About Us

Clarke Basement Systems has been providing the greater Toronto area with outstanding customer service and quality workmanship in the field of basement waterproofing, foundation and crawl space control since 2003. We are proud partners to the Basement Systems Network, a collective of trusted and experienced basement and waterproofing contractors throughout the USA and Canada. Reach out today for your free estimate! 


Services Provided

  • +Basement Waterproofing

    • Basement Dehumidifiers
    • Basement Floor Crack Repair
    • Basement Mold Remediation
    • Basement Wall Crack Repair
    • Basement Window Well Installation & Replacement
    • Elevator Pit Waterproofing
    • Exterior Basement Waterproofing
    • Interior Basement Waterproofing
  • +Chimney Repair

    • Leaning Chimney Repair
  • +Concrete Leveling & Repair

    • Concrete Leveling & Mudjacking
    • Concrete Steps Leveling
    • Cracked Concrete Step Repair
    • Driveway Leveling
    • Patio Leveling
    • Pool Deck Leveling
    • Sidewalk Leveling
  • +Crawl Space Waterproofing & Encapsulation

    • Crawl Space Access Doors
    • Crawl Space Dehumidifiers
    • Crawl Space Drainage Systems
    • Crawl Space Encapsulation & Repair
    • Crawl Space Pump Out Service
    • Crawl Space Sump Pump Installation
    • Crawl Space Sump Pump Repair
    • Crawl Space Vapor Barrier
    • Crawl Space Vent Covers
  • +Foundation Repair

    • Bowing Wall Repair
    • Earthquake Retrofitting
    • Foundation Crack Repair
    • Foundation Inspection
    • Foundation Raising & Settlement Repair
    • Retaining Wall Repair
    • Sagging Floor Joist Repair
  • +Patios

