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St. Catharines · updated August 2026

Foundation Repair Companies in St. Catharines: the standings

20 foundation repair companies serving St. Catharines, ranked by Google rating and review count. The bar shows each one's review volume against the leader. Nobody can pay to move up.

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One labelled spot above these standings, reserved for a claimed St. Catharines business. It never changes the ranking below. Claim your listing to take it.

  1. 1
    Ontario Concrete Raising Ltd.
    ★★★★★ 5 · 259 reviews · St. Catharines · (289) 969-5438
  2. 2
    Harris Waterproofing
    ★★★★★ 4.9 · 109 reviews · St. Catharines · (289) 273-0166
  3. 3
    Proseal Waterproofing & Contracting Inc.
    ★★★★★ 4.7 · 120 reviews · Niagara Falls · (905) 380-7122
  4. 4
    Aquatech Waterproofing
    ★★★★★ 5 · 76 reviews · St. Catharines · (289) 277-5497
  5. 5
    McMillan Waterproofing Niagara
    ★★★★★ 5 · 63 reviews · Niagara Falls · (905) 714-6789
  6. 6
    Foundation Fix Inc.
    ★★★★★ 4.8 · 65 reviews · St. Catharines · (905) 931-0303
  7. 7
    Mitchell's Stucco and Parging
    ★★★★★ 4.7 · 63 reviews · St. Catharines · (289) 929-1032
  8. 8
    Basement Waterproofing Niagara Falls
    ★★★★★ 5 · 43 reviews · Niagara Falls · (647) 372-2854
  9. 9
    CCR Crack injections
    ★★★★★ 5 · 42 reviews · Niagara Falls · (289) 981-3178
  10. 10
    Complete Casa Construction
    ★★★★★ 5 · 32 reviews · St. Catharines · (289) 929-8988
  11. 11
    WET AND HUMID NO MORE Ltd.
    ★★★★★ 4.8 · 31 reviews · Niagara Falls · (905) 329-8766
  12. 12
    Structured Restoration - Niagara
    ★★★★★ 5 · 17 reviews · St. Catharines · (833) 677-5070
  13. 13
    Sfd Concrete
    ★★★★★ 4.8 · 15 reviews · St. Catharines · (905) 650-4966
  14. 14
    Foundation Expert
    ★★★★★ 5 · 12 reviews · St. Catharines · (289) 438-6369
  15. 15
    All-Pro Waterproofing & Excavating Inc
    ★★★★★ 4.5 · 13 reviews · Niagara Falls · (905) 933-6021
  16. 16
    Moffat Foundations & Repair
    ★★★★☆ 4 · 13 reviews · St. Catharines · (289) 783-3233
  17. 17
    Rempel Foundations
    ★★★★☆ 3.7 · 11 reviews · St. Catharines · (905) 732-9311
  18. 18
    Joe Shultz Waterproofing
    ★★★★★ 5 · 4 reviews · St. Catharines · (905) 646-4285
  19. 19
    Classic Waterproofing Unclaimed
    ★★★★★ 5 · 3 reviews · St. Catharines · 063 678 7098
  20. 20
    Rocco Concrete Inc
    ★★★★★ 5 · 2 reviews · St. Catharines · (289) 228-8182
How the standings work. Rank = Google rating × review volume, observed for the St. Catharines area in August 2026. No submissions, no fees, no exceptions — a business moves up by earning reviews, not by paying us. Refreshed monthly.

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