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

A dry, healthy home starts here.
Contact your local dealer or call 1-800-638-7048

Your Local Dealer is

All-Dry of the Carolinas

Contact Us For A Free Quote!

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

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.
95 Frid Street Unit 1
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.
1735 Bayly St
Pickering, ON L1W 3G7
Service Area:
Greater Toronto: including Toronto, Markham, Mississauga, Pickering, and nearby.
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!
View company profile for reviews, awards, before & after photos, and more.
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.
View company profile for reviews, awards, before & after photos, and more.
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.
View company profile for reviews, awards, before & after photos, and more.
1620 boul Saint-Elzéar O
Laval, QC H7L 3N2
Systèmes Sous-sol Québec, also known as Basement Systems Quebec, services the Quebec, Montreal, Joliette, Laval, Lachenai, Longueuil, Chambly, Saint-Constant, and Saint-Hyacinthe area.
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

  • Hazel from Windsor Ontario was hit like many people in her area by the 2017 floods. For the first time in 30... Read Full Testimonial
    Hazel O.
    Windsor, ON

    Customer Testimonial

    Hazel O.
    Windsor, ON
    Hazel from Windsor Ontario was hit like many people in her area by the 2017 floods. For the first time in 30 years her house was flooded and she needed it to be fixed right away. Hazel had come across many of our Advanced Basement Systems commercial and called right away and was able to get her home fixed. She added the TripleSafe Sump Pump and waterguard to her home and she has not had any flooding since.
  • “Couldn’t even tell they were here, other than the crawl space is beautiful, when they... Read Full Testimonial
    Mitch M.
    Petroila, ON

    Customer Testimonial

    Mitch M.
    Petroila, ON
    Issue was dirt floor, no insulation, warm moist air wet all the time, mold always a concern. A google search and Advanced Basement Systems came up with the best rating. Called the office and an appointment was booked with Nick. The Inspector came out, inspected the crawlspace, mapped out the project on the spot including a price and gave some options. Initially a partial job was selected, further discussion and sample of product reveled a better option and a complete job was chosen. The use of the material sample provided the homeowner a better sense of the security the job would be done right. Notice the floors are warmer and expect this to translate into energy savings and home comfort improvement. Surprises include the speed with which the job was completed, the conditions of the home and surrounding after the crew left. “Couldn’t even tell they were here, other than the crawl space is beautiful, when they left” “If you want somebody to do the job quickly and efficiently and without hassle, then you should call Advanced Basement Systems.”
  • If anyone needs any work done in their basement this is the company to choose. Read Full Testimonial
    Peter and Debbie K.
    Sarnia, ON

    Customer Testimonial

    Peter and Debbie K.
    Sarnia, ON
    Looking for a basement contractor? Here's what these happy customers had to say about their experience with Advanced Basement Systems: "If anyone needs any work done in their basement this is the company to choose. From the first phone call to right to the end result, it was handled professionally and we were treated with respect."
  • In only one month, Basement Systems fixed the problem in my house. When finished, they did put all the... Read Full Testimonial
    Mr. Gonzalez
    Laval, QC

    Customer Testimonial

    Mr. Gonzalez
    Laval, QC
    Mr. Gonzalez' home in Laval, Quebec had a finished basement that one day began to leak and cause many problems. As a savvy homeowner, Mr. Gonzales began to search the internet for the right company to fix the problem and restore his basement. That is how he found Basement Systems Quebec. The company not only that the right solution to stop basement leaks, but they also had the right materials to restore the water damaged walls and floors. The company is the only basement restoration company in Quebec to offer MillCreek waterproof basement flooring and the exclusive EverLast Basement Wall Restoration System: 100% waterproof and mold resistant material that will not support mold growth or be damaged by moisture and water accidents. Mr. Gonzalez is extremely satisfied with the way his basement looks now, and confident that it will last for many years. He is also very happy with the service provided by the company. "In only one month, Basement Systems fixed the problem in my house. When finished, they did put all the furniture, all the equipment in the same place as when they saw it at the first moment they came to my house."
  • Si je trouve quelqu’un qui aurait le même problème, je suis prêt à... Read Full Testimonial
    Lucian G.
    Montreal, QC

