Basement Waterproofing Mississauga

Aquamaster Drain, Plumbing & Waterproofing Inc.

Got a Wet or Leaky Basement in Mississauga?

We fix basement leaks, cracks, and moisture problems with proven waterproofing solutions in Mississauga built to last.

Aquamaster Basement Waterproofing
Mini-excavator digging a foundation trench with dimple membrane against a brick home

Aquamaster - Basement Waterproofing Experts in Mississauga

A wet basement can lead to serious structural issues, mold growth, and costly repairs. At Aquamaster, we specialize in basement waterproofing in Mississauga, helping homeowners in Port Credit, Streetsville, Clarkson, Erin Mills, Meadowvale, Lorne Park, Cooksville, and nearby communities protect their properties from leaks, floods, and foundation damage. With over 16 years of experience and a proven track record, we provide reliable waterproofing services designed for Mississauga homes.

Licensed and Insured Professionals – Every job is completed by certified plumbers and waterproofing contractors who are experienced in wet basement repair near you.
Master Plumber License: 2026 005140 TM
Plumbing Contractor License: 2026 005145 TC

25 Year Warranty – We support our work with one of the strongest warranties in the industry, offering a full 25 year transferable guarantee.

Trusted Mississauga Basement Waterproofing Experts – With over 15 years of experience, we understand the common causes of basement leaks and repairs in this area.

Advanced Waterproofing Materials – We use durable, proven waterproofing products that help protect your home and improve the performance of your waterproofing system.

Whether you need exterior waterproofing or full basement protection, Aquamaster has the skill and knowledge to keep your home dry and secure.

Our Basement Waterproofing Services in Mississauga

Our services cater to all your basement waterproofing needs. We use tried-and-true techniques to keep water out of your basement. The measures we take to protect your basement walls, floors, and ceiling ensure that nothing catches you by surprise. We’ll help you protect your home, prevent leaks, and extend the life of your foundation. Finish your basement with confidence with the help of experienced waterproofing contractors at Aquamaster.

Exterior Basement Waterproofing Mississauga

Exterior waterproofing prevents water from entering your Mississauga basement by targeting it at the source. We excavate around the foundation, repair cracks, apply waterproof membranes, install weeping tiles or drainage boards, and backfill the area. This method protects your basement walls and foundation from ongoing moisture and structural issues.

Interior Basement Waterproofing Mississauga

Interior waterproofing addresses water problems originating from within your basement, such as leaky pipes or pipe bursts. This involves installing an efficient drainage system, a sump pump to pump water out of the basement, and sealing cracks in the walls and floors of your basement to keep water from seeping in. We also apply a waterproof sealant to the walls and floor for added reinforcement.

Basement Leak Repair Mississauga

Leaks are one of the most common issues homeowners encounter in their basements. Water damage can be costly and threaten the integrity of your foundation. We promptly address leaks by sealing cracks, repairing broken pipes, applying waterproof sealants, and installing drainage systems to waterproof your basement.

Window Well Installation Mississauga

It’s essential to ensure that window wells are installed properly and in accordance with regulations and codes. Window wells collect and drain water when it rains or snows. This is recommended for windows that are fully or partially below grade/ground level and serve as an emergency exit. For effective waterproofing, we excavate the area around the window and install a barrier and drainage system. Our window well installation services are guaranteed to improve drainage around the window, preventing water from seeping in.

Weeping Tile Installation Mississauga

This is one of the most requested Mississauga services because it effectively diverts water away from your foundation. It is also cost-effective. This waterproofing technique requires careful installation. We offer interior and exterior weeping tile installation. Beginning with the excavation, we dig a trench around the perimeter of your foundation. Then we fill the trench with gravel so that the weeping tiles can be placed on it and install perforated pipes with a sloping gradient so water flows away from the area of concern.

