A gold and silver round badge with the words Lifetime Warranty written twice in a circular pattern around the edge, and a central banner also displaying Lifetime Warranty. The badge has star accents. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

your basement experts for over 63 years

A gold and silver round badge with the words Lifetime Warranty written twice in a circular pattern around the edge, and a central banner also displaying Lifetime Warranty. The badge has star accents. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500
Basement Waterproofing2025-07-07T15:10:05-04:00

Toronto’s Most Trusted
Basement Waterproofing Company Since 1961

Protect Your Basement from Water Damage — For Good

Get Your Free Estimate Today

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The image shows the BILD logo featuring the word BILD in gray with a green architectural design within the letter D. Below, the text reads BUILDING A BETTER GTA TOGETHER in gray. A green star shape with a building icon is to the right. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500
The image shows a blue and white logo with the text BBB Accredited Business and A+ Rating. The BBB torch emblem is on the left. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500
A gold circular badge with a serrated edge. The outer ring is labeled Lifetime Warranty in white text. The inner section has a gray banner with the words Lifetime Warranty in bold black text. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

“We’re not just another basement waterproofing company—we’re the name homeowners trust for foundation repair and long-term peace of mind.”

Why Homeowners Choose City Wide Group

Since 1961, City Wide Group has been Toronto’s go-to basement waterproofing company. We specialize in interior and exterior waterproofing services designed to prevent flooding, protect your home’s foundation, and improve long-term property value. With a lifetime transferable warranty and award-winning service, we bring peace of mind to homeowners across the GTA.

Over 63 Years of Experience

Family-Owned, Canadian Company

22× Consumer Choice Award Winner

24/7 Emergency Services

Lifetime Transferable Warranty

Transparent Pricing & Free Estimates

Thousands of Happy Customers

Fully Insured & Safety-Compliant

High-Quality Canadian Materials

Trusted by Homeowners for Reliable Basement Waterproofing

Our Basement Waterproofing Services

Each service is delivered by experienced technicians using high-quality Canadian materials. If you’re searching for a reliable basement waterproofing company in Toronto, you’ve come to the right place.

A flooded basement with murky water covering the floor. Several cardboard boxes float in the water. The walls are plain with two small windows near the ceiling. A light fixture is on the ceiling, and pipes are visible. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Basement
Waterproofing

Water issues in your basement can silently cause long-term damage—but they’re preventable with the right expertise. At City Wide Group, we provide expert basement waterproofing in Toronto to prevent leaks, flooding, and long-term problems. With decades of experience and proven solutions, we’ve built a reputation as one of the most trusted waterproofing companies in Toronto.

The corner of a house foundation is exposed, showing blue waterproofing membrane applied to the exterior walls, with a brown downspout attached. The surrounding soil has been dug out for what appears to be foundation repair. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Exterior
Waterproofing

City Wide Group offers expert exterior waterproofing services in Toronto to keep your foundation dry and protected year-round. By addressing the problem at its source—from the outside—we prevent water from ever entering your basement. As a trusted waterproofing company Toronto homeowners rely on, we use proven techniques that ensure long-term results.

A basement corner with a brown dimpled waterproof membrane attached to the concrete walls, exposed wiring, utility piping, and unfinished flooring. Some wooden boards and electrical panels are mounted on the wall. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Interior
Waterproofing

Our interior waterproofing solutions are designed to stop water infiltration from inside your home, using advanced sealing systems and drainage channels. This is an ideal option when exterior waterproofing isn’t feasible due to space or property constraints. Count on City Wide Group for reliable and cost-effective basement waterproofing in Toronto.

A bare, partially stripped room with exposed wall studs and no flooring. A fan and a dehumidifier are on the floor, with cords trailing. A small window lets in light and a detached door leans against the far wall. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Basement Flooding
and Water Damage

City Wide Group offers expert exterior waterproofing services in Toronto to keep your foundation dry and protected year-round. By addressing the problem at its source—from the outside—we prevent water from ever entering your basement. As a trusted waterproofing company Toronto homeowners rely on, we use proven techniques that ensure long-term results.

Water pooling on the floor in the corner of a basement with white painted concrete walls, showing signs of moisture and possible mold. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Leaky
Basement Repair

Our interior waterproofing solutions are designed to stop water infiltration from inside your home, using advanced sealing systems and drainage channels. This is an ideal option when exterior waterproofing isn’t feasible due to space or property constraints. Count on City Wide Group for reliable and cost-effective basement waterproofing in Toronto.

Several workers in safety gear are cleaning or working on the floor of a large, unfinished indoor space with exposed ceiling tiles and columns. Construction materials and fire extinguishers are visible around the room. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Commercial
Waterproofing

We bring the same precision and quality to commercial waterproofing projects as we do to residential ones. Whether you manage a multi-unit building or a retail space, we provide custom waterproofing solutions tailored to your property. As one of the top waterproofing companies in Toronto, City Wide Group delivers professional, large-scale protection you can count on.

