ProScore provides expert-verified guidance on plumbers in Ontario. Compare contractors rated across 10+ data sources and 20+ trust signals including government license databases.

Plumber Red Flags

Expert guidance from Ontario's contractor intelligence platform.

PROVIDERS

2,092

AVG SCORE

59/100

ELITE

Updated May 2026·Reviewed by ProScore Editorial Team

ProScore provides expert-verified information for Ontario homeowners, including current pricing data, licensing requirements, and links to verified contractors scored across 10+ data sources and 20+ trust signals.

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Every contractor on ProScore is scored by the ProScore — a proprietary score from 0 to 100 built from 10+ data sources and 20+ trust signals.