Basement Pros › London › Waterproofing Contractors

London · updated October 2026

Waterproofing Contractors in London: the standings

19 waterproofing contractors serving London, ranked by Google rating and review count. The bar shows each one's review volume against the leader. Arrows show movement since Sep 6. Nobody can pay to move up.

Featured slot — open

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

Who leads waterproofing contractors in London right now

  1. 1

    Advanced Basement Systems

    ★★★★★ 4.9 · 196 reviews · London · (226) 271-8708
    — +4 reviews since Sep 6
  2. 2

    ROYAL RESTORATION EPOXY FLOORS & CONCRETE RESURFACING

    ★★★★★ 5 · 172 reviews · London · (519) 859-6905
    — +5 reviews since Sep 6
  3. 3

    Best Plumbing and Drainage Contractors

    ★★★★★ 4.8 · 91 reviews · London · (519) 438-6565
    ▲1 +1 reviews since Sep 6
  4. 4

    A1 Waterproofing

    ★★★★★ 4.6 · 99 reviews · London · (519) 495-6060
    ▲1 0 reviews since Sep 6
  5. 5

    Koala Insulation of London

    ★★★★★ 5 · 64 reviews · London · (226) 774-3802
    ▲1 +4 reviews since Sep 6
  6. 6

    Restore, Renovate, Build (formerly Restoration 1 London)

    ★★★★★ 4.8 · 69 reviews · London · (226) 667-9766
    new 0 reviews since Sep 6
  7. 7

    Classic Basement Waterproofing London

    ★★★★★ 4.9 · 50 reviews · London · (646) 698-4279
    ▲5 +26 reviews since Sep 6
  8. 8

    Basement Waterproofing London

    ★★★★★ 5 · 45 reviews · London · (647) 494-4801
    ▼1 0 reviews since Sep 6
  9. 9

    LONDON HOME SERVICES INC

    ★★★★★ 5 · 33 reviews · London · (548) 394-3394
    — 0 reviews since Sep 6
  10. 10

    Ashworth Drainage

    ★★★★★ 4.6 · 35 reviews · London · (519) 660-9375
    — 0 reviews since Sep 6
  11. 11

    London Wisecracks

    ★★★★★ 4.7 · 26 reviews · London · (519) 520-9144
    — 0 reviews since Sep 6
  12. 12

    Aquatech Basement Waterproofing London

    ★★★★★ 5 · 20 reviews · London · (226) 641-0771
    ▲1 0 reviews since Sep 6
  13. 13

    RCC Waterproofing London

    ★★★★★ 4.6 · 26 reviews · London · (519) 488-1406
    ▲1 0 reviews since Sep 6
  14. 14

    Lord’s Mate INC

    ★★★★★ 5 · 16 reviews · London · (519) 701-5507
    ▲1 +1 reviews since Sep 6
  15. 15

    General Restoration Services

    ★★★★★ 5 · 13 reviews · London · (519) 685-9595
    new 0 reviews since Sep 6
  16. 16

    Basement Waterproofing Pros

    ★★★★★ 4.8 · 8 reviews · London · (519) 805-2515
    — 0 reviews since Sep 6
  17. 17

    Basement Waterproofing Solutions

    ★★★★★ 5 · 7 reviews · London · (548) 290-9060
    — +1 reviews since Sep 6
  18. 18

    Stopleak Basement Waterproofing Unclaimed

    ★★★★★ 5 · 5 reviews · London · (519) 661-9424
    — 0 reviews since Sep 6
  19. 19

    AJN Waterproofing Unclaimed

    ★★★★★ 5 · 2 reviews · London · (519) 319-1323
    — 0 reviews since Sep 6
How the standings work. Rank = Google rating × review volume, observed for the London area in October 2026. No submissions, no fees, no exceptions — a business moves up by earning reviews, not by paying us. Refreshed monthly. 8 of 19 changed rank since Sep 6. See this month's movers.

See your name up there?

2 of these 19 listings are still unclaimed — customers notice. Claiming is free: your description, services, and correct hours on your profile. The rank stays earned either way.

Claim your listing — free