Best HVAC Contractors in Mississauga, Ontario
The most trusted HVAC contractor in Mississauga, Ontario is 365 heating cooling & Water inc, with a ProScore of 78/100.
The most trusted HVAC contractor in Mississauga, Ontario is 365 heating cooling & Water inc, with a ProScore of 78/100. ProScore has verified 103 HVAC contractors in Mississauga, scoring each across 10+ data sources and 20+ trust signals. 5 of the 103 are Trusted-tier (70+) or higher.
Last updated: May 6, 2026 · Data refreshed daily
Of 103 hvac contractors in Mississauga: 0 rated Elite (82+), 10 rated Trusted (70+), and 54 rated Good (55+).
How ProScore Ranks HVAC Contractors
Every HVAC contractor in Mississauga 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 Mississauga
Frequently Asked Questions
Who is the best HVAC contractor in Mississauga?
365 heating cooling & Water inc has the highest ProScore (78/100) among 103 verified hvac contractors in Mississauga, 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 Mississauga?
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 Mississauga, 0 hvac contractors hold Elite-tier ProScores (82+), 10 are Trusted-tier (70+), and 54 are Good-tier (55+).
Are hvac contractors in Mississauga 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 Mississauga by ProScore, 5 hold verified TSSA credentials and 4 carry active WSIB coverage.
How many verified hvac contractors are in Mississauga?
ProScore has verified and scored 103 hvac contractors in Mississauga, 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 Mississauga?
Among 103 verified hvac contractors in Mississauga, Ontario: 0 are Elite-tier (82+), 10 are Trusted-tier (70+), and 54 are Good-tier (55+). The top 5 average a ProScore of 77/100, with 365 heating cooling & Water inc leading at 78/100.