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Got a wet basement? Musty odors? Protect your home with our proven solutions & lifetime warranty.

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Our Services

  • Concealed drainage system
  • Powerful, reliable sump pumps
  • Battery backup systems
  • Patented waterproofing products
  • Energy-efficient dehumidifiers
  • Industry-leading warranties

Basement Waterproofing Companies In Ontario

95 Frid Street Unit 3
Hamilton, ON L8P 4M3
Oakville, Burlington, Hamilton, Ancaster, Dundas, Grimsby, Cambridge, Guelph, Milton, St. Catharines, Moffat, Eden Mills, Kilbride, Carlisle, Freelton, Flamborough, Smithville, Hagersville, Golden Horseshoe areas in Ontario.
View company profile for reviews, awards, before & after photos, and more.
23576 Prince Albert Road
Chatham, ON N7M 5J7
199 Exeter Rd Unit E
London, ON N6L 1A4
Advanced Basement Systems is a dealer for the Essex, Chatham, London, and Hanover areas in Ontario.
View company profile for reviews, awards, before & after photos, and more.
12045 McCowan Rd
Stouffville, ON L4A 4C3
12045 McCowan Rd
Stouffville, ON L4A 4C3
7250 Keele St Store #209
Vaughan, ON L4k 1Z8
SERVICE AREA:
Ontario- Greater Toronto: including Mississauga, Vaughn, Brampton, and Orangeville.
View company profile for reviews, awards, before & after photos, and more.
246 Mary St
Tweed, ON K0K 3J0
McInroy Basement Systems has over 10 years of experience as the local basement waterproofing and crawl space repair contractor serving the Greater Belleville Area. Through their association with Basement Systems, Inc. they also have access to top-of-the-line products, training, and more!
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3 Benjamin Lane
Kemptville, ON K0G 1J0
Atlantic Basement Systems is a dealer in Ottawa and Eastern Ontario: Brockville, Smiths Falls, Arnprior, Renfrew, Kemptville, Perth, Rockland, Carleton Place.
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1294 Algoma Rd
Gloucester, ON K1B 3W8
The Foundation Guys are your local experts for quality basement waterproofing and crawl space encapsulation in Ottawa and nearby.
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1620 boul Saint-Elzéar O
Laval, QC H7L 3N2
Systèmes Sous-sol Québec, also known as Basement Systems Quebec, services the Laval, Lachenai, Longueuil, Chambly, Saint-Constant, and Saint-Hyacinthe area.
View company profile for reviews, awards, before & after photos, and more.
256 Nipissing St Unit B
Sturgeon Falls, ON P2B 3B1
Basement Waterproofing and Crawl Space Repair in North Bay, Sudbury, Sault Ste Marie, Gore Bay and Manitoulin Island in Ontario.
View company profile for reviews, awards, before & after photos, and more.

Your Home faces Water Damage

1. Ontario receives a good amount of rain and when you add on melting snow flash floods are a serious concern.

2. When flooding hits your area, your basement is most likely to be the prime target for water damage.

3. If you allow it to be wet, moldy, humid, smelly, and unhealthy, you're abandoning an entire floor of space in your home. Additionally, the basement air - filled with odors, dust mite feces, humidity, and mold spores - will rise into the rest of the house, ruining the healthy environment of the home.

Basement Waterproofing & Crawl Space Repair

When your Ontario home has a flooded basement or a musty, moldy crawl space, your local Basement Systems waterproofing contractors are here for you. With fast installation, they can protect your below-grade space from flooding, humidity, and mold, making your basement or crawl space a cleaner, drier, healthier environment and restoring value to your home.

We Provide:
  • Basement Waterproofing
  • Crawl Space Encapsulation
  • Leak Repairs
  • Exclusive, Patented Products
  • World's Best Sump Pumps
  • Energy-Efficient Dehumidifier             
You Receive:
  • Permanently Dry Basement or Crawl Space
  • Controlled Humidity
  • Mold Mitigation
  • Lifetime Transferable Warranty
  • Greater Home Value
  • Peace of Mind

From Toronto to Thunder Bay and throughout Northern Ontario, our waterproofers are ready to help you and provide free basement or crawl space waterproofing quotes. No obligation free written estimates include an on-site consultation, custom waterproofing design, and a unique presentation on our products and services. 

