The 9 Best Basement Waterproofing Companies in Toronto [2026]

  • Last updated: January 10, 2026
Best Basement Waterproofing Companies in Toronto

We conduct thorough testing and research on all the services that we review. We are based in Toronto and here is why you can rely on our reviews.

Seeking top-notch basement waterproofing in Toronto? We have expertly curated a list of the city’s 9 best companies, screening for quality, customer reviews, experience, and market tenure. Protect your property from water damage and invest smartly with our well-researched guide to the finest waterproofing services in town.

For other home improvement services, check out our list of the best general contractors or the best painters in Toronto.

Summary

What is the cost of Basement Waterproofing in Toronto?

The cost of waterproofing an average basement in Toronto ranges from $3,500 to $18,000. Exterior waterproofing, which typically involves excavating the foundation walls and applying a waterproof membrane, are far more costly than interior waterproofing methods such as injection and drainage systems.

Let’s dive into the details of basement waterproofing costs in Toronto:

Service Description Average Cost Range (Toronto)
Interior Waterproofing Drainage systems & coatings on interior basement walls $75 – $120 per linear foot
Exterior Waterproofing Excavating foundation & applying waterproof membrane on exterior $100 – $250 per linear foot
Foundation Repair Fixing cracks, settling, bowing walls, or replacing damaged concrete $3,500 – $7,500
Window Well Installation Installing wells around windows for light, keeping out water & debris $500 – $1,500 per window well
Sump Pump Installation Pumping water out of basement using sump pit $1,500 – $3,500
Battery Backup Pump Backup system to pump water during power outages $1,000 – $2,500
French Drain Installation Drainage system around foundation to redirect water $30 – $50 per linear foot
Weeping Tile Installation Porous pipe around foundation to collect & drain water $1,500 – $3,500

The cost of waterproofing services in Toronto varies based on factors such as the area size, chosen method, foundation condition, and contractor expertise. To find the best option, obtain quotes from reputable contractors and compare prices and services. Remember, the lowest quote may not always guarantee the best outcome; consider both quality and expertise when making your decision.

How We Choose The Best Waterproofing Companies

At Toronto Blogs Verified, we’re committed to helping you find the best waterproofing companies in Toronto. Here’s how we choose them:

  • Research and Verification: We conduct thorough research, analyzing online reviews, testimonials, and customer feedback to gauge a company’s reputation.
  • Licensing and Certification: We check if the companies hold the necessary licenses and certifications to ensure they meet industry standards.
  • Experience and Expertise: We assess a company’s years in business, services offered, and specialization to determine their expertise.
  • Quality of Workmanship: We review past projects, posted on their websites and social media, Google reviews on their websites to evaluate successful solutions and work quality.
  • Customer Satisfaction: We consider response time, communication, and customer feedback to prioritize satisfaction.

Our streamlined process ensures we recommend reputable and reliable waterproofing companies in Toronto, helping you protect your home effectively.

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The Best Waterproofing Companies in Toronto

Now that you know the average cost of waterproofing services in Toronto, let’s take a look at some of the best companies that provide these services.

1. Aquatech Waterproofing

5.0

Accreditations

Why Toronto Blogs Experts Recommend Aquatech Waterproofing

With over 25 years of experience, Aquatech Waterproofing is the seasoned leader in basement waterproofing in Toronto and the GTA. We wholeheartedly recommend this company for several compelling reasons. #1 factor is their reputation – we were highly impressed by its excellent customer’s reviews: they have the most online reviews and the best score – 5 out of 5.

#2 – Pricing! We spoke to several of Aquatech’s customers, they mentioned that Aquatech Waterproofing offers competitive rates and can match pricing. Customers also love that Aquatech provides a lifetime transferable warranty, ensuring that their investment remains protected for years to come.

Another factor is Aquatech’s efficiency. They can initiate projects within a remarkably short timeframe of just 4-5 days upon receiving locates and essential information detailing the locations of underground utilities and infrastructure.