    • Patio Repair
  • +Sump Pump

    • Sump Pump Installation & Replacement
    • Sump Pump Repair & Service

Company Highlights

  • 24/7 Emergency Service
  • Residential & commercial services
By Ron
As usual excellent service
By Diane
Matt was very professional, stayed late to finish the job and very polite
By John
5-Stars overall!
By John
Fitz Wilks serviced our sump pump and backup battery last week. He did an excellent and efficient job. Extremely knowledgeable and didn't mind us asking questions. Very impressed by his customer relations.
By Robert
Excellent
By Brenda
Thank you very much!
By John
We have annual review of system. Check of sump pump etc. Matt came to do inspection and was very good about explaining what needed to be done. He took time to fix a problem with the sump discharge to take it further from the house. An excellent employee and ambassador for Clarke.
By Trevor
One of my best experiences working with a housing contractor. Sales people went out of their way to make it convenient for us to meet with them. They did a really good job of explaining their products. Sometimes the upselling of some of their optional products came across as being unnecessary, but I understand that is an important part of their business plan. The communication at all levels was excellent with multiple phone calls to confirm best booking times, prompt follow-up on all calls and invoicing. The laborer performing the work was confident, efficient, clean and courteous. He found a better fix for our problem and implemented it with hesitation. That was really appreciated. The operation that you are running is very well structured, disciplined and a pleasure to work with. I wish you could do all of my home repairs.
By Mike
Don Clarke's commitment to his customers and their satisfaction is reflected by office, sales and crew personnel. Great company culture.
By Andrew
They were professional and fun
By Thom
I am very pleased with the products and also very impressed with the company. Good job, Clarke!
By Muriel
there was an an inaccurate drawing from a previous visit and while we know the system is in and the salesperson/crewman confirmed it I'm not sure how clear the company records are on this point so should there be a future issue am concerned ther might be a question about it -NB especially if the house is sold in the future and the new owner has trouble.
By Norman
Every person I dealt with in the company was a professional that treated me like a valued client. There was no hard sell about any of their services. The literature they supplied was very educational. This was one of the best customer experiences I have ever had.
By Michael
Dean Eyford was very helpful and very professional.
By Donna
I am confident I'll never, ever have to call you again.
By Amy
Ron Monk's service and professionalism was exceptional in every aspect. Patient, courteous, knowledgable, and all around pleasure to work with, he continued to provide service by being responsive to a follow up request after the initial assessment.
By Anthony
You Are The Go To People
By Paul
We will finish the waterproofing within a year.
By Thereza
We would like to know why there is a difference between the membrane we were shown by Michael Beighton (salesperson) and the membrane that was installed. Also, what is the difference between the two. Lucio (foreman) did provide us with an explanation, but we would like clarification from Head Office.We were under the impression that our Sump Pump would have a battery back up, but it does not have that feature.
By Adam
Clark Basement Systems was easy to work with and obviously takes pride in their products and workmanship. I am very satisfied with the work and my decision to choose them.
Catherine P.
Fenelon Falls, ON
Hello Clarke Basement Systems, I want to let you know that I think you have top quality staff. Lucio was the manager of the job - and he was amazing.  So respectful of my home and he let me know every step of the way what was happening. I appreciate Ryan as well - he was the sales rep on the job and he was here today as well - and will be back tomorrow with some additional supplies.  Brandon was another person at my home today - he was also very polite and respectful.  I do not know the name of the third person - but he was again - very thoughtful and respectful. A lot of progress was made today and I saw all of the photos of the space.  I appreciate your staff so much.  You are lucky to have such amazing staff in your company.   Regards, Catherine
Kathy H.
Newtonville, ON
Annual sump pump maintenance was performed by Kevin. Kevin was very professional and knowledgeable. 
Jim P.
Stoney Creek, ON
Hi Billy,   Please let me know if it’s normal for your customers to stand back and stare at your work? I’ve been guilty of this multiple times today! I still can’t get over how super impressed we are with how the job turned out. You and your helper have far exceeded our expectations. We thought long and hard about what to do with our sinking patio, spending many hours researching and discussing our options before finally deciding to hire Canadian Concrete Leveling. Following the completion of the project today we are 100% satisfied with our decision. We would recommend you and your company to our friends and family.   Thank you so much!! Jim & Nat
Robert W.
Burlington, ON
Ali did a great job....would use these folks again.
Ramona S.
Burlington, ON
After living in her home for 25 years, this year my Mum got a bit of water in her basement which freaked her out and upset her greatly. After doing research I decided to call 2 companies to obtain 2 estimates to get this situation taken care of for her. Mum is 86!! The first company, really, did not even want to take the time to even talk to me, or come out to her home! He said I will email you some information (which he never did). Sigh. My next call was to Clarke Basement Systems and what a breath of fresh air it was. From the service, to reception, to the Sales Person to our OUTSTANDING CREW, which was headed by ROB .... we were treated so well. Many calls to confirm, to reschedule due to a storm and follow up. Mum and I are thrilled and really really want to comment and THANK ROB and his team for their hard word, respectfulness of Mum's home and doing a fine job. When they were leaving a neighbour came out and he will be calling for an appointment too. You can tell Rob LOVES his work, what a funny guy and so knowledgeable. Thanks again. GO ROB!!!!!
Steve F.
Burlington, ON
I am a realtor and had clients selling a home that had this system installed a few years prior to them buying and again now selling. 4 days before closing a minor leak in the basement and Clarke Basements came out and had it fixed no questions. Great service.
Barb D.
Milton, ON
i want to thank Matt for coming by and fixing those little holes in our new crawlspace floor covering before they became big holes.  I also appreciate the roll of tape he left so we can catch other little tears and holes in the coming years before they too become larger problems. Still love going down there and NOT smelling the earthy damp smell which we used to experience! THANKS!  