A construction worker in a high-visibility vest and hard hat kneels in a deep, dug-out trench, partially covered by a slab of concrete, working or inspecting something underground. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Basement
Underpinning / Lowering

Create more usable space and add value to your home with our expert basement lowering services. Through safe and effective underpinning, City Wide Group helps homeowners gain ceiling height while reinforcing foundation integrity. If you’re planning a basement renovation, this is the ideal first step.

A cracked beige wall with a prominent vertical fissure running from the bottom up, next to a slightly slanted surface, possibly a floor or furniture. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Foundation
Cracks Repair

Even small foundation cracks can grow into serious structural threats if ignored. At City Wide Group, we specialize in precise crack repair to stop water intrusion and maintain your home’s stability. Trust a leading Toronto basement waterproofing expert to secure your foundation for the long term.

A sump pump system installed in a basement floor pit, with connected white PVC pipes, a blue hose, and a float switch mechanism visible inside the circular pit. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Sump Pump
Services and Installation

A properly installed sump pump is your basement’s first line of defense against water damage. We provide complete sump pump installation and maintenance services, helping Toronto homeowners avoid flooding during heavy rains. Count on City Wide Group to keep your home dry and protected, no matter the season.

A plumber wearing a plaid shirt, overalls, and a headlamp uses a pipe wrench to work on copper pipes attached to a brick wall in a dimly lit room. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Drain Cleaning
and Replacement

Blocked or deteriorating drains can lead to serious basement water issues if not addressed quickly. At City Wide Group, we offer professional drain cleaning and replacement services to keep your drainage system working properly and prevent costly water damage. Whether it’s a routine cleanout or a full pipe replacement, our team ensures your home is protected as part of our trusted basement waterproofing services in Toronto.

A person wearing protective gear sprays a chemical on a moldy wall for cleaning or removal. They wear a white suit, gloves, mask, cap, and carry a spray tank on their back. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Mould
Removal

Excess moisture in your basement creates the perfect environment for mould growth, which can impact both your health and your home’s structure. City Wide Group offers safe, thorough mould removal services as part of our comprehensive basement waterproofing solutions. Protect your living space and breathe easier with help from a leading Toronto waterproofing company.

Large black corrugated drainage pipes are coiled on green grass near a trench filled with gravel, likely prepared for installation as part of a landscape drainage system. Waterproofing Company | Basement Leak Repair | City Wide Group | Professional waterproofing company and basement leak repair in Toronto since 1961. | https://www.citywidegroup.com | +1 416-283-5500

Weeping Tile
Installation

A properly installed weeping tile system is essential for keeping groundwater away from your foundation and preventing basement leaks. At City Wide Group, we specialize in modern weeping tile installation that helps redirect water efficiently and protects your home from long-term damage. As part of our full-service basement waterproofing in Toronto, we ensure every drainage solution is built to last—giving you peace of mind with every rainfall.

Our Waterproofing Process

Our approach is simple, transparent, and designed around your home’s unique needs. While each project is tailored, here’s how the process typically works:

  • Free, No-Obligation Inspection: One of our experienced technicians visits your home to assess the issue and determine the best course of action.
  • Customized Quote: You’ll receive a clear, written quote with recommended services, timelines, and warranty details—no hidden fees.
  • Expert Installation: Our trained crews perform the work efficiently and professionally, using proven waterproofing methods and Canadian-made materials.
  • Cleanup & Restoration: We take care to leave your property clean and return everything to its original condition as best as possible.

Final Walkthrough & Warranty: Once work is complete, we conduct a walkthrough with you and provide a lifetime transferable warranty for peace of mind.

Ontario Locations

Vancouver Location

Basement Waterproofing FAQs:
Everything Toronto Homeowners Need to Know

What’s the best time of year to waterproof my basement?2025-03-18T18:28:57-04:00

Spring and summer are ideal due to dry conditions, but winter waterproofing is also possible with modern techniques.

How long does it take to waterproof a basement?2025-03-18T18:27:35-04:00

Typically, 1 to 3 days, depending on the size of your basement and the method used. City Wide Group ensures efficient, high-quality service with minimal disruption.

Is waterproofing safe for older homes?2025-03-18T18:27:20-04:00

Absolutely! Many older homes in Etobicoke, Scarborough, and other areas benefit from waterproofing to reinforce aging foundations and prevent moisture damage.

Can basement waterproofing help with foundation cracks?2025-03-18T18:27:09-04:00

Yes! Many waterproofing solutions include foundation crack repair to prevent leaks and structural weakening.