    Customer Testimonial

    Lucian G.
    Montreal, QC
    Ce père a découvert des infiltrations d’eau et des dommages dans le sous-sol de son fils dans la Rive-Sud de Montréal. Il a aidé son fils à trouver une bonne compagnie qui aurait une solution adaptée à ce problème. En faisant sa recherche en ligne, il a trouvé beaucoup d’explications sur notre site web et a bien aimé la logique de notre système d’imperméabilisation de sous-sol de l’intérieur. M Ghitescu a trouvé que le système de drain intérieur WaterGuard et les systèmes de pompes de puisard SuperSump et UltraSump étaient ce qu’il leur fallait. Dans cette vidéo, notre client discute de la qualité de la relation qu’il a eue avec les membres de notre équipe dès le début de la procédure. Dans ses propres mots : « Si je trouve quelqu’un qui aurait le même problème, je suis prêt à recommander la compagnie. »
  • Il y avait vraiment une belle conscience professionnelle de tous les ouvriers qui sont venus ici! Read Full Testimonial
    Linda-Lyle Aubry
    Rosemont-La Petite-Patrie, QC

    Customer Testimonial

    Linda-Lyle Aubry
    Rosemont-La Petite-Patrie, QC
    Suite aux dégâts d’eau qu’a subi le sous-sol de sa maison centenaire dû à un bris du chauffe-eau, Mme Aubry a appelé sa compagnie d'assurance pour constater les dommages. Cette dernière a réalisé, après avoir enlevé le plancher, qu'il y avait une infiltration d’eau au niveau de la fondation et ne pouvait donc payer pour les réparations des dégâts d’eau que si le sous-sol était complètement imperméabilisé. Après avoir rencontré 2 compagnies sans être convaincus que les solutions règleraient leur problème, Mme Aubry et son conjoint se sont tournés vers l’internet et ont trouvé Systèmes Sous-sols Québec. Comme nos clients ne voulaient pas embarquer dans de grands travaux, notre système de drainage intérieur WaterGuard était une solution parfaite, puisqu’ il remplaçait complètement le drain français, et leur permettait donc d’éviter de grands travaux d'excavation dans leur cour nouvellement aménagée. Un autre grand avantage avec notre compagnie était la garantie à vie que nous offrons pour le drain, en comparaison avec les autres entrepreneurs en étanchéisation des sous-sols qui ne leur ont offert que des garanties de 10 ans. Mme Aubry et son conjoint ont très aimé l'approche de tout notre personnel : de la confiance qu’a émané notre spécialiste Jorge en agissant comme conseiller plutôt que comme vendeur, à l’empathie et l’esprit de toute l’équipe, le respect de leurs présence, valeurs et environnement. Dans ses propres mots Mme Aubry nous racontait qu’« Il y avait vraiment une belle conscience professionnelle de tous les ouvriers qui sont venus ici". Mme Aubry a tellement apprécié le service de notre équipe qu'elle a trouvé « qu’ils avaient un esprit familial puis qu’[elle] faisait partie de la famille". Enfin nous sommes très contents d’avoir pu répondre aux besoins de Mme Aubry et de sa famille, et de rendre son sous-sol habitable.
  • We paid less than we would have paid if we went with another supplier but the work was actually done well and... Read Full Testimonial
    Nick I.
    St. Leonard, QC

