Ontario home illustrating basement waterproofing, foundation repair, and drainage — Waterproof Ontario.

    Waterproofing Business Directory

    Find and connect with trusted basement waterproofing professionals in your area.

    Ontario contractor directory overview

    Waterproof Ontario is an independent directory—not a single contractor. Filter by city and service, compare ratings and verification status, then request quotes from multiple licensed pros so scopes and warranties are easier to judge side by side.

    390 contractor listings across Ontario in 73 cities with at least one active profile.

    Use this directory to compare real contractors—not generic articles: filter by city and service type, scan ratings and verification, then request multiple quotes so scopes and warranties are easier to judge side by side. How we verify listings

    How we verify listings

    “Verified” means we confirmed the business belongs on the directory and, when claimed, that an authorized representative controls the listing—not that we inspected every job or endorse every warranty.

    We still recommend comparing written quotes, references, and coverage for your address before you hire—especially for excavation, interior drainage, and large structural work.

    When on, only listings whose services or description mention urgent or emergency response are shown. Confirm availability by phone.
    282 businesses found
    Direct Basement Waterproofing Toronto
    5.0(251 reviews)

    Direct Basement Waterproofing Toronto

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    4 Faversham Crescent, Toronto, ON M9C 3X4, Toronto, Ontario
    Waterproofing service

    Services:

    Waterproofing serviceConcrete contractorConstruction company+1 more
    Flood Tech | Basement Waterproofing, Foundation Leak Repair
    5.0(3 reviews)

    Flood Tech | Basement Waterproofing, Foundation Leak Repair

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    1805 Wilson Ave, North York, ON M9M 1A2, North York, Ontario
    Emergency Waterproofing Toronto | 24 hour Interior & Exterior Foundation Repair Emergency Basement Waterproofing Services | Open now
    Waterproofing service

    Services:

    Waterproofing service
    Wal-Tech Drainage
    5.0(6 reviews)

    Wal-Tech Drainage

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    391 Carroll St W, Strathroy, ON N7G 1B2, Strathroy, Ontario
    Waterproofing service

    Services:

    Waterproofing serviceAssociation / OrganizationGeneral contractor
    TRS Waterproofing & Drainage
    5.0(12 reviews)

    TRS Waterproofing & Drainage

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    8320 ON-3, Maidstone, ON N0R 1K0, Maidstone, Ontario
    TRS Waterproofing in Windsor provides expert basement waterproofing and foundation repair services for leaking wet basements.
    Waterproofing service

    Services:

    Waterproofing service
    Drainex Construction Services Inc.
    5.0(16 reviews)

    Drainex Construction Services Inc.

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    8320 ON-3, Maidstone, ON N0R 1K0, Maidstone, Ontario
    Waterproofing service

    Services:

    Waterproofing serviceConcrete contractorDrainage service+3 more
    Complete Waterproofing
    5.0(16 reviews)

    Complete Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    701 Don Mills Rd., East York, ON M3C 1R8, Toronto, Ontario
    Waterproofing service

    Services:

    Waterproofing service
    Aquaseal Basement Waterproofing Contractors Belleville
    5.0(1 review)

    Aquaseal Basement Waterproofing Contractors Belleville

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    874 Scuttlehole Rd, Belleville, ON K0K 2Y0, Belleville, Ontario
    Waterproofing service

    Services:

    Waterproofing service
    Dry-Rite Basement Waterproofing and Concrete Raising
    5.0(261 reviews)

    Dry-Rite Basement Waterproofing and Concrete Raising

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    700 Talbot Rd, Maidstone, ON N0R 1K0, Maidstone, Ontario
    Windsor waterproofing, slabjacking, and wall reinforcement experts. Dry-rite of Windsor has permanent solutions for wet basements, cracked, and bowed walls.
    Waterproofing service

    Services:

    Waterproofing serviceConcrete contractorFoundation
    Jetflo Drain & Waterproofing
    5.0(24 reviews)

    Jetflo Drain & Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    Toronto, Ontario
    Jetflo is a family-owned and operated business offering waterproofing, sewer line repair, and drain services throughout Toronto, the Greater Toronto Area, and Durham Region. We’re excited to announce that our service area now extends to Hamilton, Niagara Falls, St. Catharines, Kitchener, Barrie, London, and Peterborough.
    Waterproofing service

    Services:

    Waterproofing serviceDrainage service
    Mini x foundation waterproofing
    5.0(8 reviews)

    Mini x foundation waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    233 Station Rd, Smiths Falls, ON K7A 4S4, Smiths Falls, Ontario
    If you’re looking for the best weeping tile replacement, foundation waterproofing & leak repair services in Ottawa, choose Mini X Foundation & Waterproofing.
    Waterproofing service

    Services:

    Waterproofing serviceFoundation
    KP Basements
    5.0(5 reviews)

    KP Basements

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    143 Patteson Ave, Chatham, ON N7M 1T9, Chatham, Ontario
    Waterproofing service

    Services:

    Waterproofing service
    Aquamaster
    5.0(105 reviews)

