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Thornbury · updated October 2026

Basement Waterproofing Companies in Thornbury: the standings

10 basement waterproofing companies serving Thornbury, 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.

Read the arrows with care on this board. It listed 16 businesses on Sep 6 and lists 10 now. When the number of businesses falls, ranks rise for everyone still listed, whether or not they earned anything. The review counts below are unaffected.

Who leads basement waterproofing companies in Thornbury right now

1. 1

   Aquamaster Basement Waterproofing Barrie

   ★★★★★ 4.9 · 104 reviews · Barrie · (705) 881-8141
   ▲2 0 reviews since Sep 6
2. 2

   Direct Basement Waterproofing Cambridge

   ★★★★★ 5 · 70 reviews · (647) 932-3977
   ▲2 0 reviews since Sep 6
3. 3

   Perimeter Water Solutions Corp.

   ★★★★★ 4.8 · 45 reviews · Meaford · (519) 217-7968
   ▲2 0 reviews since Sep 6
4. 4

   Wet Basement Resolutions

   ★★★★★ 4.7 · 39 reviews · Wasaga Beach · (647) 234-7244
   ▲3 +1 reviews since Sep 6
5. 5

   Simcoe Basement Waterproofing

   ★★★★★ 5 · 20 reviews · Barrie · (705) 230-0057
   ▲4 +7 reviews since Sep 6
6. 6

   Longarm Contracting

   ★★★★★ 4.7 · 15 reviews · Stayner · (705) 441-4631
   ▲6 +1 reviews since Sep 6
7. 7

   Ontario Wet Basement Solutions Inc.

   ★★★★☆ 4.3 · 19 reviews · Barrie · (844) 533-4949
   new 0 reviews since Sep 6
8. 8

   Bay-Mount Service

   ★★★★★ 4.5 · 16 reviews · Thornbury · (519) 599-2024
   ▲3 0 reviews since Sep 6
9. 9

   Dryshield Basement Waterproofing Collingwood

   ★★★★★ 5 · 9 reviews · Collingwood · (249) 660-8065
   ▲4 0 reviews since Sep 6
10. 10

    Basement Waterproofing Collingwood

    ★★★★★ 5 · 8 reviews · Stayner · (647) 558-5751
    new 0 reviews since Sep 6