    Customer Testimonial

    Nick I.
    St. Leonard, QC
    After ten years living in his home, Nick I. from St. Leonard, Quebec noticed that the basement started to leak, probably because of an extension that was built without proper drainage. He called a few companies in the area for an estimate, but only Basement Systems Quebec offered a complete solution that made sense to him for a number of reasons. First it wouldn't require digging out the foundation from the outside or a lot of excavation from the inside. Installing the exclusive WaterGuard system offered by the company would only require jack hammering a six inch trench along the interior perimeter of the basement walls. The system was also more affordable, but it was the sump pump system with alarm and a battery backup, and the Transferable Lifetime Warranty offered by the company that really convinced Nick that he had the right company and the right products for the job. "Overall we are very satisfied. If someone would come to me and ask me for my advice, without hesitation I would strongly recommend Basement Systems Quebec, because their problems would be solved, they could be assured that there wouldn't be any more water coming into their house, and the service that they would provide would be very good, and they could have the confidence that their are reliable." - explains Nick. "We paid less than we would have paid if we went with another supplier but the work was actually done well and we haven't had a problem ever since. "
  • My experience with Systèmes Sous-sol Québec has been excellent. Read Full Testimonial
    Daniel C.
    Ahuntsic-Cartierville, QC

    Customer Testimonial

    Daniel C.
    Ahuntsic-Cartierville, QC
    The problem I had fixed was with one of my dwellings. I have a three and a half that is a short basement, and it had water infiltration. One of the walls was starting to show cracks.In theory, there was supposed to be a French drain on the outside, but I never dug the outside earth around the house. In other words, I have a swimming pool on the outside, a deck that occupies part of the backyard, so we would have had to demolish everything to enter the equipment in order to access the French drain.When I went to the home show, I saw this was a professional company that offered solutions adapted to the type of problems I was facing. The company was specialized in crawl spaces, which was my case, and in basement water infiltration, specifically. What I liked is that we were able to find, with the WaterGuard system, the ability to install a French drain as there was water infiltration, from the inside of the house rather than do it from the outside.As for my level of satisfaction, if I have a neighbor or friend who mentions they have similar water infiltration problems and who need a solution, I will not hesitate to recommend Systèmes Sous-sol Québec.The company is very professional, a quality service from finding the solution and selling it to the execution of the work.The work went very well, the team was very professional. They were meeting with me from time to time during the days when the work was being done and giving me explanations during the different stages. I was looking for a company that was specialized in this kind of problems.Do a solution that would last very long. When I will sell the house, the warranty is transferable. My experience with Systèmes Sous-sol Québec has been excellent.There is a lifetime warranty that is offered with it.
  • In this video, the family discusses their experience with Systèmes Sous-sol Québec and the... Read Full Testimonial
    Eva & Jeff P.
    Notre-Dame-de-l'ÃŽle-Perrot, QC

    Customer Testimonial

    Eva & Jeff P.
    Notre-Dame-de-l'ÃŽle-Perrot, QC
    Eva and Jeff Parry, residents of Notre-Dame-de-l’Île-Perrot, QC, had dirt crawl space that was very humid because of the soil and the water infiltrations. Mold started to appear on walls and floors. They knew they had to fix this issue because their daughter Jessika had a terminal condition called Spinal Muscular Atrophy type 1 so the Parrys had to do everything they could to improve the air quality that was badly affecting her breathing and respiratory system. Our team went and fixed this problem by fully encapsulating the crawl space by installing a vapor barrier membrane, a crawl space interior drain, a sump pump system and a powerful dehumidifier system. In this video, the family discusses their experience with Systèmes Sous-sol Québec and the impact of the encapsulation on their daughter’s health.

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

  • full starfull starfull starfull starfull star
    By Wendy F.
    Kingsville, ON
    Joel's customer service skills are excellent - great...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Wendy F.
    Kingsville, ON
    Joel's customer service skills are excellent - great employee for you!!
  • full starfull starfull starfull starhalf star
    By M. V.
    Kingsville, ON
    Every employee that I came in contact with during this...
    View Review

    Customer Review

    full starfull starfull starfull starhalf star
    By M. V.
    Kingsville, ON
    Every employee that I came in contact with during this process ( Bryan, Adele, Justine ,Jonathan) were professional and friendly. A pleasure to do business this way.
  • full starfull starfull starfull starfull star
    By Private
    Kingsville, ON
    I would like you to know how pleasant and very informative...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Private
    Kingsville, ON
    I would like you to know how pleasant and very informative Kevin P. was when he did the installation of our triplesafe sump pump. His partner (i think his name is Shaun) was also a consistent and hard worker. Kevin didn't leave until I saw the final installation and explained the workings of the pump. I was very satisfied with the job. No dirt or mess was left behind. As a matter of a fact, the sump pump room was left a little cleaner than before the job.
  • full starfull starfull starfull starhalf star
    By Judy V.
    Kingsville, ON
    Very professional and knowledgeable
    View Review