Category Details
Company Aquatech Waterproofing
Recommended For Exterior Waterproofing
Pricing Per foot: starting at $69; Per project: starting at $3000
Warranty Offered Lifetime warranty
Experience 25+ years of experience
Service Area Serves Toronto and the GTA
Services Offered Backwater Valve Installation, Interior Waterproofing, Exterior Waterproofing, Basement Underpinning/Benching, Weeping Tile Installation, Window Well Installation, French Drain Repair, Sump Pump Installation, Battery Backup Pump, Foundation Repair
Local Office Address 20 Hyde Ave, Toronto, ON M6M 1J3
Contact Number (416) 300-2191
Website aquatechwaterproofing.ca

Local Office In Toronto

Business Information:

20 Hyde Ave, Toronto, ON M6M 1J3
(416) 300-2191
aquatechwaterproofing.ca

Customer Review Highlight:

“We had a leak in our basement and urgently needed a waterproofing company. We are very satisfied with the work they did over the last two days. They were very careful not to damage the grass, protect the windows and the A/C of our neighbour, clean the site after work. I strongly recommend Eugene and his crew. Well done!”

Pros

  • They have the most online reviews and the best score – 5 out of 5
  • They have competitive rates and can match pricing
  • They provide a lifetime transferable warranty
  • Can initiate projects within a remarkably short timeframe of just 4-5 days upon receiving locates.

Cons

  • Aquatech's services are currently only available in the Greater Toronto Area, which may be limiting for homeowners outside of that region.

2. Direct Waterproofing

Direct Waterproofing

Why Toronto Blogs Experts Recommend Direct Waterproofing

We’ve gathered some information about Direct Waterproofing by contacting them, and we’re giving it a thumbs-up. After checking them out, here’s what we found: First, they’ve got insurance and bonding, which means you can trust them. Plus, they’re right here in Toronto, with trucks that cover the GTA. 

They’ve been in business for over 25 years, so they really know their stuff when it comes to fixing waterproofing problems, inside and outside your home.

What’s great is they’re flexible with how you can pay, and they’re clear about their prices. You won’t get any surprises with them – and that’s a good thing!

Category Details
Company Direct Waterproofing
Recommended For Window Well Installation
Pricing Per foot: starting at $65; Per project: starting at $15,000 for waterproofing basement
Warranty Offered 25 years of warranty
Experience 25 years of experience
Service Area Serves Toronto and the GTA
Services Offered Backwater Valve Installation, Interior Waterproofing, Exterior Waterproofing, Basement Lowering, Emergency Waterproofing, Weeping Tile Installation, Window Well Installation, French Drain Repair, Sump Pump Installation, Battery Backup Pump, Backflow Preventors, Drain Snaking and Cleaning, Drain Repair, Basement Leak Repair, Crawl Space Encapsulation, Drain Pipe Installation Toronto, Foundation Repair
Local Office Address 4 Faversham Crescent, Toronto, ON M9C 3X4
Contact Number (416) 454-7575
Website directwaterproofing.ca

Business Information:

4 Faversham Crescent, Toronto, ON M9C 3X4
(416) 454-7575
directwaterproofing.ca

Customer Review Highlight:

“Terry and team did a fantastic job with my interior waterproofing. I would highly recommend. Terry is smart, professional, knowledgable and responsive. His team is friendly, worked hard and very professional. Having our basement waterproofed was far easier than we ever thought it would be! Now we have peace of mind and Terry has stated that he is only a phone call away if needed. So the service does not stop when the job ends. Thanks Terry and Crew!”

Pros

  • They've got insurance and bonding
  • Trucks that cover the GTA
  • In business for over 25 years
  • They're flexible with how you can pay

Cons

  • Their customer expressed dissatisfaction due to punctuality issues.

3. Royal Work

Royal Work Basement Waterproofing

Why Toronto Blogs Experts Recommend Royal Work Corp

We’ve had a chance to chat with their team members about their projects and what they are proud of, and let us share what we’ve learned firsthand. With over 25 years of experience, they really have expertise when it comes to basement underpinning and lowering.

What truly caught our attention is that they take a step-by-step approach to provide clear explanations about the necessary steps and outline the associated costs, ensuring you have a comprehensive understanding of the solution.  

