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

    Basement Waterproofing Scarborough

    An East Toronto decision guide—bluffs geology, creek corridors, inland clay grids, and how to compare waterproofing quotes without a brand pitch.

    Reviewed by Waterproof Ontario editorial team · . Figures are planning ranges, not quotes—confirm scope and price in writing with licensed contractors.

    Contractors in our directory — Scarborough

    Listings are pre-filtered to Scarborough. Clear the city filter or browse all contractors to widen results.

    When on, only listings whose services or description mention urgent or emergency response are shown. Confirm availability by phone.
    Scarborough
    8 businesses foundin Scarborough
    Aquatech Waterproofing
    5.0(95 reviews)

    Aquatech Waterproofing

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    12 Winter Ave, Scarborough, ON M1K 4L8, Scarborough, Ontario
    Choose Aquatech Basement Waterproofing, Toronto's trusted basement waterproofing leader, for effective solutions to wet basements, foundation cracks, and more. Lifetime warranty available.
    Waterproofing service

    Services:

    Waterproofing serviceConcrete contractorConstruction company
    Torrent Waterproofing Inc.
    5.0(1 review)

    Torrent Waterproofing Inc.

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    20 Malley Rd, Scarborough, ON M1L 2E2, Scarborough, Ontario
    Torrent Waterproofing is committed to surpassing our customers' expectations by offering exemplary service while adhering to strict timelines, to ultimately build lasting relationships and continued loyalty within the Industrial, Commercial and Institutional Community.
    Waterproofing service

    Services:

    Waterproofing service
    Maple Leaf Construction
    5.0(19 reviews)

    Maple Leaf Construction

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    44 Crockford Blvd Unit 4, Scarborough, ON M1R 3C3, Scarborough, Ontario
    demolition.underpinning.waterproofing.restoration
    Waterproofing service

    Services:

    Waterproofing serviceBuilding restoration serviceWater damage restoration service
    FloodMasters Inc
    4.9(8 reviews)

    FloodMasters Inc

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    70 Weybright Ct Unit 3a, Scarborough, ON M1S 4E4, Scarborough, Ontario
    FloodMasters is a water damage restorations company providing emergency cleanup & restoration services in Toronto, the GTA & surrounding areas.
    Water damage restoration service

    Services:

    Water damage restoration serviceBuilding restoration serviceFire damage restoration service
    RCC Waterproofing Scarborough
    0.0(0 reviews)

    RCC Waterproofing Scarborough

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    60 Sinnott Rd, Scarborough, ON M1L 4M7, Scarborough, Ontario
    Waterproofing service

    Services:

    Waterproofing serviceWater damage restoration service
    Ryan's Waterproofing and Underpinning
    0.0(0 reviews)

    Ryan's Waterproofing and Underpinning

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    27 Chicory Ln, Scarborough, ON M1X 2E6, Scarborough, Ontario
    Water damage restoration service

    Services:

    Water damage restoration serviceConcrete contractorFoundation+1 more
    ConstructionJulius Waterproofing Company in Toronto
    0.0(0 reviews)

    ConstructionJulius Waterproofing Company in Toronto

    Verified: we confirmed this listing and claim when applicable. Not a guarantee of every job—compare written quotes.
    550 Brimorton Dr Unit, Scarborough, ON M1H 2G1, Scarborough, Ontario
    Shiatsu et aromathérapie par Marc Seigyo Viellard à Paris et Reims Bazancourt Praticien certifié pour des massages détentes et rééquilibrages énergétiques. Il vous reçoit ou se déplace
    Waterproofing service

    Services:

    Waterproofing serviceDemolition contractorLandscaper
    Capital Basement Waterproofing Scarborough
    0.0(0 reviews)

    Capital Basement Waterproofing Scarborough

    2900 Eglinton Ave E, Scarborough, ON M1J 2E4, Scarborough, Ontario
    Waterproofing service

    Services:

    Waterproofing service

    Waterproofing in Scarborough

    Ravine and tableland microclimates differ within kilometres. Spring melt plus rain on frozen ground drives many first-time seepage calls in March and April.

    Soils & geology: Scarborough Bluffs areas involve engineered slopes and sensitive geology; inland pockets carry dense clay till. Never assume one soil story for the whole district.

    Drainage & grading: City storm sewers and private catch basins need clearing before blaming the foundation. Interlot drainage easements show up on older surveys.

    Permits & inspections: Toronto building and TRCA interests may intersect for work near the bluffs or ravines—confirm requirements early.

    2026 cost ranges in Scarborough

    • Interior drainage / sump: $3,800–$10,000
    • Exterior waterproofing: $9,500–$21,000

    Bluffs-adjacent and ravine lots may need extra discharge planning and conservation clearances before exterior digs.

    Ontario 2026 cost hub & calculator

    8 contractors in our directory

    Browse vetted listings serving Scarborough, compare services and reviews, and request multiple quotes.

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    How to decide on basement waterproofing in Scarborough

    Waterproof Ontario publishes this page so homeowners can choose a method and vet contractors—we do not install waterproofing ourselves. Match the fix to the failure: bluffs groundwater, creek-corridor runoff, and inland weeping-tile failure each need different scopes.

    Ravine and tableland microclimates differ within kilometres. Spring melt plus rain on frozen ground drives many first-time seepage calls in March and April.

    Soils and drainage

    Scarborough Bluffs areas involve engineered slopes and sensitive geology; inland pockets carry dense clay till. Never assume one soil story for the whole district.

    City storm sewers and private catch basins need clearing before blaming the foundation. Interlot drainage easements show up on older surveys.

    Bluffs-adjacent streets (Guildwood, Cliffside, Birchcliffe) may involve TRCA oversight and slope-sensitive digs; Highland Creek and Rouge corridors concentrate runoff and sandier lenses; Agincourt, Malvern, and inland post-war grids behave more like central GTA clay belts with aging weeping tile. District-wide stereotypes miss these contrasts.

    Housing stock

    Split-levels, bungalows, and townhouse rows each show characteristic leak points: stairwell bulkheads, shared walls, and garage slabs.

    Permits and conservation

    Toronto building and TRCA interests may intersect for work near the bluffs or ravines—confirm requirements early.

    Comparing quotes in East Toronto

    Ask every bidder to list method, discharge plan, warranty, and exclusions. Cross-check prices against the Ontario cost hub. For broader GTA context, see the GTA regional guide.

    Sources

    Frequently asked questions — Scarborough basement waterproofing

    Compare Scarborough contractors next

    Browse the listings on this page, then request matching written scopes. Prefer a clear water-path diagnosis over the cheapest headline number.

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    Resources & guides

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

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