Best HVAC Contractors in Thunder Bay, Ontario
The most trusted HVAC contractor in Thunder Bay, Ontario is Klīmit Mechanical Ltd, with a ProScore of 64/100.
The most trusted HVAC contractor in Thunder Bay, Ontario is Klīmit Mechanical Ltd, with a ProScore of 64/100. ProScore has verified 5 HVAC contractors in Thunder Bay, scoring each across 10+ data sources and 20+ trust signals. None of the 5 meet the Trusted-tier (65+) threshold yet.
Last updated: June 21, 2026 · Data refreshed daily
How ProScore Ranks HVAC Contractors
Every HVAC contractor in Thunder Bay is evaluated across four pillars: Reputation (ratings across multiple platforms), Verification (government licensing including TSSA 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 →Top Rated HVAC Contractors in Thunder Bay
Browse all hvac contractors in Thunder Bay →Frequently Asked Questions
Who is the best HVAC contractor in Thunder Bay?
Klīmit Mechanical Ltd has the highest ProScore (64/100) among 5 verified hvac contractors in Thunder Bay, Ontario. Rankings are based on ProScore, which evaluates ratings, government licensing (TSSA), WSIB coverage, and AI-analyzed customer sentiment.
How do I find a trustworthy HVAC contractor in Thunder Bay?
Look for hvac contractors with verified TSSA licensing, active WSIB coverage, and consistent ratings across multiple platforms. ProScore aggregates these signals into a single score from 0-100. In Thunder Bay, 0 hvac contractors hold Elite-tier ProScores (80+), 0 are Trusted-tier (65+), and 2 are Good-tier (50+).
Are hvac contractors in Thunder Bay licensed?
HVAC Contractors in Ontario are required to hold TSSA licensing. ProScore verifies this against official TSSA records for every provider in our database. Of the top 5 hvac contractors in Thunder Bay by ProScore, 2 hold verified TSSA credentials and 3 carry active WSIB coverage.
How many verified hvac contractors are in Thunder Bay?
ProScore has verified and scored 5 hvac contractors in Thunder Bay, 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 hvac contractors in Thunder Bay?
Among 5 verified hvac contractors in Thunder Bay, Ontario: 0 are Elite-tier (80+), 0 are Trusted-tier (65+), and 2 are Good-tier (50+). The top 5 average a ProScore of 52/100, with Klīmit Mechanical Ltd leading at 64/100.