Basement Pros › Oshawa
Ontario · updated October 2026
The Oshawa standings
48 Oshawa businesses across 4 trades, ranked by Google rating and review count from 4,363 reviews. Refreshed monthly. Nobody can pay to move up.
Who leads Oshawa right now
The business holding first place on each Oshawa board, ordered by review volume. Each one earned the spot on reviews alone.
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Aquatech Basement Waterproofing Toronto
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The Mold Guy
#1 of 17 mold removal companies in Oshawa -
Elite Foundations
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Jetflo Drain & Waterproofing
#1 of 19 waterproofing contractors in Oshawa
All Oshawa trades
Every board we rank in Oshawa. Each one lists the businesses serving the town, in order.
- Basement Waterproofing Companies — 19 ranked
- Foundation Repair Companies — 18 ranked
- Mold Removal Companies — 17 ranked
- Waterproofing Contractors — 19 ranked
How the Oshawa standings are built
Rank = Google rating × review volume. We read the public Google listing for every
business serving Oshawa, in October 2026, and order each board by that score. There are no
submissions and no fees. A business moves up by earning reviews. Featured placement is
available to claimed businesses, is always labelled as such, and never changes a rank.
The boards are refreshed monthly, so a business that gains reviews this month moves next month.
Own an Oshawa business?
Your customers already put you on one of these boards. Claiming is free: your description, your services and your correct hours on your profile. The rank stays earned either way.
Claim your listing — free