But it doesn’t stop there – they offer free estimates and are available 24/7 for emergency services. Plus, they back their work with a solid warranty and a 100% satisfaction guarantee. That speaks volumes about their confidence in what they do!

Category Details
Company Royal Work
Recommended For Basement Underpinning/Lowering
Pricing Per foot: starting at $100
Warranty Offered 25 years of warranty
Experience 25 years of experience
Service Area Serves Toronto and the GTA
Services Offered Backwater Valve Installation, Interior Waterproofing, Exterior Waterproofing, Emergency Waterproofing, Basement Underpinning/Lowering, French Drain, Sump Pump Installation, Battery Backup Pump, Backflow Prevention, Drain Repair, Concrete Floor Installation
Local Office Address 230 Queens Quay W, Toronto, ON M5J 2X1
Contact Number (416) 837-1077
Website royalwork.ca

Business Information:

230 Queens Quay W, Toronto, ON M5J 2X1
(416) 837-1077
royalwork.ca

Customer Review Highlight:

“To do basement underpinning, I hired Royal Work Basement Waterproofing Toronto. They gave me a wonderful pricing, and there was no difference between the estimate and the final project cost. Anatoliy was approachable, courteous, and professional. Unlike other contractors, who take your money and don't show up for 3-4 months, if at all, they showed up every business day. I would strongly suggest them to anyone who is planning a home improvement job, and I will use them again if the opportunity arises.”

Pros

  • Over 25 years of experience
  • They outline the associated costs
  • They offer free estimates
  • Available 24/7 for emergency services
  • A solid warranty
  • A 100% satisfaction guarantee

Cons

  • No mention of specific pricing options on their website.

4. CD Basement Waterproofing

CD Basement Waterproofing

Why Toronto Blogs Experts Recommend CD Basement Waterproofing

Our colleague shared that he purchased a professional foundation package for new construction from CD Waterproofing and expressed satisfaction with the quality of their work, noting that not every waterproofing company was willing to undertake projects for new constructions. As a local family-owned business, they’ve got a strong commitment to quality and excellence.

With full insurance and certifications, CD Basement Waterproofing offers free estimates to get your project started. They focus on getting the job done on time and within your budget. Their A+ BBB rating reflects their dedication to top-notch service.

Plus, their customer told us that they provide flexible financing options, including 0% financing, and they stand by their work with a written guarantee. Contact them today to see how they can meet your specific needs!

Category Details
Company CD Waterproofing
Recommended For Drain Repair
Pricing Per foot: starting at $65 for interior waterproofing; $100 for exterior waterproofing
Warranty Offered Full warranty
Experience 50+ years of combined experience in Waterproofing, Underpinning, and Commercial Foundation Services in Toronto
Service Area Serves Toronto and the GTA
Services Offered Exterior Waterproofing, Weeping Tile Systems, Flow Protection, Foundation Repairs, Commercial Foundations, Commercial Waterproofing
Local Office Address Toronto, ON
Contact Number (647) 363-7815
Website cdwaterproofingtoronto.ca

Business Information:

Toronto, ON
(647) 363-7815
cdwaterproofingtoronto.ca

Customer Review Highlight:

“I had never used crystal drain before and after my experience with Rowan I will always request him. He was professional and knowledgeable. He went above and beyond to make sure everything I needed fixed was completed before he left. Overall was a really great experience.”

Pros

  • They offer free estimates
  • A+ BBB rating
  • They provide flexible financing options
  • They offer 0 % financing

Cons

  • The website claims to cover the Greater Toronto Area (GTA) as its service area; however, there are no specific cities listed
  • No mention of specific pricing options on their website.

5. The City Wide Group

City Wide Group

Why Toronto Blogs Experts Recommend The City Wide Group

We’ve talked to The City Wide Group’s customers for basement waterproofing in the Greater Toronto Area, and they all agree: this company is a great choice. Established in 1961, they have a strong reputation for always doing good work that their clients like.

This family-owned and operated business really cares about their clients, and they’ve won the prestigious Consumer’s Choice Award for being the best choice for 27 years in a row.

When you pick The City Wide Group, you get lots of help with basement waterproofing, particularly water damage restoration. They also give you good advice, tell you exactly how much things cost, and make sure you’re happy with the results!