Yehuda K.
Toronto, ON
Just a short note of appreciation for Ali's work. He did a stupendous job addressing our sump pump issues. He displayed extraordinary patience and attention to detail and was very solution-oriented. Thanks again!
Nancy W.
Oakville, ON
Ali and Trevor's service was really awesome! Thank you!
Mieke E.
Markham, ON
Ali Fereidouni is courteous, thorough and professional. I always feel confident that our sump pump is in top shape.
Scott F.
Mississauga, ON
The guys (Shane and Luke) we great. They arrived right on time as scheduled and took great care not to damage the grass and lawn any more than was necessary, (can't dig through a flower bed without some damage). Hard workers and friendly, they didn't mind me watching as they worked. I would not hesitate to recommend your company to anyone with a similar problem.
Christine P.
Mississauga, ON
I requested quotes from 3 different companies. While the others were just as nice, the interaction with Clarke Basement Systems was unmatched. It started with the information package mailed to me and then Chris booking the initial inspection. He came to my house and was considerate to call an hour prior to ask permission for another colleague to join the inspection. They arrived at the time they said they would. They checked the overall moisture level of the house, inspected the cracks, explained their system and process and answered all my questions. Chris gave me time to review quotes to make my decision and followed up after a week if I’ve made a decision. After answering my follow up questions, I decided to proceed with the work. Chris explained what comes next from calls from the office to schedule the crew, what to expect when the crew arrives, how long the work will take and payment details. The scheduling call came as expected and advised they may be able to come in sooner if it works with my schedule. Which ended up being completed 2 weeks sooner than originally scheduled. Worked great for me. Lucio and Dimitri came to do the work and I love how they call 15-30 minutes ahead to let me know they’re on their way. They were wearing masks, kept socially distanced and laid out the floor covers when I let them in. They were very courteous and professional. briefly walked me through what they will do and how long they will be. Also did me a favour of patching up the exterior crack to close it both from inside and out. Cleaned up after themselves and showed me the finished work and advised of drying time. I’m happy with the work and will monitor for leaks when the snow melts. But I’m happy with the experience I had with Clarke basement systems. I highly recommend them. Thank you!
David S.
Coe Hill, ON
I want to thank Dave and Dan and their helper who I did not get his name, for their excellent installation work on the waterproofing/insulation and sump pump work in the crawl space at my cottage. They showed up when they said they would and worked diligently on my crawl space. I am not sure they took any breaks. These guys were terrific! Very knowledgeable and approachable when I had questions as to what they were doing they were happy to educate me. They left the site as clean and tidy as they found it. I resisted the urge to sneak a peek at the work although they often invited me down to review the progress. I was totally amazed by the transformation of the crawl space. Every year I will have Clark Basement systems due the preventative maintenance. Many thanks for a great job! I highly recommend them.
Pankaj M.
Mississauga, ON
Your two staff members Dustin and Andrew did an excellent workmanship. Both very professional and courteous and explained in advance what and how they were going to do the work. Gave me excellent suggestions as to how to reinstall dry wall after insulating the wall with rigid 4 inch foam to increase the R value. Very pleased with their professionalism and good work attitude. They worked non -stop without taking a break. I have used your services in the past and will keep recommending to others
Josephine C.
Mississauga, ON
Lucio & Russell are exceptional at their craft! Experts, knowledgeable and precise. With every detail, they explained what the process was and always asked for feedback. They are timely, organized and respectful.
Arjuan P.
Mississauga, ON
Clarke Basement Systems is a marvelous company to hire. They were professional and prompt from the beginning starting with Ron and the team. I want to especially thank Lucio, Dimitry, and Dustin - they went above and beyond with their work. I would hire Clarke Basement again without hesitation! A+++
Pat M.
Mississauga, ON
We have a sunroom addition that had been installed by a previous owner. Due to a combination of poor soil and what appeared to be supports installed at inadequate depths the structure had settled. We hired Clarke Basement Systems to install their SmartJack system to stabilize the structure. Using the SmartJacks they also raised one of the corners of the sunroom which brought windows and doors back into alignment. It was like night and day to have doors that no longer stuck when attempting to open them. From meeting with Ron who came to assess the job and provide a quote through to booking and work completion communication was excellent. The job took two days and it was heavy work. It gave us added comfort that Don Clarke (owner) was on site throughout, working with his installation team. He was very patient and courteous in walking us through what they were doing as the job unfolded. Our experience was positive and we would not hesitate to hire Clarke Basement Systems again should the need arise.
Gary M.
Mississauga, ON
There was a corner in the basement of Gary M.'s Mississauga, ON home where a water puddle would mysteriously form every time it rained. Gary was puzzled by the fact that there were no other signs of water intrusion on the walls or ceiling. After doing some research online, he called Clarke Basement Systems for help. In this video we speaks about the entire experience, from the first inspection all the way through completion Gary is also very happy with the results. His basement is now dry all the time, rain or shine.
Scott F.
Missisauga, ON
Every time I contacted Clarke Basement, they were on time and returned any calls promptly, and if i had any questions they answered the questions personally. I believe the job was done very professionally and the two installers had no problem with me watching them doing the work and answered any question I had. I'd recommend Clark Basement Systems to almost anyone!
Artyom S.
Mississauga, ON
I had the pleasure of working with Todd Smith on my basement. He provides you with all of the information you need to know during the quoting process to feel confident moving forward with them. Compared to other quotes I received he did a more thorough inspection and offered me multiple repair options which I appreciated.
  • Crawlspace Renewal in Meaford, ON - Before Photo
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    Crawlspace Renewal in Meaford, ON - After Photo
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    Crawlspace Renewal in Meaford, ON

