Basement Waterproofing2026-04-29T23:43:32-04:00

Basement Waterproofing Company
in Toronto – Protecting Homes Since 1961

Protect Your Basement from Water Damage — For Good

Get Your Free Estimate Today

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

How Much Does It Cost to Waterproof a Basement in Toronto?

Basement waterproofing costs in Toronto depend on the method, the condition of your home, and the extent of the repairs needed. At City Wide Group, we provide transparent pricing, free inspections, and written estimates so you know exactly what to expect before work begins.

Basement Waterproofing Cost Guide

Waterproofing Method Estimated Cost(Per Linear Foot) Best For Details
Exterior Waterproofing Approx. $150 – $350+ per linear foot Severe leaks, accessible foundation walls Longest-lasting solution; involves excavation
and full foundation protection.
Interior Waterproofing Approx. $80 – $180 per linear foot Finished basements, less invasive solutions Redirects water from inside when exterior
excavation isn’t feasible.
Foundation Crack Injection Approx. $350 – $1,200 per crack Single vertical cracks in poured concrete Quick, affordable, and non-invasive repair option.

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.

Common Questions about Basement Waterproofing

Why would my basement drainage system need a sump pump and battery backup?

If water can’t drain by gravity, a sump pump collects and discharges it away from the foundation. A battery backup ensures protection during power outages, which often happen during heavy storms.

What is the difference between exterior and interior waterproofing?

Exterior waterproofing keeps water from penetrating foundation walls, while interior systems redirect it after it enters. Exterior protects structure long-term, while interior is a less costly short-term option.

What is weeping tile, and what does it do?

Weeping tiles are drainage pipes installed at the footing of your home’s foundation to move groundwater away and prevent leaks. City Wide Group installs 4″ ABS piping with protective sleeves to stop sediment buildup and ensure long-lasting performance.

What can cause a leaking basement?

Water can enter through cracks, mortar joints, tie rods, or window wells. Blocked or missing drainage systems also force water to find its way inside.

Why should I be concerned about basement waterproofing?

Leaks don’t just cause dampness — they can damage your foundation, trigger mold growth, and lead to costly repairs. Waterproofing is essential to protect your investment.

What does City Wide Group’s lifetime transferable warranty mean?

We are the only company in Toronto & GTA offering a true Lifetime Transferable Warranty. Once waterproofed, your foundation stays leak-free for the life of your home — and the warranty automatically transfers to future owners.

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. ..

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. ..

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. ..

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. ..

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. ..

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. ..

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. ..

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. ..

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. ..

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. ..

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. ..

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. ..

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

Does basement waterproofing come with a warranty?2026-05-08T09:39:56-04:00

Yes. Qualifying City Wide Group waterproofing services are backed by a lifetime transferable warranty, giving homeowners long-term peace of mind.

How much does basement waterproofing cost in Waterloo?2026-05-08T09:39:40-04:00

The cost depends on the size of the area, the source of the water issue, the waterproofing method, and the condition of the foundation. Exterior waterproofing generally costs more than interior waterproofing because excavation is involved. Contact City Wide Group for a free estimate.

Can foundation cracks be repaired without full waterproofing?2026-05-08T09:39:26-04:00

Some cracks can be repaired on their own, but if water pressure or drainage problems are contributing to the issue, crack repair alone may not be enough. City Wide Group can assess whether targeted repair or a broader waterproofing solution is needed.

Do I need a sump pump in Waterloo?2026-05-08T09:38:59-04:00

Not every home needs a sump pump, but it can be very helpful for properties with groundwater concerns, recurring water buildup, or a higher risk of basement flooding. A sump pump may be recommended as part of a complete waterproofing system.

Can waterproofing help protect a finished basement?2026-05-08T09:38:43-04:00

Yes. Waterproofing can help protect finished basements from water damage, mould concerns, flooring damage, and drywall deterioration. If your basement is finished or partially finished, it is especially important to address leaks early.

How long does basement waterproofing take?2026-05-08T09:38:23-04:00

Many residential basement waterproofing projects can be completed in one to three days, depending on the size of the area, the waterproofing method, and site conditions. Larger or more complex projects may take longer.

Is interior or exterior waterproofing better?2026-05-08T09:37:59-04:00

It depends on the source of the water problem and the condition of your home. Exterior waterproofing helps stop water before it enters the foundation, while interior waterproofing manages water from inside and redirects it away. A professional inspection can determine which option makes the most sense.

Why do basements in Waterloo leak?2026-05-08T09:37:39-04:00

Basement leaks can happen for several reasons, including foundation cracks, aging waterproofing systems, clogged or damaged weeping tile, poor grading, hydrostatic pressure, window well drainage problems, or seasonal freeze-thaw movement around the foundation.

What are the signs that my Waterloo basement needs waterproofing?2026-05-08T09:36:58-04:00

Common warning signs include damp basement walls, water stains, musty odours, mould growth, peeling paint, efflorescence, visible foundation cracks, water along the floor-wall joint, or pooling near the basement floor. If you notice any of these signs, it is worth scheduling a professional inspection.

What’s the best time of year to waterproof my basement?2025-07-09T00:31:25-04:00

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?2025-07-09T00:29:38-04:00

Yes! City Wide Group offers flexible financing options to make affordable waterproofing services accessible to homeowners throughout Ontario.

How much does basement waterproofing cost in Ontario?2025-07-09T00:31:50-04:00

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.

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.

    Wherever you are in the GTA or surrounding regions, there’s likely a City Wide Group crew nearby. Use the links below to explore how we approach waterproofing and underpinning in your area and what makes each region’s foundation challenges unique.

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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