Category Details
Company Citywide Group
Recommended For Water Damage Restoration
Pricing Wet basement waterproofing: 5% discount
Warranty Offered Lifetime warranty
Experience Family-owned waterproofing and underpinning experts since 1961
Service Area Serves Toronto and the GTA
Services Offered Basement Waterproofing, Interior Waterproofing, Exterior Waterproofing, Commercial Waterproofing, Foundation Cracks, Underpinning, Drains
Local Office Address 25 Hollinger Rd, East York, ON M4B 3N4
Contact Number (416) 283-5500
Website citywidegroup.com

Business Information:

25 Hollinger Rd, East York, ON M4B 3N4
(416) 283-5500
citywidegroup.com

Customer Review Highlight:

“Tony and his team are so great. Wonderful job! It was a lucky I could have them to work on the replacing of the old and poor weeping-tile system. Especially, Tony, very professional, experienced, detailed, and understanding with great arrangement. I appreciate it very much. I would highly recommend Tony and his team to my friends and neighbors.”

Pros

  • Family-owned and operated business
  • Won the prestigious Consumer's Choice Award
  • The best choice for 27 years in a row

Cons

  • Inconsistent Communication and Coordination, Poor Workmanship and Inadequate Installation, Lack of Accountability and Customer Service

6. Canada Waterproofers

Canada Waterproofers

Why Toronto Blogs Expert Recommend Canada Waterproofers

We’ve looked at the projects that were done by Canada Waterproofers, and they did their work really well! With over 27 years of experience working in the neighborhood, Canada Waterproofers has become the go-to team for keeping basements dry.

These guys are pros – they’ve got all the right licenses and insurance, and their team includes experts in all the types of waterproofing, especially interior waterproofing. 

What their customers love the most is they offer a 25-year transferable warranty and give you a 100% free estimate for everything they do. When you pick Canada Waterproofers, you can relax knowing your basement is in good hands!

Category Details
Company Canada Waterproofers
Recommended For Interior Waterproofing
Pricing Per foot: starting at $100 (with $250 off for new customers)
Warranty Offered 25 years of warranty
Experience 27+ years of experience
Service Area Serves Toronto and the GTA
Services Offered Backwater Valve Installation, Interior Waterproofing, Exterior Waterproofing, Basement Underpinning/Lowering, Sump Pump Installation, Sewer Backup & Snaking Services, French Drain Repairs, Concrete Floor Installation & Foundation Repair Services, Wet Basement Repair
Local Office Address 43 Hanna Ave Suite 425, Toronto, ON M6K 1X1
Contact Number (416) 333-5325
Website canadawaterproofers.com

Business Information:

43 Hanna Ave Suite 425, Toronto, ON M6K 1X1
(416) 333-5325
canadawaterproofers.com

Customer Review Highlight:

“I used these guys to install a backwater valve and to make some repairs to the sewer line. It was a pretty big job in my opinion but they made it look easy. The crew came in on time, installed all of the equipment with a very minimum of interruption to service and cleaned up the property like nothing ever happened. They even filled out all of the paperwork for a rebate with the city. They obviously know what they are doing and make it look easy. I recommended this company to my neighbours and they received the same level of service and satisfaction. Would not hesitate to use them again for any other job.”

Pros

  • Over 27 years of experience
  • All the right licenses and insurance
  • A 25-year transferable warranty
  • A 100% free estimate

Cons

  • If you live outside of the local community, Canada Waterproofers may not be able to provide services to your area.

7. RCC Waterproofing

RCC Waterproofing

Why Toronto Blogs Experts Recommend RCC Waterproofing

We’ve had a chat with one of RCC Waterproofing’s customers, and we’re giving them a big thumbs-up for interior waterproofing. 

What really seals the deal is RCC Waterproofing’s track record and their lifetime warranty for their work. They don’t do one-size-fits-all – they tailor their solutions to all sorts of foundation walls. Plus, they’re not looking to break the bank. They offer competitive pricing and have different ways to help with your budget.

So, if you want a basement that’s dry and free from leaks, RCC Waterproofing should be your first call. Reach out to them today and tackle your basement issues with confidence!