Sump Pump Installation and Repair Mississauga

Mississauga homes are no strangers to water buildup during spring melts and heavy rainfalls. Without a working sump pump, water can quickly pool and seep into your basement, causing structural damage and expensive repairs. A professionally installed sump pump redirects water away from your home before it becomes a problem, keeping your basement dry and protected.

Need Help With a Wet Basement in Mississauga?

There is every reason to have your basement waterproofing handled by Aquamaster Plumbing. We’ve stayed true to our values and mission as a company to provide outstanding services you can count on. The thousands of happy customers we’ve had over the years are a testament to the quality of our work. We are highly rated because we pay attention to detail and use quality products. Our services are affordable and available 24/7 for emergency waterproofing and plumbing needs. Get your free on-site service estimate to learn the cost of waterproofing your basement.Unparalleled quality service, 25 years warranty, all available today with 10% off. Contact us today!

Foundation Repair Services

The integrity of your home’s foundation can become compromised by poor construction, water damage caused by inadequate waterproofing, or other environmental issues. Sometimes, the settling or shifting of the foundation or ground occurs and must be addressed as soon as possible. Our goal is to provide reliable foundation waterproofing services to Mississauga homeowners using industry-approved methods. Our foundation waterproofing services Include: crack injection using epoxy or polyurethane,  carbon fiber strap reinforcement for bowed walls, helical or push pier installation for settling foundations, wall bracing and stabilization, concrete leveling, and slab lifting, repointing and parging repairs. Discover more foundation repairs in Mississauga we offer:

Basement Underpinning Mississauga

A key technique in waterproofing is underpinning because it addresses structural issues like cracks in your foundation. This reinforces your foundation, corrects structural issues, and can also be used to create more space. Basement underpinning also increases your home’s load capacity, which is helpful if you plan to add a second story.

Bench Footing Mississauga

If you’re looking to increase basement height but need a more cost-effective option than underpinning, bench footing in Mississauga might be the right choice. This technique involves constructing a concrete bench or ledge inside the basement along the perimeter walls, allowing the floor to be lowered without disturbing the existing foundation.While it does reduce some floor space, bench footing provides solid structural support and is a smart alternative for homes with unstable soil conditions or limited budgets where full underpinning isn’t ideal.

Basement Wall Crack Repair Mississauga

Cracks in your basement walls are more than cosmetic—they’re a sign that your foundation may be shifting or that water is finding its way in. Left untreated, these cracks can lead to moisture problems, mold, and costly repairs down the line. Our basement wall crack repair services in Mississauga offer permanent protection against leaks and long-term damage. We use high-grade epoxy and polyurethane injections to seal interior cracks and stop water seepage. For more severe structural issues, we reinforce the affected areas with carbon fiber straps and other advanced techniques to ensure lasting stability.

Aquamaster Basement Waterproofing Process

Free Basement Inspection

We start with a thorough inspection of your basement to find where water is getting in, checking for cracks, leaks, and drainage issues. Our team explains what we find so you know exactly what needs fixing.

Detailed Project Agreement

After the basement inspection, we will send you a clear agreement outlining the recommended basement waterproofing plan, timeline, and costs. We answer your questions upfront so you know what to expect before we start waterproofing your basement.

Basement Waterproofing

Once approved, we repair cracks, install waterproof membranes, replace or install weeping tile drainage, and backfill carefully. We test everything to ensure your basement stays dry, then leave your property clean — all backed by our 25-year transferable warranty.

Our Featured Basement Waterproofing Projects in Mississauga

Our team is capable of tackling any wet basement issue. We’re proud to showcase some of the Mississauga waterproofing projects we’ve completed over the years. With each one, we investigated the cause of the problem and determined how best to resolve it. The photos below prove that nothing is beyond our scope of expertise. No two basements are the same, so we don’t provide cookie-cutter solutions. Each project is unique.