Will waterproofing stop basement flooding?2025-03-18T18:26:57-04:00

While basement waterproofing significantly reduces the risk, adding a sump pump installation and weeping tile system further enhances flood prevention.

Do you offer financing for basement waterproofing?2025-03-18T18:26:43-04:00

Yes! City Wide Group provides flexible financing options to make affordable waterproofing services for homeowners across Ontario.

How much does basement waterproofing cost in Ontario?2025-03-18T18:26:31-04:00

Costs vary depending on the method used and the extent of the issue. Exterior waterproofing generally costs more than interior waterproofing, but both provide long-term protection. Contact us for a free estimate.

Can waterproofing increase my home’s value?2025-03-18T18:26:17-04:00

Yes! A dry, mold-free basement is a strong selling point. Buyers look for homes with professionally waterproofed basements, making it a valuable investment.

What areas do you provide basement waterproofing services in?2025-03-18T18:26:03-04:00

We serve multiple locations across Ontario, including Toronto, Mississauga, Markham, Brampton, and more.

How do I know if my basement needs waterproofing?2025-03-18T18:25:00-04:00

Common signs include water stains, damp walls, musty odors, or visible cracks. If you notice any of these, a professional basement waterproofing assessment is recommended to prevent further damage.

Why is basement waterproofing important for Toronto homes?2025-03-18T18:24:41-04:00

Toronto’s fluctuating weather conditions, from heavy rain to freezing temperatures, can cause significant foundation damage. Basement waterproofing in Toronto helps prevent water seepage, mold growth, and structural issues, protecting your home’s value and indoor air quality.

What causes blocked main drains, and how can they be fixed?2025-03-04T17:07:28-05:00

Blocked main drains are usually caused by a buildup of debris, grease, tree roots, or collapsed pipes. Common signs include slow drainage, gurgling sounds, and sewage backups. To fix a blocked main drain, professional drain cleaning methods such as hydro jetting or snaking are used to remove obstructions. In severe cases, drain replacement may be necessary. If you suspect a blockage, it’s best to consult an expert to prevent water damage and further plumbing issues.

What is basement underpinning, and why is it important?2025-03-04T17:07:46-05:00

Basement underpinning is the process of strengthening and lowering a home’s foundation to increase ceiling height and structural stability. It is commonly done to add more usable space, improve property value, and prevent foundation issues caused by shifting soil or water damage. If you’re considering basement underpinning in Toronto, it’s essential to work with experienced professionals to ensure safety and compliance with local building codes.

Can basement waterproofing be done year-round?2025-02-26T16:10:14-05:00

Absolutely. Basement waterproofing in Toronto can be completed any time of the year. While spring and summer are preferred due to easier soil excavation, our team is equipped to handle projects in all seasons.

Is there a warranty for basement waterproofing services?2025-02-26T16:10:02-05:00

Yes, City Wide Group offers a lifetime transferable warranty on basement waterproofing in Toronto. This guarantees your home stays protected and adds value if you decide to sell in the future.

Are basement waterproofing services covered by insurance?2025-02-26T16:09:49-05:00

Insurance coverage for basement waterproofing varies. While many policies don’t cover preventative measures, they might cover damage caused by water intrusion. Check with your provider for details specific to your policy.

What causes foundation cracks, and how can they be repaired?2025-03-04T17:08:05-05:00

Foundation cracks are often caused by shifting soil, freeze-thaw cycles, or water pressure. They can be repaired using specialized methods such as epoxy injections or exterior waterproofing, ensuring long-term stability and water resistance.

How does weather in Toronto affect basement waterproofing?2025-02-26T16:09:22-05:00

Toronto’s harsh winters, heavy rainfall, and fluctuating temperatures can impact your home’s foundation, increasing the need for effective basement waterproofing. Proper waterproofing ensures your basement stays protected in any weather.

What is a sump pump, and do I need one?2025-02-26T16:09:08-05:00

A sump pump is a device installed in your basement to remove water that accumulates in a sump basin. It’s essential for homes prone to flooding or heavy rainfall, offering an additional layer of protection as part of your basement waterproofing in Toronto.

Do I need basement waterproofing even if I don’t see leaks?2025-02-26T16:08:15-05:00

Yes, proactive basement waterproofing in Toronto is crucial. Even if there are no visible leaks, underlying issues may exist that could worsen over time. Preventative waterproofing saves you from unexpected problems and costly repairs.

Share This Information About The City Wide Group Inc.

Lifetime, Fully Transferable Warranty

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.*

    *completion status of grounds and landscape may vary dependent on agreement with City Wide Group.

FREE WATERPROOFING ESTIMATE

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.

Company Information

25 Hollinger Road,
East York, Ontario, M4B 3N4

Phone: +1 416 283 5500

Web: Website

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