Category Details
Company RCC Waterproofing
Recommended For Interior Waterproofing
Pricing Per foot: starting at $50 (for both interior and exterior waterproofing); Per project: starting at $1000 for Basement Flooding & Water Damage, Basement Mould Removal Services, Basement Sewage Cleanup
Warranty Offered Lifetime warranty
Experience 100+ years of combined experience
Service Area Serves Toronto and the GTA
Services Offered Interior Waterproofing, Exterior Waterproofing, Basement Underpinning/Lowering, Sump Pump Installation, Crawl Space Encapsulation, Waterproofing Foundation Cracks, Foundation Structural Repair, Wet Basement Repair, Fixing Basement Leaks
Local Office Address 129 Lytton Blvd, Toronto, ON M4R 1L5
Contact Number (416) 747-1920
Website rccwaterproofing.com

Business Information:

129 Lytton Blvd, Toronto, ON M4R 1L5
(416) 747-1920
rccwaterproofing.com

Customer Review Highlight:

“Thank you so much RCC Waterproofing!! I should have used your company from the beginning. They are truly a group of knowledgeable, professional and friendly, caring people.I am very impressed with the results of my internal waterproofing. It looks amazing and more importantly I don’t have to worry about the water issues any longer. Again, thank you Mauro, Chris and everyone that was involved. I am deeply grateful.”

Pros

  • Lifetime warranty
  • Competitive pricing
  • Tailor their solutions to all sorts of foundation walls
  • Different ways to help with your budget

Cons

  • Several customers expressed dissatisfaction due to Inconsistent Communication and Customer Service

8. Dryshield Water Solutions

Dryshield Water Solutions

Why Toronto Blogs Experts Recommend Dryshield Water Solutions

Our experts have spoken with a guy who worked in DryShield Water Solutions, and he’s thrilled to recommend them as the leading waterproofing contractor in Toronto. These folks bring over 25 years of experience to the table, and they’ve got all the insurance and certifications to back it up. 

He mentioned that their customers really love that DryShield offers free, no-obligation consultations, and they’ve got this handy online estimation tool that’s super easy to use. But here’s what really sets DryShield apart: their personalized service. They’ve tackled everything from small-scale houses to big names like Pearson International Airport, Scotia Bank, and Wal-Mart. That’s some unmatched expertise right there!

Category Details
Company Dryshield Waterproofing
Recommended For Waterproofing Services
Pricing Contact for details
Warranty Offered Lifetime warranty
Experience 25+ years of experience
Service Area Serves Toronto and the GTA
Services Offered Backwater Valve Installation, Interior Waterproofing, Exterior Waterproofing, Window Well Installation, Sump Pump Installation, Basement Leak Repair, Wet Basement Repair, Crawl Space, Spray Waterproofing, Blindside Waterproofing, Waterproof Foundation, Foundation Crack Repair, Basement Crack Repair, Epoxy Crack Injection, Sewage Cleanup
Local Office Address 60 Millwick Dr, North York, ON M9L 1Y3
Contact Number (416) 361-3323
Website dryshield.ca

Business Information:

60 Millwick Dr, North York, ON M9L 1Y3
(416) 361-3323
dryshield.ca

Customer Review Highlight:

“I had DryShield come in to do some waterproofing work in my basement a couple months ago. I was super impressed! Everyone on the team was incredibly polite, hard working, and great to deal with. I had 3 companies in total come in to give me a quote, and these guys seems to be the most flexible in terms of finding a solution that worked for me, and offered a fair price for the work being done. What I like most is the guarantee that comes with the work! Would definitely recommend to friends and family!”

Pros

  • The leading waterproofing contractor in Toronto
  • Over 25 years of experience
  • Insurance and certifications
  • Free, no-obligation consultations
  • Handy online estimation tool
  • Tackled such projects as Pearson International Airport, Scotia Bank, and Wal-Mart

Cons

  • They've been in business for over 25 years, so they really know their stuff when it comes to fixing waterproofing problems, inside and outside your home.

