guaranteed, transferable 25-year warranty on our services for your peace of mind.

Basement Underpinning Frequently Asked Questions

Underpinning is the process of lowering your basement footings to create more height and, subsequently, more space in your home. It allows you to increase your ceiling height in unusable areas to create new living spaces that are functional and serviceable.

To underpin a basement, the basement is dug downward to ensure that all walls are still supported. The process is divided into small sections working around the perimeter of your foundation walls to avoid jeopardizing your home’s safety and stability while the work is being completed.

While this process can increase your basement’s height by a couple of feet, it sometimes requires licensing agreements with your neighbors if you happen to share walls underground.

Property owners will underpin their basement to add height or extend their basement to create more living or working space. This can be useful for a wide variety of reasons, whether that be to add extra rooms to your property or to repurpose your commercial building. Common reasons include:

  • To make your crawlspace into a full basement
  • To add height to a low basement
  • To expand your cellar into a liveable basement space
  • To repair foundation issues

When you underpin a basement, you add height and more livable space to the area. The results can be beneficial for homeowners and property owners alike for various reasons:

  • Higher ceilings
  • Improved lighting
  • Availability for more rooms
  • Options to create tenant space
  • Added storage space
  • Increase home value
  • Preserved structural integrity

The difference between benching and underpinning is that, while they both create more height and space, their methods differ significantly. When you underpin your basement, underpins are installed to support the basement structure. Underpins are installed when excavating your basement and pouring the concrete.

This process also helps to strengthen your home’s structure as, while adding space, it also ensures any cracks in your foundation are repaired and filled.

Benching, on the other hand, will place footings around your basement’s walls. Also known as bench-fitting, this process does not require digging or excavation to add space. Benching is a more affordable option, but underpinning methods result in more livable space.

The cost of basement underpinning in Toronto depends on your timeline, the size of your current space, the size of the space you are looking to achieve, the overall structure of your home, and the permit process — among other factors.

The cost varies greatly from project to project, but we make it easy to obtain a realistic quote for your project. You can get a free quote from NTL Contracting when you fill out our form online.

Basement Underpinning Gallery: Our Work


The ‘Best of TrustedPros’ award is given to members who have received the most reviews with the highest ratings and fewest complaints from their clients, suppliers, and employees within a specific category while maintaining a positive TrustScore. Read our reviews on today.

NTL Contracting Best of Trusted Pros Award 2016
NTL Contracting Best of Trusted Pros Award 2017
NTL Contracting Best of Trusted Pros Award 2018
NTL Contracting Best of Trusted Pros Award 2019
NTL Contracting Best of Trusted Pros Award 2020

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