Ontario's Trusted Waterproofing Company

Testimonials
  • "Very good experience!" Read Full Testimonial

    Gord S. of Crystal Beach, ON

    Customer Testimonial

              Very good experience!
    Gord S.
    Crystal Beach, ON
  • "I was very impressed with everything but when the one fellow stopped to wipe water from their boots on my..." Read Full Testimonial

    Darlene G. of Ridgeway, ON

    Customer Testimonial

              I was very impressed with everything but when the one fellow stopped to wipe water from their boots on my landing I was so impressed
    Darlene G.
    Ridgeway, ON
  • "You should be proud of your install crew and your salesman Todd. They were very professional and did n..." Read Full Testimonial

    Ron S. of Ridgeway, ON

    Customer Testimonial

              You should be proud of your install crew and your salesman Todd. They were very professional and did n excellent job.
    Ron S.
    Ridgeway, ON
  • "You should be really proud of how well every member of the team does their job." Read Full Testimonial

    Tracey H. of Fort Erie, ON

    Customer Testimonial

              Your entire organization deserves to be commended for the professionalism displayed throughout the process. Every person that I interacted from Omni was impressively thorough, helpful and professional – from Mark who did the assessment to Pete who followed up, to Ryan and Shea who conducted the work. I have already referred Omni to two of my neighbors who require new sump pumps and I hope that they decide to call. They won’t be disappointed. In this day and age where everyone claims to put the customer first, you actually delivered, and you should be really proud of how well every member of the team does their job. Excellent work!"
    Tracey H.
    Fort Erie, ON

Basement and crawl space environments are our specialty and it's what we do every day. We have the background, experience, and training you need to get the job done, and done right! Whether your basement has leaky windows, leakage through cracks, pipe penetrations, or hatchway doors, or if water is entering through the wall/floor joint, we have the right solution to keep your basement dry all the time!

For homeowners in Ontario, including Toronto, Thunder Bay, and Hamilton as well as Bearskin Lake, Cat Lake, Fort Albany, Fort Hope, Fort Severn, Kenora, Kingston, Kirkland Lake, North Bay, Owen Sound, Sudbury, Swain Post, and throughout ON, there is a locally owned and operated basement and crawl space contractor nearby. Our dealer network is ready to help you end your crawl space moisture and wet basement issues. Contact us online or by phone for your free basement or crawl space quote!

Don't take chances when you need to fix a wet basement. Go with the company that has specialized in basement waterproofing since 1987. Basement Systems has helped tens of thousands of homeowners solve basement water problems, using an exclusive selection of patented products that aren't available to other contractors. If there's water in your basement, Basement Systems can provide the permanent, warranted solution you're looking for to improve your home's safety, healthfulness and value.
Customer Reviews
  • By Ron S.
    Niagara, ON
    "We were really impressed with Todd and Alfredo, they were really good at..."

    Customer Review

    By Ron S.
    Niagara, ON

    We were really impressed with Todd and Alfredo, they were really good at explaining the whole process and were good to their word during the install!
  • By Ron S.
    Ridgeway, ON
    "You should be proud of your install crew and your salesman Todd. They were..."

    Customer Review

    By Ron S.
    Ridgeway, ON

    You should be proud of your install crew and your salesman Todd. They were very professional and did n excellent job.
  • By Ken T.
    Fort Erie, ON
    "At first *blush* the work seemed expensive, but considering the working..."

    Customer Review

    By Ken T.
    Fort Erie, ON

    At first *blush* the work seemed expensive, but considering the working conditions and amount/type of material required. At the end, I felt it was reasonable and well worth it! Very Satisfied! And your book gave me a food understanding of my problem and your products seemed to be able to solve them!
  • By Lawrence W.
    Port Colborne, ON
    "Very impressed that they were able to overcome a problem with the pit..."

