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Waterproofing & Leaky Basement Toronto

Expert Foundation Repair & Basement Waterproofing Services in Toronto & the GTA 

If your basement shows signs of water damage, don’t wait! New Canadian Drain & Plumbing provides expert basement waterproofing solutions across Toronto and the GTA.

Our experienced team specializes in comprehensive basement waterproofing, ensuring your home stays dry and protected. Call us today for a free consultation!

Basement Waterproofing Services

  • Interior Waterproofing
  • Foundation Repair Services
  • Wet Basement Repair
  • Backwater Valve Installation
  • Sump Pump Installation
  • Sewer Backup and Snaking

The Importance of Basement Waterproofing

Basement waterproofing is essential for protecting your home’s structural integrity, preventing costly water damage, and ensuring a healthy living environment. Many homeowners underestimate the impact of water infiltration, but even minor leaks can lead to mold growth, weakened foundations, and property devaluation.

Why is Basement Waterproofing Crucial?

  1. Prevents Structural Damage
    • Foundation Cracks can expand over time due to continuous exposure to moisture. Waterproofing your basement strengthens your home’s foundation and prevents costly repairs.
    • Blindside Waterproofing is an advanced method used in construction where waterproofing materials are applied before the foundation is poured, providing an extra layer of protection.
  2. Reduces Health Risks
    • Moisture Control is key to preventing mold growth, which can cause respiratory issues, allergies, and other health hazards.
    • Mold and mildew thrive in damp environments, making interior waterproofing solutions vital for maintaining air quality inside your home.
  3. Protects Your Property & Belongings
    • A wet basement can damage flooring, furniture, stored valuables, and electronics.
    • Installing a comprehensive waterproofing package ensures your basement remains dry and usable for years to come.
  4. Prevents Plumbing & Drainage Issues
    • Sewer backup during heavy rainfall can flood your basement with contaminated water, causing serious damage.
    • Storm drains can overflow if not properly maintained, leading to water infiltration through foundation walls.
  5. Increases Property Value
    • Homes with foundation waterproofing and lifetime warranty guarantees on waterproofing solutions have higher resale value.
    • A dry, finished basement adds extra living space, making it a desirable feature for potential buyers.

Foundation Repair & Crack Sealing

Foundation cracks can weaken structural integrity and allow water infiltration, potentially leading to costly repairs. Addressing these issues promptly helps maintain a strong, dry, and secure foundation.

At New Canadian Drain & Plumbing, we provide comprehensive foundation repair solutions to reinforce your home and prevent future damage.

Waterproofing Materials and Techniques

Choosing the right waterproofing materials and techniques is crucial for effective moisture control and long-term basement protection. Our team at New Canadian Drain & Plumbing uses industry-leading solutions to keep your home safe and dry.

Common Waterproofing Methods

  1. Interior Basement Waterproofing
    Interior basement waterproofing is a highly effective way to manage and redirect water that has already entered the structure, preventing further damage and moisture buildup. This method is ideal for basements where exterior waterproofing is not feasible or too costly.
    Key Interior Waterproofing Solutions:

    • French Drain Installation: A weeping tile pipe system redirects water to a sump pump, preventing basement flooding.
    • Sump Pumps & Battery Backup: Essential for draining excess water and keeping basements dry during heavy rainfall or power outages.
    • Drainage Systems: Includes window well installation and interior drains to manage water flow.
    • Foundation Leakage Repairs: Uses structural crack repairs, tie rod sealing, and waterproof barriers to block moisture entry.
    • Crawlspace Encapsulation: Seals crawl spaces to prevent mold, dampness, and foundation issues.
    • Infrared Camera Inspections – Detects hidden leaks and moisture buildup for early intervention.
    • Underpinning Integration – Strengthens the foundation while incorporating waterproofing solutions.
  2. Foundation Crack Repair
  3. Crawlspace Waterproofing
    • Crawlspace Encapsulation: A vapor barrier system installed to prevent moisture buildup and mold growth in crawlspaces.
    • Cementitious Waterproofing: A cement-based waterproofing material applied to interior walls for added durability.
  4. Preventing Hydrostatic Pressure Issues
    • Hydrostatic pressure can cause water to push through basement walls and floors. Proper waterproofing solutions, such as interior drainage systems, prevent this pressure from causing leaks.

For a custom waterproofing solution tailored to your home, contact New Canadian Drain & Plumbing today!

Cost of Basement Waterproofing

The cost of basement waterproofing varies based on several factors, including the size of the basement, severity of water infiltration, and chosen waterproofing method.

Key Factors Affecting Cost:

  • Type of Waterproofing – Interior waterproofing (e.g., sump pump installation) is generally more affordable than exterior waterproofing (e.g., weeping tiles, window well installations).
  • Foundation Condition – Foundation cracks and foundation repair may increase costs if structural work is needed.
  • Drainage Systems – Adding a battery backup pump, backwater valve installation, or crawl space encapsulation may influence the final cost.
  • Basement Underpinning – If lowering or reinforcing the foundation, costs can be higher due to excavation and structural adjustments.

