Wet Basement Waterproofing Ajax

Welcome to Aquamaster, your trusted partner for basement waterproofing in Ajax. Since 2009, we’ve been delivering a full spectrum of services, from interior and exterior waterproofing to basement flood repair, sump pump installation, and so much more! Get started today with 10% off for new customers!

Master Plumber License: T95-4200199
Plumbing Contractor License: T94-4200197

basement waterproofing services
Built to Last for Decades
basement waterproofing digging to foundation

Aquamaster: Basement Waterproofing Experts in Ajax

Aquamaster is a proud, full-service waterproofing and plumbing company in Ajax with over 15 years of experience.
We use our own licensed and experienced team, never passing work off to subcontractors. The people inspecting the problem are the same people completing the repair.
Our success and trusted reputation come from our transparency, devoted customer support, and honest communication. We take the time to explain repairs and estimates, as well as offer competitive pricing and first-time customer discounts.
When a wet basement or a plumbing issue interrupts your day, you need fast answers, repairs that last, and a company that cares more about your safety than the final paycheque. That company is Aquamaster.

Master Plumber License: T95-4200199

Plumbing Contractor License: T94-4200197

Lifetime Warranty for All Basement Waterproofing in Ajax

Waterproofing is a permanent solution, but it doesn’t stop the environment around your home from changing. Soil shifts, drainage patterns evolve, and hydrostatic pressure intensifies over time. That’s why we provide a lifetime warranty. Waterproofing is an investment in your home’s protection that lasts long after our team has finished.

Our Basement Waterproofing Services in Ajax

No two basement waterproofing projects in Ajax are the same. In some cases, foundation cracks can be easily repaired, in others, same-day emergency waterproofing is required. Often, our interior and exterior waterproofing services are combined with basement underpinning. It doesn’t matter what your project entails. If you are looking for “basement waterproofing near me” the highly trained and certified team at Aquamaster has the experience to get it done right!

Exterior Foundation Waterproofing

Does water pool around your foundation? Are you worried about structural damage? Exterior waterproofing stops water from reaching your foundation by rerouting it away from your home.

Interior Waterproofing Systems

Looking for a cost-effective way to reduce leaks and flooding in your basement? Interior waterproofing can fix wall cracks and leaks while managing water intrusion.

Sump Pump Installation

Sump pumps manage water seepage during heavy rain and snowmelt in Ajax. They safeguard foundations, reduce moisture, and lower mold risk. No more wet floors, dampness, or water-damaged belongings.

Weeping Tile Installation & Replacement

Damp basement walls? Water along your foundation? It may be time to install or replace weeping tiles. Weeping tiles redirect groundwater, stopping leaks, mold, and foundation deterioration.

Foundation Crack Repair Ajax

We use advanced waterproof membranes, sealants, and epoxy injections to repair wall cracks and floor cracks in your basement. This blocks water and moisture from seeping through.

Bench Footing Ajax

Increase your basement ceiling height and improve foundation stability all at once. Bench footing helps you turn your basement into a safe, comfort living space.

Local Backwater Valve Installation

Concerned about sewage backing into your Ajax home during a storm? We install and replace valves to block reverse sewage flow, preventing contamination and expensive property damage.

Window Well Installation

Water collecting around your basement windows is cause for concern. Window wells promote proper drainage which lowers the risk of leaks, mold, and pests.

Basement Leak Detection in Ajax

Can’t find the source of your moisture problem? Our specialized leak detection equipment identifies hidden water intrusion before it becomes more damaging and costly.

How Much Does Basement Waterproofing Cost in Ajax?

Waterproofing costs are based on project scope, including the waterproofing method we use, the project’s complexity, and the materials used.

The following chart outlines the varying costs of basement waterproofing in Ajax, Ontario:

  • Exterior Waterproofing: $100 to $350+ per linear foot
  • Interior Waterproofing: $80 to $180+ per linear foot
  • Weeping Tile Systems: Starting at $30 per foot
  • Sump Pump Installation: $700 to $4,500+ depending on type
  • Window Well Installation: $1800 to $3500+ each
  • Backwater Valve Installation: $2200+ each
foundation waterproofint secure membrane installation
inside basement waterproofing in Ajax

What are the Benefits of Basement Waterproofing in Ajax?

Waterproofing your basement can provide numerous benefits for your home, including:
  • Protection Against Water Damage: One of the primary benefits of basement waterproofing services is preventing water damage. Water seepage and leaks can lead to structural issues, such as foundation damage, cracks in walls, and compromised stability and safety. 
  • Mold Prevention: Moisture in your basement creates an ideal environment for mold and mildew growth. These can cause health problems, including respiratory issues and allergies. Waterproofing measures, such as sealing cracks and using moisture barriers, reduce the chances of mold and mildew development, promoting a healthier living environment.
  • Increased Usable Space: A dry, waterproofed basement opens up possibilities for getting the most out of your space. Once the basement is protected, you can convert it into a living space, home office, gym, or entertainment room.
  • Improved energy efficiency: It’s easier for an HVAC system to heat & cool air that is less humid.
  • Enhanced property value: f you ever decide to sell your home, waterproofed or underpinned basements are major selling points and significantly add to the value of your property.
  • Long-term cost savings: Investing in waterproofing up front will save you money on basement leak repair and water damage repair in the long run.