    Customer Review

    By Lawrence W.
    Port Colborne, ON

    Very impressed that they were able to overcome a problem with the pit depth that required a lot of extra work not planned on, and corrected to make sure it was done right
  • By Michael And Holly W.
    Welland, ON
    "Very satisfied with the job. We are very confident we won't see any leaks..."

    Customer Review

    By Michael And Holly W.
    Welland, ON

    Very satisfied with the job. We are very confident we won't see any leaks from this crack again!
  • By Gary G.
    Welland, ON
    "very professional, great products"

    Customer Review

    By Gary G.
    Welland, ON

    very professional, great products
  • By Bev W.
    Dunnville, ON
    "This crew was awesome. The usual people there were Alfredo, Dustin, Gord..."

    Customer Review

    By Bev W.
    Dunnville, ON

    This crew was awesome. The usual people there were Alfredo, Dustin, Gord and Luke. They were efficient and pleasant to be around. They worked very hard.
  • By Zena T.
    Wellandport, ON
    "Efficient, on time, comparable rates."

    Customer Review

    By Zena T.
    Wellandport, ON

    Efficient, on time, comparable rates.
  • By Helene M.
    Fonthill, ON
    "Jocelyn is most friendly, cordial and efficient and she also called 2 days..."

    Customer Review

    By Helene M.
    Fonthill, ON

    Jocelyn is most friendly, cordial and efficient and she also called 2 days prior to the installation just to confirm the plans.
Click to see why people hire us

Recent job requests for basement waterproofing in ON:

Project Location: Sherkston, ON L0S 1R0

Comment: Just purchased a house with flooding in basement. Trees and shrubs are growing very close to foundation. Waterproof is needed regardless. I would like to an on site consultation.

Project Location: Welland, ON L3c 6M2

Comment: Want a bigger dehumidification system so we don't have to empty water containers!

Project Location: Fonthill, ON L0S 1E4

Comment: Need to fix foundation wall crack with water leaking into basement at bottom. Foundation has had an exterior membrane applied.

Project Location: Grimsby, ON L3M 0A1

Comment: Sump pump line has frozen the past two winters. Would like a sump pump overhaul (battery backup, etc) as well as some type of system to prevent freezing or allow for discharge during winter. Please do not call if possible, email only.

Project Location: Binbrook, ON L0R 1C0

Comment: Hi, I currently have an existing sump pump that is plugged in only (no battery back-up/no back-up pump). With all the rain and thunderstorms lately, that pit is continually filling with water and getting pumped off. My worry is if the power went out, I would be without a means of pumping the water out. I am interested in learning more about what can be done to provide some kind of battery back-up/back-up pumping to my system, OR replacing the entire thing to alleviate my worries when it rains. I would like to discuss options and see what is best. Thanks!

Project Location: Ingersoll, ON n5c 1b1

Comment: Lots of water in basement

Project Location: Milton, ON L0P 1B0

Comment: Basement looks like a dungeon and is dirt floor with parked walls that are coming off and a very scary crawl Space housing the hvac

Project Location: Port Hope, ON L1A 1Y2

Comment: One section of the basement in our 120 year old home leaks. A lot. The sump pump is located higher than the area where the leaking water pools. Hope you can give us a solution and an estimate.

Project Location: Komoka, ON N0L 1R0

Comment: Wet basement problem after heavy rain along one wall.

Project Location: Picton, ON K0k 2t0

Comment: Sump pump runs non stop

Project Location: Strathroy, ON N7G 2Y5

Comment: I am seeing some groundwater seepage in my basement. I am not sure why it's happening and if possible would like someone to come out and check

Project Location: Woodbridge, ON l4l 8r6

Comment: I have a crack in my foundation wall that is leaking water on to the floor of my unfinished basement.

Project Location: Strathroy, ON N7G 2Z3

Comment: Water in basement apartment - insurance company sent emergency company to inspect they seem to think its seepage therefore no coverage

Project Location: St. Marys, ON N4x 1c5

Comment: 1600sqft basement Please provide quote. Just looking the carpeted grey

Project Location: Wellesley Ontario, ON N0B 2T0

Comment: Want a sump pump installed with a backup for 3 days if hydro goes out

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