    Customer Review

    full starfull starfull starfull starhalf star
    By Judy V.
    Kingsville, ON
    Very professional and knowledgeable
  • full starfull starfull starfull starfull star
    By Robert T.
    Kingsville, ON
    Overall it was a great experience and I received what I was...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Robert T.
    Kingsville, ON
    Overall it was a great experience and I received what I was promised.
  • full starfull starfull starfull starfull star
    By Elfie M.
    Kingsville, ON
    Kevin Gill and his crew, Patrick and Sam were courteous and...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Elfie M.
    Kingsville, ON
    Kevin Gill and his crew, Patrick and Sam were courteous and professional. They provided a good service within a shorter time frame than expected. They were most helpful in moving some heavy items. Thank you
  • full starfull starfull starfull starfull star
    By Wayne H.
    Kingsvilled, ON
    Salesman very good and we liked the presentation by...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Wayne H.
    Kingsvilled, ON
    Salesman very good and we liked the presentation by computer what was going to be done. Team of workers very polite and courteous, the foreman explained things clearly to us if we had any questions...Basement looks wonderful. friends impressed how neat and clean everything looks...
  • full starfull starfull starfull starfull star
    By Gerald
    Kingsville, ON
    Joel is very easy to talk with.He's a gentleman.He took the...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Gerald
    Kingsville, ON
    Joel is very easy to talk with.He's a gentleman.He took the time to explain about the care of the sump pump and answered my questions about the humidity I'm dealing with in my basement. Our hydro bill is outrageous and I discussed that with him. He was quite helpfull.
  • full starfull starfull starfull starfull star
    By Richard
    Kingsville, ON
    From start to finish, the whole process was simple. The...
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Richard
    Kingsville, ON
    From start to finish, the whole process was simple. The lifetime warranty sold us - but after the finished product - the service experience was a bonus!
Click to see why people hire us

Recent job requests for basement waterproofing in ON:

Project Location: Lasalle, ON N9J 3L5

Comment: Water leaking in one of room in basement.

Project Location: Windsor, ON N9E 2A6

Comment: About 300 sq ft basement room. therma dry flooring

Project Location: Windsor, ON N9A 4V4

Comment: Water coming into basement when its raining

Project Location: Chatham, ON N7L 4N2

Comment: Every time we get a lot of heavy rain in a short periods of time, our basement gets water. It seeps in from the walls (block foundation).

Project Location: Sombra, ON N0p 2H0

Comment: Water leaking in to finished basement .Not sure if problem with gutters or foundation.

Project Location: Alvinston, ON N0N 1A0

Comment: Dirt basement with stone foundation it is always damp

Project Location: Appin, ON N0L 1A0

Comment: Water is always present in certain spots on the basement floor. As fast as we shop vac the water reappears.

Project Location: Sarnia, ON N7S 4K7

Comment: Looking to get a quote for my basement.

Project Location: Muncey, ON N0L 1Y0

Comment: Water leaks almost everything it rains, the window well is a problem.

Project Location: Watford, ON N0M 2S0

Comment: Looking to put carpet on a concrete basement floor. Our location has humidity most of the year.

Project Location: Komoka, ON N0L 1R0

Comment: Needing consultation for replacement sump-pump, with back-up, and outdoor drainage.

Project Location: Vienna, ON N0J 1Z0

Comment: We have water leaking in the basement in 2 spots, sump is keeping up, seems like might be seeping through foundation

Project Location: Lambton Shores, ON N0n 1j7

Comment: Leaking basement at our cottage.

Project Location: Exeter, ON N0M 1S1

Comment: Water leaking in at floor in basement under window area

Project Location: Wellesley, ON N0B 2T0

Comment: Our dirt floor basement that has continuous running water in it has not started to mold. Help!

get a free estimate
Find Local Dealer
Free Quote