Best Plumbers in Union, Ontario
The most trusted plumber in Union, Ontario is Streamline Plumbing, with a ProScore of 74/100.
The most trusted plumber in Union, Ontario is Streamline Plumbing, with a ProScore of 74/100. ProScore has verified 1 plumber in Union, scored across 10+ data sources and 20+ trust signals. 1 of the 1 are Trusted-tier (70+) or higher.
Last updated: May 6, 2026 · Data refreshed daily
Of 1 plumbers in Union: 0 rated Elite (82+), 1 rated Trusted (70+), and 0 rated Good (55+).
How ProScore Ranks Plumbers
Every plumber in Union is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing and WSIB), Transparency (online presence and profile completeness), and Sentiment (AI analysis of customer reviews). The result is a ProScore from 0 to 100.
Read the full methodology →Frequently Asked Questions
Who is the best plumber in Union?
Streamline Plumbing has the highest ProScore (74/100) among 1 verified plumbers in Union, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing, WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy plumber in Union?
Look for plumbers with verified active WSIB coverage, and consistent ratings across multiple platforms. ProScore aggregates these signals into a single score from 0-100. In Union, 0 plumbers hold Elite-tier ProScores (82+), 1 is Trusted-tier (70+), and 0 are Good-tier (55+).
Are plumbers in Union licensed?
Plumbers in Ontario should hold valid business registration and active WSIB workers compensation coverage. ProScore verifies these credentials for every provider. Of the top 1 plumbers in Union by ProScore, 1 carry active WSIB coverage.
How many verified plumbers are in Union?
ProScore has verified and scored 1 plumbers in Union, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Data is refreshed daily.
What's the ProScore distribution among plumbers in Union?
Among 1 verified plumbers in Union, Ontario: 0 are Elite-tier (82+), 1 is Trusted-tier (70+), and 0 are Good-tier (55+). The top 1 average a ProScore of 74/100, with Streamline Plumbing leading at 74/100.