Basement Pros › London
Ontario · updated October 2026
The London standings
47 London businesses across 4 trades, ranked by Google rating and review count from 3,658 reviews. Refreshed monthly. Nobody can pay to move up.
Who leads London right now
The business holding first place on each London board, ordered by review volume. Each one earned the spot on reviews alone.
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London Steam Carpet, Upholstery & Air-Duct Cleaning
#1 of 19 mold removal companies in London -
Advanced Basement Systems
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Advanced Basement Systems
#1 of 19 waterproofing contractors in London
All London trades
Every board we rank in London. Each one lists the businesses serving the town, in order.
- Basement Waterproofing Companies — 19 ranked
- Foundation Repair Companies — 20 ranked
- Mold Removal Companies — 19 ranked
- Waterproofing Contractors — 19 ranked
How the London standings are built
Rank = Google rating × review volume. We read the public Google listing for every
business serving London, 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 a London 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