Basement WaterProofing

Basement waterproofing is the process of preventing water from entering the basement of a house or a building. It can improve the structural integrity, health, and value of the property. The Waterproofing basement can be done from the inside or the outside, depending on the source and severity of the water problem.

Some common methods of basement waterproofing in Toronto are:

Applying concrete waterproof coatings, silicate-based concrete sealers, or waterproof paint to the interior walls of the basement. These products can create a barrier that blocks moisture from seeping through the pores of the concrete or masonry, especially when dealing with Interior Waterproofing in Toronto.

Underpinning the basement and installing drains and a sump pump on the basement floor. These devices can collect and pump out the water that accumulates under the basement slab or around the foundation, providing effective Basement Waterproofing Services. They can also prevent flooding and water damage in case of heavy rain or snowmelt.

At Rock Bottom Underpinning, we understand the importance of waterproofing a basement. With over 35 years of experience as the leading Basement Waterproofing contractor in Toronto, we specialize in delivering comprehensive and affordable solutions tailored to the unique needs of GTA homeowners. As trusted underpinning specialists and experts in Waterproofing Company Toronto, our services go beyond the ordinary, ensuring the long-term protection and well-being of your property.

To learn more about our Toronto basement waterproofing services and help you protect your greatest investment, give us a call today! You can also fill out our online form now to get started with a free, no-obligation estimate for all your waterproofing needs.

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Fully Insured Work

Our professional team is fully insured and has extensive experience, professional training
and a commitment to superior service

Why Choose Us

Rock Bottom Underpinning Truck

Our Values

Rock Bottom Underpinning provides exceptional service and a completely insured project for our customers. We are committed to providing the highest level of professionalism, service response, and quality workmanship. When working on your project, Rock Bottom Underpinning treats your most valuable asset like its our own!

Professional Team

We at Rock Bottom Underpinning have a team of well-experienced and qualified professionals. Our work is specialized and requires skills that not every companies’ employees possess. We are constantly going through specialty training and we always use high-quality tools, materials and equipment to create a professional finished product. Our employees are the foundation of our company and your home. Also, our list of trusted professionals extends beyond our company;
  • Structural Engineers
  • Architects
  • Mechanical Engineers
  • Heating and Air Conditioning partners
  • Electrical Professionals
  • Plumbing Specialists
  • Renovation Contractors
We have all of the support required to make sure your project is completed professionally, on time and on budget.

Trusted Local Company

We are proud of the reputation the Rock Bottom Underpinning has built over the years. We are extremely proud of the endless word of mouth referrals we continually receive from our valued customers. We are not just any regular contractor, renovation company, or excavation company. Underpinning is in our name, this is what we do, our name is what we stand behind! Rock Bottom Underpinning is the company you can trust to execute your project with expertise, professionalism, on time and on budget. If it's not in the name, think twice about who is underpinning your most valuable asset.


Dion and his crew completed our underpinning safely and on schedule. The price was competitive, Dion was responsive, and any small issues that came up along the way were dealt with professionally. We were very pleased and wouldn't hesitate to recommend Rock Bottom.

- Alex

After getting 3 quotes we decided to hire Dion and his Rock Bottom Underpinning team. Our basement height was under 6 ft and now is 8ft. Dion & his crew do excellent work, and kept us well informed through the entire process. His estimate of cost and time was right on the target.

- Derek

This was not our first renovation but it is our biggest one and we had been planning and saving for an overhaul of our century home for 3 years. We sourced out three quotes and Dion at Rock Bottom was not only the most affordable but we also had a gut feeling we could trust him from Day 1.

- Katie

Rockbottom’s workmanship, customer service, team and overall final product was excellent! The project consisted of a full underpin, new water service and sewer main, and a large/complicated back addition. Dion and Jamie were always easily accessible and ensured the project ran efficiently and to budget

- Naram

Excellent service and workmanship. Personnel was very knowledgeable and accommodating with schedule updates. Project was on time and on budget which is all you can ask for

- Paul


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