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5-stars reviews
family business
25 years warranty
liability insurance
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Underpinning | Basement Lowering
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Exterior Basement Waterproofing
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Interior Basement Waterproofing
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Walkout | Basement Entrance
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Sump Pump Installation | Government Rebate
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Laneway House Foundation
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Garage Concrete Foundation
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Additions and Extensions Basement House Foundation
WE ARE TURNING Waterproofing DREAMS INTO REALITY
250+
Completed
Projects
30
Skilled
15+
Years of
Experience
5+
Areas of
Services
Experience in construction since 2009
Why Choose Us
We Offer The Best Basement Waterproofing Services In Toronto area
25 years Warranty for our Services
KOME Waterproofing & Underpinning Inc.
Insured And Licensed Toronto Waterproofing Contractor
Kome Waterproofing and Underpinning Inc, fully insured and certified with over 16 years of experience, we offer you a full range of services with up to a 25 year warranty.
Our team is trained and certified to handle a wide range of foundation and basement repair issues, from minor leaks to major structural damage.
Area where our service is:
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Toronto, ON
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Mississauga, ON
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Brampton,ON
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East York, ON
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Etobicoke, ON
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Markham, ON
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Hamilton, ON
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Richmond Hill, ON
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Scarborough, ON
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North York, ON
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Oakville, ON
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Newmarket, ON
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Woodbridge, ON
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Vaughan, ON
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We are careful with the challenges and attentive to the costs
Waterproofing Outside
Homeowners commonly face:
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Basement leaks and flooding – caused by poor drainage or foundation cracks
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Foundation cracks and water seepage – due to soil expansion and contraction
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Mold and mildew growth – from excess moisture buildup
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Weakened foundation walls – from prolonged water exposure
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Poor grading and drainage issues – directing water toward the foundation
Waterproofing Inside
Main Issues with Interior Basement Waterproofing:
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Basement leaks and dampness – caused by hydrostatic pressure and poor drainage
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Mold and mildew growth – due to excess indoor humidity
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Foundation cracks and water seepage – allowing moisture to enter
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Peeling paint and wall damage – from prolonged water exposure
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Musty odors and poor air quality.
Underpinning Basement
The main factors that affect the cost of the Basement Underpinning in Toronto Area depends on:
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Insufficient ceiling height – making the basement feel cramped and limiting its usability
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Weak or aging foundation
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Water infiltration risks – due to deeper excavation and exposure to moisture
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Uneven or shifting floors
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Limited property value – with an unfinished or structurally compromised basement
Walkout Basement
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Creating a walkout or basement entrance comes with several challenges, including:
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Excavation and foundation modifications – requiring precise structural adjustments
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Waterproofing concerns – to prevent leaks and water damage around the entrance
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Proper drainage solutions – to manage rainwater and prevent flooding
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Building code compliance – ensuring safety and legal approval
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Aesthetic integration.
Waterproofing Projects Completed in Toronto Area
See Our Work in Action
Top Wet Basement Services
Why Choose Us
01
Fully licensed and insured
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Professional approach to each stage
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Hard work, responsibility & Top quality
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Guaranteed warranty and reliability
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Innovative & Qualified Team
06
Honesty and friendliness
KOME | Waterproofing & Underpinning Inc.
About Us
KOME Waterproofing & Underpinning Inc. serves as a leading Construction Company in the Toronto area. We’re a team of fully-certified professionals who tackle everything from complex large projects to smaller scale jobs. Fueled by our commitment to excellence, we go the extra mile to make sure clients are completely satisfied with our work.
Frequently Asked Questions
Que 1. What is basement underpinning and when do I need it?
Basement underpinning strengthens your home’s foundation and lowers the basement floor to add height and usable space. It’s ideal if your basement feels too low or you want to turn it into a legal apartment or living area.
Que 2. How does exterior waterproofing protect my home?
Exterior waterproofing seals the exterior walls, preventing water from entering your foundation. We dig around your home, fix cracks, apply waterproof coatings, and install proper drainage to keep your basement dry.
Que 3. What’s the benefit of interior basement waterproofing?
Interior waterproofing manages water after it enters your home. It includes drainage systems, sump pumps, and membranes that guide water out before it causes damage or mold. It’s an affordable solution that helps control moisture and keeps your basement free from water issues.
Que 4. Can you build a walkout basement entrance for my home?
Yes! We design and build safe, code-compliant walkouts that add light, access, and value to your basement. It’s a great solution if you’re creating a rental unit or want a private basement entrance.
Que 5. What does a sump pump do, and should I have one?
A sump pump is a small system that helps protect your basement from flooding. It collects extra water from under your floor and pushes it outside to a safe area away from your house. It’s especially useful during heavy rain or if your home sits in a wet area.
Que 6. Do you pour foundations for laneway houses and garages?
Absolutely. We build strong, lasting foundations for laneway homes, garage additions, and new structures. Our concrete foundation work is precise, up to code, and built to handle Toronto’s weather.
Que 7. Can you handle basement foundations for house additions?
Yes, we specialize in foundation work for home extensions. Whether you're adding rooms or building up, we ensure your basement and structure are fully supported and waterproofed for long-term strength.
Que 8. Why Choose Kome Waterproofing?
With 15 years of experience, we deliver trusted waterproofing and foundation solutions that last. Quality work, honest service, and real results—every time.
What Our Clients Have to Say
Renee Smith,
Oakville
I can’t say enough good things about KOME Waterproofing! From start to finish, they were professional, hardworking, and an absolute pleasure to have around. They tackled the moisture issues in my basement with incredible attention to detail, and you could tell they truly cared about the quality of their work. They were always upbeat, cracking jokes, and somehow made a stressful home repair feel like a breeze. Even the inspector mentioned how impressed he was with their craftsmanship! Now, my basement is completely dry, and I have peace of mind knowing it’s protected for years to come. If you’re looking for a team that delivers top-notch work with a smile, look no further—KOME is the best in the business!
John Rocche,
Hamilton
I hired KOME to waterproof my basement and couldn’t be happier with the results. The team worked efficiently, kept everything clean, and completed the job faster than I expected. They were professional, friendly, and took the time to explain every step of the process. Now, my basement is dry and protected, and I have complete peace of mind. Thank you, KOME, for the excellent work!
Sam M,
Toronto
I had been thinking about lowering my basement for a long time and finally decided to go with KOME after getting several estimates. I’m so glad I chose Misha and his team! They were professional, polite, and truly took pride in their work. The crew was always on time, worked efficiently, and completed everything right on schedule. The quality of their work speaks for itself. Huge thanks to KOME for an amazing job—I’ll definitely be recommending them to family and friends!
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