Waterproofing your basement provides essential protection for your home, enhances its functionality, promotes a healthier living environment, and can even increase its value. It is a wise investment that offers numerous benefits for homeowners.

Why Choose Aquamaster for Basement Waterproofing in Ajax

25-Year Warranty
25-Year
Warranty

Our 25-year warranty is a testament to the superior quality of our materials, workmanship, and the lasting performance of our systems.

Emergency Services
Emergency
Services

Water damage can happen fast. Fortunately, our team acts quicker. We’re available 24/7 for emergency plumbing repairs and waterproofing.

Fully Licensed and Insured
Fully Licensed
and Insured

Professional work by licensed, insured, and trained plumbers. We have the qualifications and expertise to provide waterproofing, underpinning, plumbing, and concrete services.

Upfront Pricing & First-Time Customer Discounts
Upfront Pricing & First-Time Customer Discounts

No hidden costs or surprise fees. We also offer a 10% discount on our Ajax basement waterproofing for first-time customer.

Trusted Since 2009
Trusted
Since 2009

Decades of hands-on experience resolving every problem in the book on properties of all sizes and homes of all ages.

Serving Southern
Serving Southern
Ontario

We’re a team of locals. We understand the area inside and out, from soil conditions and drainage patterns to the climate.

Top-Quality Materials
Top-Quality Materials for Lasting Results

We use materials that are made to last and endure. This includes polyurethane sealants, Delta-MS waterproofing membrane, and Aqua Bloc 770-06 liquid waterproofing membrane.

Stress-Free Experience
Stress-Free Experience

Our team is respectful, efficient, and effective. We produce quality results from the planning stage through to completion. 

5-Star Reviews from 100+ Happy Ajax Customers

Aquamaster has proudly received over 100 five-star reviews from satisfied customers in Ajax! Discover what our past and current clients have to say about their Aquamaster experience.

Aquamaster Toronto handled our exterior basement waterproofing project with impressive technical expertise. Andrew supervised the excavation process carefully to avoid unnecessary disruption to our landscaping. A commercial-grade waterproof membrane was applied evenly across the entire foundation wall. A new weeping tile system was installed with proper slope to ensure effective groundwater redirection. Backfilling and grading were completed professionally, improving drainage around the home.
Маша Мирошниченко
04:28 27 Feb 26
Peter completed the exterior waterproofing about six months ago and we’ve had several heavy rains since then. The basement has stayed 100% dry. His work clearly lasts. Truly impressed.
Valar Gorgis
03:06 24 Dec 25
Amazing work from John and Peter. Had basement waterproofing done and the results were great. The team was professional, explained the process clearly, and finished on time. No more water issues. Highly recommend.
Annan Abu Salha
19:22 22 Dec 25
We chose Mike for exterior basement waterproofing and it was worth every dollar. The crew was on time, respectful, and did a thorough job sealing and protecting the foundation. Amazing value for the quality.
Gabriel Martinelli
16:29 22 Dec 25
I can’t thank Aquamaster enough for their outstanding service. They fixed multiple cracks in my foundation, waterproofed the interior walls, and installed systems to keep groundwater away from the house. The workers were skilled, considerate, and left the entire area neat and tidy. Since the repairs, the basement is dry, safe, and ready to use again — no more worries about mold or structural damage. Superb workmanship and customer care.
zlata
04:31 16 Dec 25
John was honest, reliable, and very skilled. He took care of the interior basement waterproofing and even showed us photos during the process. The results were perfect and the basement smells much fresher now. Fantastic technician!
Alex
00:58 16 Dec 25
Mike handled our interior basement waterproofing and was incredibly detailed. He showed us the problem areas, installed the drainage system perfectly, and made sure everything looked clean and professional. Zero water issues since. Excellent service!
Shafeeq Shafeeq
20:08 15 Dec 25
Mike and Peter did the exterior basement waterproofing on our home. Not only was the workmanship excellent, but the cleanup was spotless. You can tell they really care about their work. Highly recommend this company!
Omar Baqer
19:58 15 Dec 25
John performed our interior basement waterproofing and installed a new sump pump system. He arrived on time, worked quickly, and left everything clean. The difference is amazing—our basement feels dry and safe now. Very impressed with his workmanship.
Mustafa abed-ali
19:49 15 Dec 25
1. Aquamaster did an incredible job waterproofing my basement. The crew arrived exactly when they said they would, took the time to walk me through each step of the process, and worked with impressive focus and efficiency. After the heavy rain last week, water that used to seep in every storm didn’t even make it to the threshold — the basement stayed completely dry for the first time in years. They left the work area spotless and followed up to make sure everything was performing as promised. I’m beyond happy with the results and would recommend Aquamaster to anyone who’s had ongoing moisture issues.
Romina
01:46 26 Nov 25
Our window well was flooding constantly. Aquamaster sent out Mark and Anna. They replaced the drain, sealed the concrete, fixed the grading outside, and made sure everything worked before leaving. They even tested it with water to confirm the issue was solved. Super reliable team.
Назар Павлів
04:53 25 Nov 25
We had a leak in the corner of the basement after a storm, so we called Aquamaster. Alex and Julia came out the same week. They sealed the crack, dug outside to improve drainage, and checked the grading around the house. They even gave us maintenance tips so we wouldn’t face the same issue again. Amazing service and very polite team.
Галина Пустовіт
02:18 21 Nov 25
We contacted Aquamaster after discovering moisture behind our storage shelves. Daniel and Mark handled the repair. They were extremely professional — walked us through the entire waterproofing process, pointed out issues we never noticed, and explained how the foundation was shifting over time. They fixed the crack, sealed the base of the wall, added waterproof coating, and cleaned everything before leaving. The basement smells fresh now instead of damp.
_ МАКСИМ_
05:01 20 Nov 25
Thomas and Leo were incredibly efficient. They worked nonstop until the job was done and kept us updated the whole time. The basement has stayed completely dry since their visit.
Tokyo Ghost
01:58 19 Nov 25
Maria and Alex made everything so easy. Maria was very responsive and patient with our questions, and Alex’s team handled the work efficiently. They waterproofed the basement and fixed a leaking window well. Everything was done perfectly and on schedule. It’s such a relief knowing our basement is protected.
кіра
05:41 16 Nov 25
We couldn’t be happier with Aquamaster Waterproofing. David and Mike handled the entire project from inspection to final cleanup. They repaired our cracked foundation, sealed the basement walls, and added proper drainage. The work was neat, efficient, and done ahead of schedule. The peace of mind they’ve given us is priceless.
Liza 14
02:45 10 Nov 25
We had a major basement flooding issue, and no one could figure it out—until we called Aquamaster Waterproofing. Sarah and David were thorough during the inspection and found that our sump pump had failed. They replaced it, installed a backup pump, and added better drainage around the foundation. The system works flawlessly now, and our basement has been dry ever since. Five-star service from a truly reliable company.
Mercury
02:16 10 Nov 25
We recently moved into an older home and discovered water coming through the floor in the basement. Aquamaster’s team, led by Alex and David, came right away for an inspection. They installed a sump pump, sealed all visible cracks, and made sure our drainage system was working correctly. The workers were polite, neat, and extremely knowledgeable. It’s rare to find a company that combines great service with such high-quality workmanship. I’m beyond satisfied with the results.
Bogdan Perekatov
04:37 08 Nov 25
David and John from Aquamaster did an excellent job fixing our wet basement. They explained the problem clearly and provided a permanent solution. The quality of their work is unbeatable.
Тарас Назарко
04:50 06 Nov 25
Maria at the front office was so kind and helpful, and Daniel’s crew did flawless work sealing our foundation cracks. We can finally enjoy our basement again. Five-star company through and through.
Usman Mohammad
04:56 04 Nov 25
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Frequently Asked Questions about Basement Waterproofing in Ajax