    Aquamaster

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    199 Thirtieth St, Etobicoke, ON M8W 3C6, Etobicoke, Ontario
    Choose quality. Work with one of the leading basement waterproofing companies in Toronto. Repair wet, damp, or leaky basements. Book a FREE estimate today!
    Waterproofing service

    Services:

    Waterproofing service
    Royal Work Corp Basement Waterproofing
    5.0(36 reviews)

    Royal Work Corp Basement Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    1104 Fewster Dr, Mississauga, ON L4W 1A1, Mississauga, Ontario
    Royal Work Corp offers fast and friendly wet basement waterproofing in Toronto to keep your home basement dry. Voted HomeStars best in 2021!
    Waterproofing service

    Services:

    Waterproofing service
    PRIME Waterproofing
    5.0(136 reviews)

    PRIME Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    3453 Cedar Creek Dr, Mississauga, ON L4Y 2Y2, Mississauga, Ontario
    Waterproofing service

    Services:

    Waterproofing service
    Hillside Waterproofing
    5.0(74 reviews)

    Hillside Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    45 Kyle Crescent, Keswick, ON L4P 3P6, Keswick, Ontario
    Waterproofing service

    Services:

    Waterproofing serviceConcrete contractor
    The Basement Guy Waterproofing
    5.0(1 review)

    The Basement Guy Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    44 Biscayne Blvd, Keswick, ON L4P 3M9, Keswick, Ontario
    Waterproofing service

    Services:

    Waterproofing serviceRecreational vehicle rental agency
    905 leaky basement solutions
    5.0(1 review)

    905 leaky basement solutions

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    12 Riveredge Dr, Keswick, ON L4P 2N9, Keswick, Ontario
    Waterproofing service

    Services:

    Waterproofing service
    Waterproofing PD | Basement Waterproofing Richmond Hill
    5.0(18 reviews)

    Waterproofing PD | Basement Waterproofing Richmond Hill

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    46 Berwick Crescent Unit 96, Richmond Hill, ON L4C 0C3, Richmond Hill, Ontario
    Waterproofing PD offers interior & exterior basement waterproofing Toronto services including basement underpinning & sump pump installation.
    Waterproofing service

    Services:

    Waterproofing service
    Flood Guard | Wet Leaky Basement Waterproofing
    5.0(1 review)

    Flood Guard | Wet Leaky Basement Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    28 Linden St #308, Toronto, ON M4Y 2L2, Toronto, Ontario
    Its important to make sure that your problems like wet basements in Toronto are resolved promptly. Call us now and see the difference!
    Waterproofing service

    Services:

    Waterproofing service
    Quick-Seal Waterproofing
    5.0(1 review)

    Quick-Seal Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    61 Jay St, Brampton, ON L6Z 3V8, Brampton, Ontario
    Quick-Seal Waterproofing has a reputation for providing quality waterproofing services in Brampton, Mississauga, and the GTA. 416-254-0196
    Waterproofing service

    Services:

    Waterproofing service
    Royal Work Waterproofing
    5.0(41 reviews)

    Royal Work Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    51 Greenbriar Rd, Brampton, ON L6S 1V8, Brampton, Ontario
    Royal Work Corp offers fast and friendly wet basement waterproofing in Toronto to keep your home basement dry. Voted HomeStars best in 2021!
    Waterproofing service

    Services:

    Waterproofing serviceWater damage restoration service
    Direct Waterproofing Toronto
    5.0(82 reviews)

    Direct Waterproofing Toronto

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    2 St Clair Ave W 18th Floor, Toronto, ON M4V 1L5, Toronto, Ontario
    Waterproofing service

    Services:

    Waterproofing serviceConcrete contractorConstruction company+1 more
    Canada Waterproofers
    5.0(287 reviews)

    Canada Waterproofers

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    3410 Semenyk Ct #9, Mississauga, ON L5C 4P8, Mississauga, Ontario
    Wet Basement Waterproofing Toronto & GTA. We Fix Wet Leaky Basements, Install sump pumps & backflow preventers, Plumbing & Underpinning!
    Waterproofing service

    Services:

    Waterproofing serviceConcrete contractorDrainage service+2 more
    Rainbow Solutions Inc.
    5.0(14 reviews)

    Rainbow Solutions Inc.

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    75 Perth Ave, Toronto, ON M6R 2C1, Toronto, Ontario
    Waterproofing service

    Services:

    Waterproofing service
    All Dry Waterproofing Ltd. - Basement Specialists
    5.0(113 reviews)

    All Dry Waterproofing Ltd. - Basement Specialists

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    207 St Lawrence Dr, Welland, ON L3C 7H6, Welland, Ontario
    Described as Welland's basement waterproofing specialist, All Dry Waterproofing serves the Greater Niagara Region, from St. Catherines to Niagara Falls to Port Colborne.
    Waterproofing service

    Services:

    Waterproofing service

    All city service guides

    Every municipality below links to basement waterproofing, foundation repair, exterior systems, sump pumps, drainage, and general waterproofing guides for that community, plus a localized compare-quotes form.

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    Browse all contractor profiles (311)

    Complete list of published listing pages. Use filters above to narrow by city or service.

    Resources & guides

    Practical articles on waterproofing, foundations, and moisture—written for Ontario homeowners.

    All guides