Professional Basement, Foundation & Crawlspace Waterproofing Contractors in Ajax, ON

The highest-rated Basement Waterproofing & Crawlspace Repair companies out of 47 vetted & reviewed in the Ajax area.

Crawford & Son's

Crawford & Son's

(5)
“From the quote to the completion of the job, these guys are top notch. Professional, honest, hard working, friendly, tidy and so much more. Peter explained everything to me during the process and all questions were welcome. They went above and beyond...”
Free Initial Consultation
In Business Since 2002
170 Fuller Rd #4, Ajax, ON L1S 7G8
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Wrench it Up

Wrench it Up

(49)
Dishwasher Services, Water Pump Services, Bathtub Services
“Wrench It Up Plumbing's plumbers are courteous, knowledgeable, and responsive to client needs. Following a thorough safety inspection, Matt Carson provided multiple options for additional action. He was informed and offered us long-term solutions to ...”
Licensed
Emergency Services
In Business Since 2017
390 Progress Ave Unit# 2, Toronto, ON M1P 2Z6
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Aluneed Ltd

Aluneed Ltd

(48)
Foundation, Drain, Waterproofing
“I have to admit, I appreciated the straight talk about waterproofing. Alex gave us the best and worst case scenarios and stuck to his word as the job progressed. The two employees who did our house were totally professional and did excellent work...”
Licensed
Family Business
Free Initial Consultation
In Business Since 2020
Serving Ajax Area
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Act Fast Waterproofing Corp.

Act Fast Waterproofing Corp.

(50)
Demolition and Excavation, Basement Waterproofing Toronto, Crack Injection Sealing
“Colm and the Act Fast team were excellent and I am very happy that I chose them to perform my indoor waterproofing and sump pump installation. They were effortless to engage with, professional, punctual and offered a competitive price. It is clear th...”
Free Initial Consultation
In Business Since 2012
2 Red Deer Ave, Toronto, ON M1N 2Y7
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Canadian Concrete Leveling

Canadian Concrete Leveling

(50)
  • Technicians
  • Slab
  • Results
“The team from Canadian concrete leveling went above and beyond taking care of customers needs they explained how the product worked, they left the site immaculate clean, I am a general contractor in construction field and my first experience using cc...”
Locally Owned & Operated
Free Initial Consultation
Serving Ajax Area
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Restoration Mate

Restoration Mate

(37)
Sanitizing & Disinfection, Asbestos Removal, Odour Removal
“When I found water damage in my new home, I called Restoration Mate and Justin was at my house inspecting in a few hours. He had one of his crews come and start working on repairs within a few days. Him and his crew were very professional and communi...”
Emergency Services
Free Initial Consultation
In Business Since 2019
80 Dynamic Dr Unit 2, Scarborough, ON M1V 2V1
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City Wide Group

City Wide Group

(46)
Basement Lowering | Underpinning, Blindside Waterproofing Applications, Blocked Main Drains
“I used the City Wide Group for some waterproofing work on my foundation. From my initial contact with the company and Chris the owner, to the receipt of their formal proposal , I could tell I was dealing with an extremely professional business. T...”
Free Initial Consultation
Family Business
63+ Years Experience
Serving Ajax Area
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Konstruction Group Inc.

Konstruction Group Inc.

(28)
  • Quality
  • Team
  • House
“We hired Konstruction Group to help with our new build in North York and we were extremely pleased with the results. The framers and foundation crew were extremely professional with great attention to detail. They framed a very difficult roof on tim...”
Free Initial Consultation
1315 Lawrence Ave E #410, Toronto, ON M3A 3R3
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Northland Paving Toronto

Northland Paving Toronto

(22)
  • Quote
  • Company
  • Product
“Georgio came by and gave me a quote, had a sketch with measurements made up by the next day. The guys came and dug up the old driveway and put the stone down. Then came time to pave and they came and did a terrific job. The boys were a great bunch di...”
Licensed, BBB Accredited
30+ Years Experience
70 Minuk Acres, Toronto, ON M1E 4Y6
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Chapman Builder's Supplies Ltd

Chapman Builder's Supplies Ltd

(42)
“No frills, in a good way. I purchased 3/4 clear limestone and some edging stones to clean up part of my backyard. I was very happy with the selection and pricing. Great alternative to going to big box stores. The bags of material made it easy to acco...”
4189 Kingston Rd, West Hill, ON M1E 2M5
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Desa Contracting and Restoration

Desa Contracting and Restoration

(15)
  • Contractor
  • Company
  • House
“I have had the privilege of collaborating with DESA Contracting , and I must say that professionalism was consistently evident throughout our engagement. From the initial stages of project planning to its successful completion, DESA Contracting demo...”
IICRC, IICRC Certified
Free Initial Consultation
Emergency Services
In Business Since 2017
145 Royal Crest Ct Unit 15, Markham, ON L3R 9Z4
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Durham Backhoe Basement Waterproofing

Durham Backhoe Basement Waterproofing

(40)
  • Spring
  • Crew
  • Price
“Durham Backhoe did an excellent job waterproofing the exterior of my home. The team was very professional and kept me in the loop on what was taking place and where the issues with the basement were. George took the time to explain the process and ...”
Free Initial Consultation
Locally Owned & Operated
In Business Since 2009
Serving Ajax Area
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Aquaseal Foundation Crack Repair Wet Basement Solutions