Only 5-Star Reviews from
More Than 100 Happy Customers in Mississauga

Aquamaster Mississauga fixed a persistent humidity problem in the basement that had been affecting the space for years. Even without visible leaks, the air always felt heavy and damp after heavy rain. Serhii inspected everything and explained that moisture was gradually entering through older sections of the foundation. Maksym and the crew installed an interior drainage system with a sump pump and vapor barrier to properly control the issue. The work was completed efficiently, and everything was left clean. Since then, the basement has stayed dry and much more comfortable.
lena
02:26 08 Jun 26
Mike and Chris from Aquamaster Basement Waterproofing provided a customized interior waterproofing solution tailored specifically to our home’s foundation. A vapor barrier was installed to reduce humidity and prevent condensation on the basement walls. The drainage system works perfectly with the sump pump basin. The project was completed on schedule and the workmanship was excellent. We are extremely satisfied with the results.
Ильяс Вализада
05:12 15 Mar 26
We had a crack in our foundation wall. Contacted Aquamaster Basement Waterproofing Mississauga. They came tight away, fixed foundation crack. They explained step by step their project and left the house clean. Very satisfied with this company
Lillian
16:12 04 Mar 26
Mike and his crew were fantastic. Mike showed up near the end of the day on Monday. Quickly sent me the estimate and after a quick review between some other estimates, we selected them and we were not disappointed. We needed locates done and he notified me on Friday of that same we that they were completed and that they were going to be at the property on Saturday. The crew did an amazing job. Highly recommend.
Nicole L
19:38 01 Mar 26
Mike responded quickly to our request online for an estimate. He arrived on time, assessed the situation and found the problem in a few minutes. Quick fix and he stopped a significant flow of water into our basement that would have caused further damage if it continued. Didn't try and upsell us on any additional work and didn't accept payment for the fix. We will definitely use Aquamaster again for any waterproofing needs.
Vasan Thurairajah
20:49 27 Feb 26
Nikita and Julia took the time to explain why our basement kept getting damp and suggested a long-term solution. They repaired the cracks, installed extra waterproofing, and cleaned up everything perfectly afterward.
Akim Shevchenko (waomi)
01:33 19 Nov 25
Alex and Sarah were wonderful! They helped us understand why our basement kept flooding and proposed a lasting solution. Their team installed a sump pump, drainage tiles, and waterproofed the foundation. Everything was done neatly and on time. The results have exceeded our expectations. I wouldn’t hesitate to recommend Aquamaster to family and friends.
егор черевока
06:27 12 Nov 25
Mike and James from Aquamaster Waterproofing were exceptional. They worked around our busy schedule and made sure everything was done correctly. They fixed a leaky corner in our basement, sealed the foundation, and installed a sump pump system. The crew was polite, efficient, and extremely professional. Aquamaster really stands out for their quality of work and attention to detail. Five stars well earned.
Макар Юферов
02:40 11 Nov 25
Sarah from Aquamaster handled our waterproofing project with so much care and professionalism. She coordinated everything, from the inspection to the cleanup, flawlessly. Kevin led the crew and made sure the work was done to perfection. They sealed a large foundation crack that had been letting in water for years. Now our basement is completely dry, and we finally have peace of mind. I can’t thank the team enough for their excellent service.
Илья Бойчук
04:37 10 Nov 25
Aquamaster Waterproofing came to our rescue after our basement flooded twice in one month. Alex and John handled the inspection, explaining every possible cause and giving us honest recommendations. The crew arrived two days later and worked non-stop until everything was done. They installed an interior drainage system and sealed the foundation. Now the basement is bone dry, even after days of heavy rain. Exceptional service and great communication from start to finish.
матвей
17:10 09 Nov 25
Aquamaster Waterproofing absolutely deserves five stars. John and Sarah came out to assess our leaky basement and quickly identified the issue with our drainage system. They replaced our sump pump and installed new weeping tiles outside the foundation. The attention to detail and level of communication throughout the project were top-notch. Since the repair, not a single drop of water has entered our basement. I’m so relieved to finally have peace of mind during heavy rainfalls.
Артём Афанасьев
05:08 07 Nov 25
Maria handled our calls with patience, and Chris did a thorough inspection. The waterproofing crew fixed our leaking wall quickly. The whole process was smooth and stress-free. Five stars without hesitation.
Renat
03:29 06 Nov 25
I had a great experience with Aquamaster. They installed a sump pump quickly and cleaned everything up after. Excellent service!
Diana Suraieva
23:11 28 Oct 25
Aquamaster is hands down the best waterproofing company I’ve dealt with. They installed new drains and sealed cracks in my basement. The workers were kind and professional, and the results are amazing.
Sofiia Dolynka
01:14 29 Sep 25
Professional, reliable, and skilled—that’s how I would describe Aquamaster. They waterproofed my basement and explained everything clearly. The workers were respectful of my home and did an excellent job.
Diana Pavliska
03:29 28 Sep 25
Aquamaster really impressed me. They were on time, professional, and very detail-oriented. The workers protected my floors, cleaned up every day, and kept me updated on their progress. The final result exceeded my expectations. Five stars!
Олександра Канівець
05:00 30 Aug 25
My experience with Aquamaster was outstanding. They handled my basement leak problem with professionalism and care. The workers—Chris and Alex—were knowledgeable and very friendly. They left everything neat and tidy, and I couldn’t be happier.
Ірина
04:44 30 Aug 25
We had a complete exterior waterproofing done on one side of our house. Yuriy and Andrei worked for three straight days and didn’t cut corners. Everything was finished neatly and on time. Super impressed with their work ethic.
Noway
00:03 18 Aug 25
We had heavy flooding in the basement and called Aquamaster in a panic. Roman and Yuriy came the next morning and recommended a full interior waterproofing system. They worked fast and were respectful of our living space. Now, even with major rain, our basement is completely dry.
CoolBeats
06:34 16 Aug 25
We hired Aquamaster for a sump pump installation, and it was the best decision. Yuriy and Mark showed up on time, were extremely respectful of our space, and took the time to explain how the system works. Since the install, our basement has remained dry through multiple heavy rains. Couldn’t be happier!
Valeriia Ulianova
05:49 09 Aug 25
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Why Choose Aquamaster Basement Waterproofing?