    This cottage homeowner had concerns for her crawlspace. The area was causing moisture problems through the home and posed a potential threat for mould to grow. She was planning to sell the home, but with moisture issues, this was hard to do. It's not news- no one wants a wet crawlspace problem in their home! 

    After assessing the issue, recommended a full encapsulation of the area. We arrived on the site and cleaned the crawlspace in order to encapsulate the area with our CleanSpace® crawlspace solution. 

    Now the area is clean and can stay dry. This cottage can now be placed for sale! 

  • Broken Sump Pump Stinks Up Crawl Space in Fenelon Falls, Ontario - Before Photo
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    Broken Sump Pump Stinks Up Crawl Space in Fenelon Falls, Ontario - After Photo
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    Broken Sump Pump Stinks Up Crawl Space in Fenelon Falls, Ontario

    Who doesn’t love going to the cottage? From leaving work on a Friday afternoon to when you first walk through the door, we can’t wait to get away from it all and smell the fresh air.

    For a customer in Fenelon Falls, Ontario, fresh air wasn’t all she was smelling. A broken, old sump pump was causing quite a stench in her cottage crawl space. The odour was spreading throughout the whole cottage and had become the main talking point when guests came to visit. 

    System Design Specialist Ryan Hanlon created a full waterproofing system for the customer that included a SmartSump® Sump Pump and an UltraSump® Battery Backup. Foreman Lucio Flores and his crew installed the products, removing not just water from the crawl space, but the musty smell too.

    The customer is delighted that her cottage smells fresh once again. Her basement is waterproofed for many years to come, with a warranty too!

  • Crawl Space Leaves Cottage Smelling Musty in Fenelon Falls, Ontario - Before Photo
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    Crawl Space Leaves Cottage Smelling Musty in Fenelon Falls, Ontario - After Photo
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    Crawl Space Leaves Cottage Smelling Musty in Fenelon Falls, Ontario

     When you arrive at a cottage, the first thing you expect is the smell of nature as you get out of the car, and maybe a small fire burning in a wood stove. What you don’t expect is a musty smell coming from a crawl space, spreading throughout the entire cottage. 

    A customer in Fenelon Falls, Ontario, was dealing with a musty smelling basement. Water was entering the space, and the smell was starting to render the cottage unuseable. The cottage owner reached out to Clarke Basement Systems, and System Design Specialist Ryan Hanlon designed a full waterproofing system for the crawl space. The system included a complete encapsulation with CleanSpace® Vapour Barrier, and R20 Wall Membrane to insulate the space, installed by Foreman Lucio Flores

    The customer is thrilled that her basement is now waterproofed. Not only did we eliminate the smell, but we also blocked a hole in the foundation that raccoons were using as an entryway to the crawl space. Some unhappy raccoons but a very happy customer!

  • Humidity Causes Crawl Space Mould at Cottage in Fenelon Falls, Ontario - Before Photo
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    Humidity Causes Crawl Space Mould at Cottage in Fenelon Falls, Ontario - After Photo
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    Humidity Causes Crawl Space Mould at Cottage in Fenelon Falls, Ontario

    When you head up north to the cottage, the last thing you want to do when you get there is deal with a damp crawl space. The smell can be horrible, and the humidity can cause severe damage to the building.

    A customer in Fenelon Falls, Ontario, reached out to Clarke Basement Systems, looking for a solution for her wet crawl space. System Design Specialist Ryan Hanlon met with the customer and inspected her cottage. He designed a waterproofing system that included an Aprilaire® MoistureLoc Dehumidifier, which keeps the relative humidity below 55%. Foreman Lucio Flores installed the dehumidifier strategically in the crawl space, complimenting the rest of the waterproofing system.

    The customer is delighted that she no longer needs to worry about damage to her cottage caused by moisture and mould, and the first thing she notices when she steps inside isn’t a musty smell.

  • Pool Deck Lift in Waterloo, ON - Before Photo
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    Pool Deck Lift in Waterloo, ON - After Photo
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    Pool Deck Lift in Waterloo, ON

    We used PolyLevel® Injection to lift a pool deck in order to improve the slope and eliminate trip hazards. This lift was nearly three inches!

     

  • Leveling a Pool Deck in Waterloo, ON - Before Photo
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    Leveling a Pool Deck in Waterloo, ON - After Photo
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    Leveling a Pool Deck in Waterloo, ON

    We eliminated trip hazards around this pool using PolyLevel® Injection to lift and stabilize the deck.