Aquaseal Foundation Crack Repair Wet Basement Solutions

(39)
Inside Weeping Tile Drainage System, Polyurethane Resin Crack Injection, Exterior Basement Waterproofing Application
“I am now a 3rd time customer of Aquaseal. First used Aquaseal approximately 15 years ago, then a new leak sprung up in a different location about 8 years ago and now another leak on the other side of the house. In every case my wife and I have been...”
30+ Years Experience
Serving Ajax Area
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Hutchuk's Construction (Hutcon)

Hutchuk's Construction (Hutcon)

(12)
Interior Renovations, Landscape, Demolition
“Thank you Derek for adding this beautiful walkway and front entrance that compliments the stone on the front of my parents home. The fence adds a nice finished look to the driveway side. As always, very professional and quality work. At our own ho...”
Free Initial Consultation
37 Kawartha Ave, Oshawa, ON L1H 3Y7
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Huameiroofing

Huameiroofing

(3)
  • Property
  • Price
“hua mei Roofing did a new roof installation on my property on time and on budget. All process from the quote to to the installation was quick and easy, with good and clear communication via text messages. the price is also very good I would gladly u...”
Free Initial Consultation
In Business Since 2023
3820 Midland Ave Unit, Scarborough, ON M1V 4S9
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Brad Duggans Waterproofing Inc

Brad Duggans Waterproofing Inc

(13)
Interior Waterproofing, Formed Concrete Foundation Waterproofing, Window Wells & Egress Window Wells
“Great service, Great price! Brad and his team are professional, friendly and efficient. I wish all company's were this easy to deal with. They had my leak fixed quicker and cheaper than any other quotes I received. Thanks Brad. Positive Responsivene...”
701 Rossland Rd E Suite 633, Whitby, ON L1N 9K3
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Sierra Stone GTA Rubber Stone

Sierra Stone GTA Rubber Stone

(17)
  • Porch
  • Pool
  • Floor
“Michelle goes above and beyond to accommodate our schedules and works over time to ensure we are satisfied from beginning of a project to the end. We have had our roof deck covered and are planning to use them again for our pool deck soon! Positive R...”
Free Initial Consultation
In Business Since 2023
Serving Ajax Area
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Tri-City Roofing & Waterproofing Inc

Tri-City Roofing & Waterproofing Inc

(6)
Roof Repair, Soffit & Fascia, Seamless Eavestrough
“My parents used them over 10 years ago and they were amazing then. So, when we needed our roof to be done I called them. We recently did our roof and a solar tube which looks amazing. The roofing really looks nice compared to the old style. The t...”
10+ Years Experience
5 Sorrento Dr, Richmond Hill, ON L4C 0J8
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Concrete Markham

Concrete Markham

(1)
Concrete Resurfacing, Concrete Patio, Concrete Pool Deck
“Really glad I got a stamped concrete patio and driveway done. These guys were amazing concrete contractors to work with! Positive Responsiveness, Punctuality, Quality, Professionalism, Value Services Driveway installation, Concrete sidewalk building,...”
Free Initial Consultation
10 Radcliffe Rd, Markham, ON L3R 7X7
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Canadian Sanitary Systems

Canadian Sanitary Systems

(14)
THE Region OF Peel, ON, Halton Region, ON, ST Catharines, ON
“Great job from Ville De Caries & Blair. These guys knew what they were doing and went beyond the call of duty to get the job done and done quickly. Very refreshing to see people with a "can do" approach. I will use this company again. Services Plum...”
Licensed
In Business Since 2018
10 Milner Business Ct #300, Scarborough, ON M1B 3C6
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ASG Construction & Restoration

ASG Construction & Restoration

(4)
“We were very impressed with the work that Gary & his crew did to replace the chipped & broken bricks at the base of the entire back side of our house...beautiful, clean work despite the extreme heat! Then, they followed up by repairing our basement ...”
Licensed
Free Initial Consultation
In Business Since 2012
Serving Ajax Area
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Barakah Waterproofing

Barakah Waterproofing

(7)
“Barakah Waterproofing is a company that specializes in providing waterproofing solutions for various types of buildings, including residential, commercial, and industrial structures. Their services include waterproofing of roofs, walls, basements, an...”
200 Gateway Blvd, Toronto, ON M3C 1B5
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Guardian Seal Ltd

Guardian Seal Ltd

(2)
  • Price
“U will not b disappointed with the price and quality of work. Positive Responsiveness, Punctuality, Quality, Professionalism, Value”
Free Initial Consultation
3583 Sheppard Ave E Suite # 316, Toronto, ON M1T 3K8
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Last King Construction Inc

Last King Construction Inc

(11)
  • Driveway
  • Project
  • Team
“Their team did a great job with attention to detail. The progress of the project was communicated clearly and they were able to complete the work in the discussed time frame. Their work included resurfacing the chimney, waterproofing front porch and ...”
Family Business
Toronto, ON
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Basement Waterproofing Services Near You Cost Estimates

Minimum cost
$620
Maximum cost
$11850
National Average
$4431
$2062
$6698
Average price range is based on 637 cost profiles
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National Average $4431
Minimum cost $620
Maximum cost $11850

Average price range $2062 to $6698 is based on 637 cost profiles.

Why these companies made our list

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