25-Year Warranty
25-Year
Warranty

We mean it when we say your satisfaction is our top concern. It’s essential to us that we offer long-lasting waterproofing to keep your Mississauga basement protected from moisture damage. We’re so confident in our ability to provide sound waterproofing that we offer a 25-year transferable warranty on materials and labour. This means that if you sell your home, the warranty can be transferred, protecting the home.

Fully Licensed and Insured
Licensed and Insured Professionals

All the professionals on our team are fully licensed and insured. This gives you the assurance that you’re working with the right contractors, and that all work completed is in compliance with safety standards and local building codes.

Trusted Since 2009
Serving Homeowners Since 2009

We continue to build on our knowledge and experience so we’re able to resolve a wide range of issues and know how to adapt to different challenges. In the 15+ years of providing quality waterproofing in Mississauga and beyond, we’ve encountered many complex issues and addressed each one with durable solutions.

Upfront Pricing & First-Time Customer Discounts
Affordable Basement Waterproofing Solutions

We firmly believe that good waterproofing services in Mississauga shouldn’t cost you an arm and a leg. Our basement waterproofing services are affordable, and we find ways to ensure that you don’t spend any more money than you need to. We have a special offer for our first-time customers who receive 10% off their first service.

Emergency Services
Available 24/7

We know that leaks and plumbing issues can happen at any time. This is why we offer reliable plumbing and waterproofing services you can call on day or night. We have expert plumbers in Mississauga who are just a call away and available to address any emergency plumbing issues you have.

Top-Quality Materials
Quality Materials

Our team is dedicated to providing durable materials for best results. We know the difference that material quality makes. Trust us to always use waterproofing products that meet industry standards and provide long-lasting protection against water damage.

What you Get With Basement Waterproofing?

What are the Benefits of Basement Waterproofing in Mississauga?