9. Classic Waterproofing

Why Toronto Blogs Recommends Classic Waterproofing

Classic Waterproofing & Concrete is a leading waterproofing company in Toronto, offering over 25 years of experience in protecting homes and businesses from water damage. Specializing in basement waterproofing, foundation repair, and sump pump installations, their team of experts is dedicated to providing top-notch services that ensure the safety and durability of your property. 

Using the latest technology and high-quality materials, Classic Waterproofing & Concrete delivers reliable and long-lasting solutions tailored to meet the unique needs of each client. With a strong commitment to customer satisfaction and a stellar reputation for professionalism, they have become the go-to choice for waterproofing services in Toronto.

Category Details
Company Classic Waterproofing and Concrete
Recommended For Waterproofing Services
Pricing Contact for details
Warranty Offered Lifetime warranty
Experience 25+ years of experience
Service Area Serves Toronto and the GTA
Services Offered Sump Pump, Exterior Waterproofing, Interior Waterproofing, Basement Waterproofing, Crawlspace Encapsulation, Foundation Structural Repair, Foundation Cracks Repair
Local Office Address Richmond Hill, ON
Contact Number 647-490-0515
Email hello@classicwaterproofingandconcrete.ca
Website classicwaterproofingandconcrete.ca

Business Information:

Richmond Hill, ON
647-490-0515
hello@classicwaterproofingandconcrete.ca
classicwaterproofingandconcrete.ca

Customer Review Highlight:

"Classic Waterproofing & Concrete transformed our damp basement into a dry, livable space. Their team was professional, knowledgeable, and efficient. Highly recommend!"

Pros

  • The best choice for interior waterproofing and foundation repair
  • Over 25 years in the industry
  • Highly trained and vetted team
  • Flawless execution on every project

Cons

  • The company does not provide any details on pricing or financing options, which could make it difficult for customers to budget for their services.

Comparing Top Waterproofing Companies: Services, Pricing, and Warranties

To help you choose the right waterproofing company for your needs, we’ve compiled an overview of top companies, their services, pricing, and warranties. For an easier comparison, we’ve also included a detailed table below for quick reference.

Company Recommended For Pricing (Per Foot) Warranty Offered Experience
Aquatech Waterproofing Exterior Waterproofing Starting at $69 Lifetime warranty 25+ years
Direct Waterproofing Window Well Installation Starting at $65 25 years 25 years
Royal Work Basement Underpinning/Lowering Starting at $100 25 years 25 years
CD Basement Waterproofing Drain Repair Starting at $65 (interior) / $100 (exterior) Full warranty 50+ years of combined experience
City Wide Group Water Damage Restoration 5% discount on waterproofing Lifetime warranty Since 1961
Canada Waterproofers Interior Waterproofing Starting at $100 (with $250 off for new customers) 25 years 27+ years

FAQs About Waterproofing

Waterproofing is important because it helps to prevent moisture and water from seeping into your basement or crawl space. This can cause serious problems like foundation damage, mold growth, and wood rot.

There are several signs that you may need to waterproof your basement, such as:

  • Water stains on the walls or floor
  • A musty smell
  • Mold or mildew growth
  • Cracks in the foundation
  • Leaking in the basement during heavy rainfalls

If you are noticing any of these signs, it is important to contact a professional waterproofing contractor to assess the situation and determine the best course of action.

There are some basement waterproofing projects that you can do yourself, such as clearing gutters and downspouts and repairing cracks in the foundation. However, for most waterproofing projects, it is best to hire a professional contractor who has the experience and expertise to properly assess the situation and determine the best course of action.
When searching for the best waterproofing company, prioritize experience, reputation, and customer reviews. Look for licensing, insurance, and warranties. Obtain multiple quotes, ask about their methods, and assess their responsiveness and communication. A top company will provide tailored solutions, transparent pricing, and a proven track record of successful projects.

Final Thoughts

Protecting your basement from water damage is essential. If you spot any signs of water issues, reach out to one of the trusted contractors listed above. Their expertise will help keep your home safe and dry. Act now to prevent future damage!

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Annar Bormi

Annar Bormi is an accomplished entrepreneur and writer based in Toronto, Canada. Learn More About Annar Bormi

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