Foundation cracks can be caused by a variety of factors, including:

  • Soil movement: The soil beneath a building can shift and settle over time, causing the foundation to crack or shift. This is often due to changes in moisture content, temperature, or soil compaction.
  • Water damage: Water can cause foundation cracks by exerting pressure on the foundation walls or by weakening the soil beneath the foundation. This can be caused by heavy rainfall, flooding, or a high water table.
  • Poor construction practices: If your foundation was not properly constructed or reinforced, it might be more susceptible to cracking or shifting over time.
  • Tree roots: Large trees planted too close to a building can cause foundation cracks by drawing moisture from the soil and causing it to shrink and shift.

Overall, foundation cracks can be caused by a wide range of factors, and it is important to identify the cause of the crack in order to determine the appropriate repair method.

Basement leak detection typically involves a combination of visual inspection and the use of specialized equipment to identify the source of the leak. Some common methods of basement leak detection include:

  1. Visual inspection – A basement waterproofing contractor in Ajax will inspect the interior and exterior of the building for signs of water damage, such as water stains, mold growth, or damp spots.
  2. Water testing – A contractor may perform a water test by spraying water around the exterior of the building and monitoring for signs of water penetration.
  3. Moisture meters: Moisture meters can be used to detect moisture levels in walls, floors, and other surfaces. High levels of moisture can indicate the presence of a leak.
  4. Infrared cameras: Infrared cameras can be used to detect temperature changes in walls and floors, which can indicate the presence of water.

Once the source of the basement leak is detected, Aquamaster’s experts can determine the appropriate repair method. This may involve injecting the basement wall or floor crack with epoxy solution, waterproofing the basement walls or installing a sump pump or other drainage system.

Basement waterproofing in Ajax can take anywhere from a couple of hours to weeks, depending on the specific solution you need. A simple foundation crack repair (by injecting an epoxy solution) can take a couple of hours, but if your project involves full-scale exterior waterproofing services, excavation, weeping tile installation, and other services, then our services are likely to take days or even weeks. Contact Aquamaster today for an estimate based on your needs.

Postal Codes We Serve in Ajax