Basement waterproofing helps protect the parts of your home most affected by ongoing leaks and groundwater pressure. By addressing foundation cracks, drainage problems, and water entry points, a properly designed system can:

  • Reduce water seepage and damage to basement walls, floors, and finished materials
  • Limit damp conditions that may contribute to mould, mildew, and musty odours
  • Protect the foundation from prolonged contact with groundwater
  • Make it safer to finish or use the basement for storage or living space
  • Help preserve the home’s condition and appeal to future buyers

The right waterproofing method depends on where the water is entering and what is causing it. A basement inspection can identify whether the home needs crack repair, improved drainage, a sump pump, or an interior or exterior waterproofing system.

Crew compacting soil beside an orange dimple membrane on a brick home foundation
Warning Signs of Basement Leaks

Signs That You Need Basement Waterproofing Services In Mississauga

Basement water problems are often easier to address when you catch the warning signs early. If you notice any of the following conditions, an inspection can help determine whether moisture is entering through the foundation, floor, or window area.

AquaMaster crew working in a shored foundation trench beside a brick house

Water Pooling on the Basement Floor

Puddles or standing water after heavy rain often indicate an active entry point. Note where the water first appears, as this can help a waterproofing contractor trace the source.

Water Coming Up Through the Basement Floor

Water rising through floor cracks or appearing around the wall-floor joint may be caused by pressure beneath the foundation. The problem may become more noticeable during heavy rain or spring thaw.

Wet Basement Walls or Floors

Dark patches, damp concrete, peeling finishes, or floors that remain wet are common signs of ongoing moisture. Even without visible puddles, repeated dampness should be investigated.

Leaking Basement Windows or Window Wells

Water stains below a basement window, dampness around the frame, or water collecting inside a window well may indicate poor drainage, failed sealing, or an uncovered well.

High Humidity or Musty Odours

Persistent humidity, a musty smell, or recurring condensation can signal excess basement moisture. These symptoms do not always mean waterproofing is required, so ventilation, HVAC, and plumbing sources should also be checked.

Efflorescence on Foundation Walls

White, powdery deposits on concrete or masonry are called efflorescence. They form when moisture moves through the wall and leaves mineral salts behind, making them a useful warning sign of water movement.

Basement Waterproofing Problems We See in Mississauga

 Basement water problems in Mississauga can develop gradually or appear after heavy rain and snowmelt. Finding the source early helps limit damage to finished walls, flooring, stored belongings, and the foundation itself.

Foundation Cracks and Seepage

Foundation cracks can allow groundwater to enter the basement, especially during wet weather. You may notice damp lines, water stains, peeling paint, or active dripping along a wall. The right repair depends on the crack’s size, location, and whether water pressure is building outside the foundation.

Water Around Basement Windows

Water may collect in a window well when the drain is blocked, missing, or poorly connected. Cracked window frames and incorrect grading can also direct water toward the opening. Prompt repairs can prevent moisture from damaging drywall, insulation, flooring, and other finished areas around the window.

Aging or Blocked Weeping Tile

Older weeping tile can become clogged with soil, roots, or sediment. Clay sections may also crack or shift over time. When the system cannot move water away from the foundation, pressure increases against basement walls and floors, raising the risk of seepage, dampness, and recurring leaks.

Poor Drainage Around the Foundation

Low spots, compacted soil, short downspouts, and grading that slopes toward the house can leave water beside the foundation. This increases pressure on foundation walls and may overwhelm the drainage system. Improving surface drainage is often an important part of a lasting basement waterproofing repair.

Interior or Exterior Basement Waterproofing for Mississauga Homeowners

Exterior waterproofing is designed to stop groundwater before it enters your foundation, while interior waterproofing manages water from inside the basement and directs it toward a drainage or sump system. For Mississauga homeowners, the right method depends on where the leak begins, whether the outside foundation is accessible, and the condition of the foundation and existing drainage.