100% Guaranteed Satisfaction with Our Work!

Reviews from Our Customers

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Marco Caiafa profile picture
Marco Caiafa
9 October 2026
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Great service from Allan today. Clearly explained the required fix, completed it in short time, double-checked everything was functioning after. Also explained the charges clearly. Great work.
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Robin Ostow profile picture
Robin Ostow
9 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad was good and professional
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HV Painters profile picture
HV Painters
7 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad fantastic job
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Dana Winton profile picture
Dana Winton
1 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Volodymyr replaced a faulty faucet. Well done on a tricky job.
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Myat ZIN profile picture
Myat ZIN
30 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Very knowledgeable plumber Volodymyr and Narar did a great job at my workplace! You will not regret it and highly recommended.⭐️⭐️⭐️⭐️⭐️
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Shrawani Ghosh profile picture
Shrawani Ghosh
30 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad was professional and proficient in fixing the valve issue I had with the toilet, very helpful gentleman. Charges are too high but thats not the staff or company its Canada, so the service gets 5 star rating.
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saed 1 profile picture
saed 1
28 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
had a guy named zohair come in did my toilet repair nice and easy good guy and service
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Matthew Mahaffy profile picture
Matthew Mahaffy
25 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
I needed my main water shutoff replaced and the job had a lot of challenges and delays due to my city water valve and some other issues with the existing valve. The company was patient and when ready, BK completed the job professionally. He was very kind and courteous to our family while competing work.
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Amina Dan-Sule profile picture
Amina Dan-Sule
25 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad, was very polite, efficient and communicated excellently.
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Lisa Mai (unicornsalt) profile picture
Lisa Mai (unicornsalt)
25 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Very happy with the service and professionalism of Samad N today. He installed my new kitchen faucet and showed me how to operate it properly. He also took time to answer any questions I had. Very personable and I definitely recommend Samad for any plumbing work and will request him for future jobs. Thank you!
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Anna profile picture
Anna
23 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad was very friendly, and happily explained everything he was doing very thoroughly. He made sure to explain the warranty on all things that were done, and explained the final costs in detail. Was very impressed with how quickly they were able to come out and get the job done.
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Bernadette Li profile picture
Bernadette Li
23 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad Nikpay is very professional and efficient. He also explained as he worked. I will recommend him and New Canadian Plumbing to my friends.
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Carl Spidla profile picture
Carl Spidla
22 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Bk did great work!
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Gordon Kennedy profile picture
Gordon Kennedy
22 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Volodymyr did good job
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Mitchell Zornow profile picture
Mitchell Zornow
22 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Volodymyr came to the rescue this morning. One of toilets has a broken valve causing the toilet to run continuously. He arrived promptly when he said he would, was very respectful of our house and was in and out in less than hour. Problem fixed!!! Will definitely be calling New canadian drain & plumbing Ltd. Again in the future. Thank so much Volodymyr!
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Alicia Martin profile picture
Alicia Martin
21 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
BK was great! He came in the same day and gave us a quote and explained our options. Then we decided to go ahead with the work and he was fast, clean and efficient. Very knowledgeable and nice guy. Would use them again!
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Antonio Sposato profile picture
Antonio Sposato
20 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad did a great job friendly service excellent work
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Andy Krasowski profile picture
Andy Krasowski
18 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Samad did a wonderful job. Extremely happy with his fine work. He was a perfect gentleman. Would highly recommend him to all my friends!
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wendy shingler profile picture
wendy shingler
18 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
I have had trouble with my kitchen sink getting blocked. I have managed to clear it a few times but when home remedies no longer worked I called in New Canadian Drain and Plumbing Ltd Samad a very pleasant man came the next morning and was extremely helpful, he did an excellent job of replacing necessary parts and clearing the whole system. I highly recommend New Canadian Drain and Plumbing.
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Ryan Oliver profile picture
Ryan Oliver
16 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Very fast and efficient service. Thank you so much Samad! You were great!

Signs of Basement Water Problems

Early detection of basement leaks and foundation issues helps prevent costly repairs.

Common Signs of Water Damage:

  • Musty Smell & Mold Growth: Damp conditions encourage mildew and mold.
  • Water Seepage & Puddles: Pooling water near floor-wall joints indicates leaks.
  • Basement Cracks & Efflorescence: White, chalky residue on walls signals water intrusion.
  • Moisture Infusion & Wall Stains: Damp walls and peeling paint suggest trapped moisture.
  • Clogged Gutters & Poor Drainage: Overflowing gutters can lead to foundation water seepage.
  • Sump Pump Failures & Sewer Backups: Malfunctioning drainage systems can cause basement flooding.
Waterproofing Diagram

Locations of Operation

We proudly serve Toronto and the GTA, providing top-rated waterproofing and basement repair services.

  •   Toronto West
  •   Toronto East
  •   Etobicoke
  •   North York
  •   Scarborough
  •   Mississauga
  •   Brampton
  •   Oakville
  •   Ajax
  •   Pickering

Contact us for a free plumbing service estimate: