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Basement Wateproofing FAQ

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FAQ

Do I Need Basement Waterproofing If My Basement Isn’t Leaking Yet?
Yes. Waterproofing is a preventative measure. Even if you don’t see water, small cracks or poor drainage can let moisture in over time, leading to mold, damage, and costly repairs. Addressing issues before leaks appear saves money and protects your home’s foundation.
Look for damp spots on walls or floors, peeling paint, musty odors, efflorescence (white chalky residue), visible cracks, or increased humidity. These are early signs of water intrusion that should be addressed before they worsen.

  • Interior waterproofing manages water that has already entered, using drainage systems and sump pumps.

  • Exterior waterproofing prevents water from reaching the foundation walls by sealing them from the outside.
    Exterior solutions are more permanent, while interior systems are less invasive and often less costly.

With professional installation, exterior waterproofing can last 25–50 years, often as long as the foundation itself. Interior systems usually last 10–20 years, depending on the quality of materials and whether the sump pump is properly maintained.

  • Interior waterproofing: $80–$240 per linear foot

  • Exterior waterproofing: $150–$350 per linear foot
    The final cost depends on the size of your basement, the foundation type, and the extent of water damage.

Yes, interior waterproofing can be completed year-round. Exterior waterproofing may be limited in very cold conditions if the ground is frozen, but in most cases, work can still be carried out with the right equipment.
MT Drains provides transferable warranties, typically ranging from 20 years to lifetime coverage, depending on the service. This ensures long-term peace of mind and added value if you sell your home.
Yes. A dry, structurally sound basement is a major selling point. Buyers are more confident purchasing a home with a waterproofing warranty in place, often leading to faster sales and higher resale value.
Yes, but it depends on the situation. Interior drainage systems can often be installed with minimal disruption. In some cases, sections of drywall or flooring may need to be removed to access foundation walls or install sump pumps.
Not always. A sump pump is essential if your basement is prone to groundwater seepage or flooding. However, homes with proper exterior waterproofing and drainage may not need one. Our team will recommend the right setup after inspection.
Yes. Mold and mildew thrive in damp conditions. By eliminating water intrusion and controlling humidity, waterproofing protects your basement air quality and helps prevent health issues.
Exterior waterproofing often involves excavation, which may temporarily affect landscaping, patios, or driveways. At MT Drains, we carefully restore disturbed areas once the work is complete.
The right solution depends on the source of the problem. Surface water and foundation cracks usually require exterior waterproofing, while groundwater pressure or minor seepage is often addressed with interior systems. A professional inspection will confirm which option is best.
Most insurance policies don’t cover seepage or water intrusion caused by foundation issues. Waterproofing is considered a preventative measure and is the homeowner’s responsibility.
Yes. A properly designed system, especially when paired with sump pumps and weeping tile installation, helps prevent flooding during heavy rain or snowmelt.
Interior waterproofing systems are usually ready for use within 24–48 hours. Exterior waterproofing may require longer drying and curing times, depending on the materials used.

Exterior systems require little upkeep once installed. For interior systems, you should:

  • Test sump pumps regularly

  • Keep discharge lines clear

  • Inspect basement walls annually
    This ensures your waterproofing continues to work effectively for years.

Leaky basement being waterproofed in Toronto
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MT Drains & Plumbing Reviews

Mykola I.Mykola I. ★★★★★ As a General Contractor, I highly recommend MT Drains & Plumbing. I was dealing with a complex sewer line issue for a project in Richmond Hill. Slava was fantastic—he arrived on time and performed a very thorough inspection.​He is a true professional who knows his trade inside out. He offered a smart, practical solution to the problem without any hassle. It’s hard to find such reliable and skilled tradespeople these days. Highly recommend Slava for any plumbing or drain needs!"ilaw Z.ilaw Z. ★★★★★ Sid an excellent job and was very quickDarren A.Darren A. ★★★★★ Pavel was great to deal with. Very professional, knowledgeable and helpful.B AB A ★★★★★ Timely and professional service, very happy with the results.Vaidyanathan P.Vaidyanathan P. ★★★★★ Eddie and team did an excellent job from start to finish. Their attention to detail, professionalism, and commitment to quality workmanship were impressive. The project was completed on time, and they ensured the area was kept clean throughout. I’m very satisfied with the outcome and would highly recommend them for any bathroom renovation work.Brandon G.Brandon G. ★★★★★ Nisan BNisan B ★★★★★ Usor W.Usor W. ★★★★★ Amazing jobDomenic L.Domenic L. ★★★★★ Best service came within 1 hour and fixed up our drain issues .sibexpsibexp ★★★★★ Professional service, truly grateful for the assistance provided.John R.John R. ★★★★★ The work was done on time. The repairman was experienced and respectful.Jason S.Jason S. ★★★★★ Great service, Dan was really helpful and polite. He gave us detailed but easy to understand explanations of everything he was doing. Super quick too.Shirley G.Shirley G. ★★★★★ Our plumber was terrific. He was on time, extremely helpful and knowledgeable and friendly. He went about his task quickly and offered advice relative our problem. I would not hesitate to call them again. A1 company.Connie J.Connie J. ★★★★★ I had a leak in my bathroom that involved replacing old pipes and taps. I am very pleased with the timely and professional service.Leo C.Leo C. ★★★★★ Our hot water tank stopped working suddenly, and with a house full of kids, we needed a quick solution. MT Drains replaced it the very next day. The installation was clean and efficient, and they even removed the old tank for us. Their pricing was fair, and the team was polite and professional. Highly recommend their water heater services in Vaughan.js_loader