ComparisonInterior WaterproofingExterior Waterproofing
How it worksCollects and redirects water using drainage membranes, weeping tile, and a sump pumpExcavates around the foundation and applies a waterproof membrane
Best suited forWall-floor joint leaks, hydrostatic pressure, or limited exterior accessFoundation wall leaks, exterior cracks, and ongoing water penetration
DisruptionWork takes place inside the basementRequires outdoor excavation and may disturb landscaping
Published starting costAbout $65 per linear footAbout $85 per linear foot
Main benefitLower cost and easier accessStops water from reaching the interior foundation wall
Key considerationManages water rather than blocking it outsideAccess, excavation depth, and site conditions can affect the work

An exterior system may be the stronger choice when water is penetrating accessible foundation walls and the surrounding area can be excavated safely. Interior waterproofing may be more practical when exterior access is restricted or water needs to be controlled below the basement floor. A professional inspection should identify the entry point and assess the foundation before either method is recommended. In some homes, combining targeted exterior repairs with interior drainage may provide broader protection.

Basement Water Leak Prevention

The best reason to waterproof your basement in Mississauga is to prevent basement water leaks before they happen. Oftentimes, clients seek basement leak repair, while preventing the leaks is a more cost-effective approach long-term.

There are more signs of potential structural damage to the foundation of your property. Our team at Aquamaster Basement Waterproofing Mississauga has been waterproofing basements since 2009. We invest heavily in training our teams, sourcing the best basement waterproofing materials, all to deliver the highest quality basement waterproofing services for our clients.

Don’t wait, get our basement waterproofers on the phone today!

Interior basement waterproofing with Delta-MS dimple membrane and perimeter drain trench

Frequently Asked Questions

Basement waterproofing in Mississauga costs about $65 per linear foot for interior work and $85 per linear foot for exterior work. Smaller basement leak repairs typically range from $500 to $1,500 CAD. The final price depends on excavation, foundation cracks, weeping tile work, waterproofing membranes, and the size of the repair area. Read more about basement waterproofing cost.

Neither method is always better; the right choice depends on the source and severity of the leak. Exterior waterproofing blocks water before it enters the foundation but requires excavation. Interior drainage is often less disruptive and can manage hydrostatic pressure effectively, especially when exterior access is limited.

You can identify the source by noting exactly when and where the water appears. Leaks after rain may point to foundation cracks, poor grading, window wells, or downspouts, while water at the wall-floor joint may signal hydrostatic pressure. A waterproofing inspection can confirm the cause before repairs begin.

Yes, reputable basement waterproofing contractors usually provide a warranty, but the coverage and term vary by company and system. Some warranties cover specific materials or repaired areas, while others may be transferable to a future homeowner. Read the exclusions, maintenance requirements, and transfer conditions before signing the contract.

Yes, many leaking basements can be waterproofed from the inside. Interior systems may include a drainage membrane, perimeter drain, crack repair, and sump pump to collect and redirect water. This approach is useful when exterior excavation is impractical, although it manages incoming water rather than stopping it outside.

No, a basement leak does not automatically mean the weeping tile must be replaced. The cause could be a wall crack, clogged window-well drain, poor grading, plumbing issue, or failed sump pump. Replacement may be needed if inspection shows the existing drain is blocked, damaged, collapsed, or no longer draining properly.

Neighbourhoods We Serve in Mississauga

It’s our goal to provide superior waterproofing to give your home complete protection against leaks and water damage. We serve the Mississauga area, ensuring that we provide professional waterproofing services that homeowners deserve. We use techniques and equipment that are highly effective and provide long-lasting protection.

What Postal Codes We Serve in Mississauga

L4T, L4V, L4W, L4X, L4Y, L4Z, L5A, L5B, L5C, L5E, L5G, L5H, L5J, L5K, L5L, L5M, L5N, L5R, L5S, L5T, L5V, L5W

Our Address in Mississauga: 1247 Cloverbrae Crescent, Mississauga, ON L5H 2Z6

We Provide Basement Waterproofing Services Near Mississauga