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Basement Waterproofing Company in Thornton

If water is showing up in your basement, it’s not something to ignore. Leaks rarely fix themselves—and they often return worse if the source isn’t addressed properly.MT Drains & Plumbing provides basement waterproofing in Thornton focused on one thing: finding where the water is coming from and fixing it the right way.No generic systems. No unnecessary work. Just clear answers and long-term solutions.

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Common Basement Water Issues We See in Thornton

Homeowners usually contact us after noticing:

  • Water pooling along the basement floor

  • Damp or stained foundation walls

  • Leaks that appear after heavy rain or snowmelt

  • Moisture around window wells or foundation cracks

  • Musty odours that don’t go away

If water has found a path once, it will usually find it again. The key is stopping it at the source.
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25 Year Warranty

Licenced & Insured Waterproofers

24/7 Availability

Offering Waterproofing Services Since 1991

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How We Approach Basement Waterproofing

Every job starts with diagnosis, not assumptions.
During your inspection, we determine:

  • Where water is actually entering the foundation

  • Whether the issue is isolated or part of a larger drainage problem

  • If an interior solution makes sense—or if exterior waterproofing is required

  • Whether cracks are structural or surface-level

This approach prevents overbuilding and ensures the repair matches the problem.
waterproof membrane installed in Etobicoke basement

We Can Handle All Your Waterproofing Needs

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Interior vs. Exterior Waterproofing — What You Need to Know

There’s no one-size-fits-all solution.

Interior Waterproofing

Often recommended when:

  • Water enters at the wall-to-floor joint

  • Exterior excavation isn’t practical

  • Groundwater needs to be managed, not blocked

Interior systems collect and redirect water safely but don’t stop exterior moisture from reaching the foundation.

Exterior Waterproofing

Recommended when:

  • Water is penetrating through foundation walls

  • Exterior cracks are present

  • Long-term protection is the priority

Exterior waterproofing stops water before it enters the home, making it the most permanent option in many cases.
We explain why a solution is recommended—so you can make an informed decision.

Basement Crack Repair in Thornton

Foundation cracks are common in both older homes and newer builds. Even small cracks can become repeat leak points.
We repair basement cracks using proven methods such as:

  • High-pressure epoxy or urethane injection

  • Exterior membrane repairs

  • Full-length crack sealing when required

All repairs are performed by licensed technicians and backed by warranty.

Why Homeowners Choose MT Drains & Plumbing

  • Licensed and insured waterproofing specialists

  • Serving the GTA since 1991

  • Thousands of completed waterproofing and drainage projects

  • In-house crews — no subcontractors

  • Clear inspections and transparent pricing

  • Solutions designed to last, not just dry things temporarily

We focus on fixing the issue—not selling the biggest system.

Book a Basement Waterproofing Inspection in Thornton

If your basement is showing signs of water intrusion, the next step is understanding why it’s happening.
We provide honest assessments, practical solutions, and professional workmanship—without pressure.
Call Us Now At (905) 761-5551
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FAQ

Do I need interior or exterior waterproofing?
That depends on where the water is entering. An inspection is the only way to know.
Yes. We take steps to protect finished areas whenever possible.
When the source is addressed correctly, waterproofing is a long-term solution.
Only if groundwater management is part of the issue. We’ll explain when it’s necessary.
Coverage varies. We can help explain what’s typically covered and what isn’t.
Have more questions? See our full Basement Waterproofing FAQ page for detailed answers.
Leaky basement being waterproofed in Toronto

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A foul smell coming from your sump pump isn’t just unpleasant—it can point to a maintenance issue, a drainage problem, or even potential health risks. Here’s what causes that smell and what steps you should take to eliminate it.

Efflorescence Streaks on Basement Walls: Cosmetic Issue or Water Intrusion?

Efflorescence is a common issue in concrete and masonry basements. It shows up as white, powdery streaks or flakes on the wall surface. In many cases, it’s just a cosmetic concern—but it can also indicate ongoing moisture problems.

Here’s how to assess what you’re dealing with and when it’s time to act.

Speak With a Licensed Professional
Have a question about your situation? Our team will review the details and explain the right next step.
Contact Us
Call (647) 370-5325

MT Drains & Plumbing Reviews

Excellent
MT Drains & Plumbing4.8
Based on 203 reviews
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Ken C.
Quality service by an extremely professional team. Would highly recommend.
Alvin H.
We were referred to MT Drains & Plumbing by our plumber as the work that needed to be done to clear our catch basin needed special equipment. They were a pleasure to deal with because: 1. Their quote was clear and comprehensive 2. The response and turnaround time from query to quote was fast 3. Olga made it easy to book an appointment 4. The team dispatched to do the job were professional, did the work and did it in less time than quoted. Overall, a professional outfit that I would recommend.
rahul T.
Amazing service
Ken J.
Our upstairs toilet was not working properly. I called MT Drains & Plumbing and Rene came the same day. He checked out the toilet and found it was not working properly due to age and deterioration of the jets. I asked him if he could supply a replacement toilet. Rene ordered a new toilet and installed it first thing next morning. The new one is working better than the old one ever did. Rene was pleasant to deal with and knew what he was doing. We will use MT Drains in the future.
Marie S.
I recommend them highly as I will always use their services. Fast and efficient work. Very prompt and courteous. Congratulations!
vilius V.
Recommend! Very professional work , very clean, reasonable prices, work was done quick.
ryitmac09
MT Drains were great. Pavel is very knowledgeable and the crew were amazing. They were very dependable and never stopped working. Despite the job being difficult the crew worked through all the challenges and kept us informed along the way. We appreciated The brother’s hard work and commitment to getting the job done. A 25 year warranty on their work speaks to their commitment to a job well done.
Reuven M.
St.A's
Great customer service! The operator was friendly and professional. The serviceman was amazing! Thank you Rene. Not only was he clear and speedy with providing a quote but he came back and did a thorough job. Excellent service all around.
Kirk S.
Ofcourse my drain was clogged on a Friday after 5pm. Rene, from MT Drains, came to our rescue with a great attitude. He took about an hour and a half to clear our drain while giving us pointers as to what not to do. Thank you Rene! I recommend your services to any one who needs a good plumber.
Maurizio C.
Excellent service from start to finish. Rene the plumber arrived early, was professional, courteous, and quickly diagnosed the issue with our clogged pipes. He explained the process clearly and used the snake equipment efficiently to clear everything out without any mess or damage. What really stood out was his honesty, attention to detail, clenliness and his willingness to answer questions. The drains are now working perfectly, and the whole experience was stress-free. I would definitely recommend Rene and this company to anyone needing plumbing services and wouldn’t hesitate to call them again in the future.
Adam K.
Eddie was very professional and did a great job. Rene came back for another visit and he was exceptional. Highly recommend him to anyone.
Victoria B.
We had an amazing experience with Rene. Very detailed, helped us to address the questions and make a required installation. Thank you!
Frank S.
Eddy was knowledgeable and the service was professionally done in a short notice
Casper K.
Great same day service. Highly recommend.

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