     

  • Pool Deck Polylevel® Injection in Waterloo, ON - Before Photo
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    Pool Deck Polylevel® Injection in Waterloo, ON - After Photo
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    Pool Deck Polylevel® Injection in Waterloo, ON

    We used our PolyLevel® Injection for this pool deck to void fill, without lifting. This was primarily critter control as the dirt underneath the pool deck was missing due to burrowing animals.

  • Waterloo, ON Backyard Patio Lifted using PolyLevel® - Before Photo
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    Waterloo, ON Backyard Patio Lifted using PolyLevel® - After Photo
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    Waterloo, ON Backyard Patio Lifted using PolyLevel®

    We used PolyLevel® Injection on a concrete slab on this grade backyard patio and seal with NexusPro® Sealant. The use of PolyLevel® ensured the concrete was stabilized and leveled. 

  • Waterproofing a Future Business Space in Toronto, ON - Before Photo
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    Waterproofing a Future Business Space in Toronto, ON - After Photo
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    Waterproofing a Future Business Space in Toronto, ON

    A home in Toronto, Ontario had water problems in the entire basement of the house. The house was 100-years-old with a stone foundation. They had groundwater seepage along the walls and hydrostatic pressure forcing water through areas of the thin and unlevelled, broken floor. The homeowner had to have mould remediation. Plans were made to finish the basement, so they wanted to ensure that it stayed dry and mold didn’t reoccur. The customers home office was in that room. He relied heavily on that room for his business, but due to the water, he couldn’t have his equipment in there.

    They called Clarke Basement Systems to fix the water problems so they could get their business workspace up and running. Our sales rep; Ron Monk explained to the customer that they would need floor removal and replacement, WaterGuard® Below-Floor Drain, TripleSafe™ Complete Sump Pump System, CleanSpace® Vapour Barrier, IceGuard® Discharge Line System. Dave Jackson, Jose Martinez and the team were prepared to take on this messy job and turn it into a clean, dry work space. The floor replaced provided a sub-floor drainage bed and an adequate three-inch level floor slab. WaterGuard® was installed around the full perimeter of the foundation to collect water and take it to a sump pump ensuring the whole basement stays dry. Cleanspace was put on the walls to reduce relative humidity, ensure wall leaks are drained to the WaterGuard® and protects the finished walls installed on top of it. The TripleSafe™ sump system ensures the basement stays dry all the time with the IceGuard® protecting the home in the event of frozen or blocked discharge lines.

    The client was satisfied because the basement is now dry and ready for finishing. They can now renovate that space and use it for their business without worrying about leakage or flooding!

  • CarbonArmor System to help with wall bowing, Burlington, ON - Before Photo
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    CarbonArmor System to help with wall bowing, Burlington, ON - After Photo
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    CarbonArmor System to help with wall bowing, Burlington, ON

    At first glance, the basement in the before picture looks similar to any other basement with tons of random things stored there, but once we were able to inspect the walls, we noticed a crack from one window to the other. It is easier to see in the after picture. 

    To stop the foundation wall from bowing in, Clarke Basement Systems installed CarbonArmor® Reinforcing System, which is the same material to reinforce bridges, skyscrapers and bomb shelters. With our CarbonArmor installed, this Burlington homeowner can now rest easy, knowing that the best systems available are supporting his once bowing, basement wall

Homestars Best of the Best 2024

Homestars Best of the Best 2024

Best Waterproofing / Water Damage Restoration

Best Waterproofing / Water Damage Restoration

Best Basement Repair

Best Basement Repair

Total Sales - Foundation Products - #50

Total Sales - Foundation Products - #50

Homestars - Best of 2021 Award

Homestars - Best of 2021 Award

#47 Total Sales, 2019 - 2020

#47 Total Sales, 2019 - 2020

30th Total Sales - Foundation Division

30th Total Sales - Foundation Division

144% Increase In Foundation Sales - 2019

144% Increase In Foundation Sales - 2019

Homestars "best of" Award 2020

Homestars "best of" Award 2020

Best of 2019 Homestars Award

Best of 2019 Homestars Award

#32 DEALER  FOR TOTAL SALES 2017-2018

#32 DEALER FOR TOTAL SALES 2017-2018

HomeStars Best of 2016 Award

HomeStars Best of 2016 Award

Readers Choice Award Winner 2015

Readers Choice Award Winner 2015

Best of 2012 for Home Stars

Best of 2012 for Home Stars

2012 Talk of the Town Customer Satisfaction Award

2012 Talk of the Town Customer Satisfaction Award