HVAC Contractors in Markham
25 HVAC contractors in Markham with multi-platform trust scores.
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Who is the best HVAC contractor in Markham, Ontario?
The most trusted HVAC contractor in Markham, Ontario is Eco Star Home Services Co., with a ProScore of 79/100. ProScore has scored 25 HVAC contractors in Markham across 10+ data sources and 20+ trust signals. 4 of the 25 are Trusted-tier (70+) or higher.
Trust scores last computed between September 2, 2026 and September 19, 2026.
Which HVAC contractors in Markham score highest?
All 25 scored hvac contractors in Markham, ranked by ProScore.
ProScore scores 25 hvac contractors in Markham, and their average score is 62 out of 100. 4 of them reach the Trusted threshold of 70 or higher. 6 are registered with WSIB and 4 hold a TSSA licence. 25 have Google reviews on file — 5,570 reviews in total, and 5 carry a Better Business Bureau rating.
Eco Star Home Services Co. ranks 1st of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 79 out of 100 (Trusted tier). Its score draws on 495 Google reviews averaging 4.7 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB and licensed by the TSSA.
Air Leaders Inc. ranks 2nd of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 76 out of 100 (Trusted tier). Its score draws on 146 Google reviews averaging 4.9 out of 5. Public records show it is registered with WSIB and licensed by the TSSA.
Constant Home Comfort ranks 3rd of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 583 Google reviews averaging 4.8 out of 5, 449 reviews on other major review platforms and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.
Service Express HVAC ranks 4th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 70 out of 100 (Trusted tier). Its score draws on 384 Google reviews averaging 4.9 out of 5. Public records show it is licensed by the TSSA.
Aire One Heating & Cooling ranks 5th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 69 out of 100 (Good tier). Its score draws on 486 Google reviews averaging 4.8 out of 5, 1,294 reviews on other major review platforms and a Better Business Bureau rating of A+.
High Efficiency Cooling & Heating Inc. ranks 6th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 68 out of 100 (Good tier). Its score draws on 1,321 Google reviews averaging 4.8 out of 5. Public records show it is registered with WSIB.
Imperial Energy ranks 7th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 67 out of 100 (Good tier). Its score draws on 123 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+. Public records show it is licensed by the TSSA.
Hargrave Heating & Air Conditioning ranks 8th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 64 out of 100 (Good tier). Its score draws on 370 Google reviews averaging 4.9 out of 5. Public records show it is registered with WSIB.
HVAC Near Me ranks 9th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 63 out of 100 (Good tier). Its score draws on 83 Google reviews averaging 4.9 out of 5 and 14 reviews on other major review platforms.
Markham Heating & Air Conditioning ranks 10th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 62 out of 100 (Good tier). Its score draws on 65 Google reviews averaging 4.9 out of 5.
Super Green HVAC ranks 11th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 62 out of 100 (Good tier). Its score draws on 90 Google reviews averaging 4.9 out of 5.
Spring Home Heating & Cooling ranks 12th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 61 out of 100 (Good tier). Its score draws on 244 Google reviews averaging 4.7 out of 5 and a Better Business Bureau rating of A+.
City Energy Heating & Air Conditioning Markham ranks 13th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 60 out of 100 (Good tier). Its score draws on 102 Google reviews averaging 4.9 out of 5.
For Saving Home Service | HVAC | AC | Furance Services ranks 14th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 60 out of 100 (Good tier). Its score draws on 258 Google reviews averaging 4.8 out of 5.
Home Trade Standards - Condo HVAC Specialists ranks 15th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 60 out of 100 (Good tier). Its score draws on 30 Google reviews averaging 5.0 out of 5. Its ProScore has risen since the previous recompute.
Pinewood Heating & Air Conditioning ranks 16th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 60 out of 100 (Good tier). Its score draws on 235 Google reviews averaging 4.8 out of 5.
Royal Air Solutions ranks 17th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 60 out of 100 (Good tier). Its score draws on 271 Google reviews averaging 5.0 out of 5.
Genie Heating and Cooling Inc ranks 18th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 59 out of 100 (Good tier). Its score draws on 13 Google reviews averaging 5.0 out of 5 and 16 reviews on other major review platforms.
Eco Mechanical ranks 19th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 57 out of 100 (Good tier). Its score draws on 26 Google reviews averaging 5.0 out of 5.
Blue Leaf Home Services ranks 20th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 56 out of 100 (Good tier). Its score draws on 40 Google reviews averaging 5.0 out of 5.
HVAC BOSS ranks 21st of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 56 out of 100 (Good tier). Its score draws on 29 Google reviews averaging 5.0 out of 5. Its ProScore has risen since the previous recompute.
HVAC Smart Solution ranks 22nd of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 56 out of 100 (Good tier). Its score draws on 37 Google reviews averaging 5.0 out of 5 and 93 reviews on other major review platforms.
TRI-AIR Systems ranks 23rd of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 55 out of 100 (Good tier). Its score draws on 32 Google reviews averaging 4.3 out of 5. Public records show it is registered with WSIB.
NT Mechanical - HVAC Licensed Contractors ranks 24th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 52 out of 100 (Basic tier). Its score draws on 23 Google reviews averaging 5.0 out of 5.
Mersey Heating & Air Conditioning ranks 25th of the 25 hvac contractors ProScore scores in Markham, holding a ProScore of 51 out of 100 (Basic tier). Its score draws on 84 Google reviews averaging 4.6 out of 5.
Of 25 hvac contractors in Markham: 0 rated Elite (81+), 4 rated Trusted (70+), and 19 rated Good (54+).
How is an HVAC contractor's ProScore calculated?
Every HVAC contractor in Markham 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 →Who are the top 3 HVAC contractors in Markham?
Browse all hvac contractors in Markham →What else should I check before hiring hvac contractors in Markham?
Frequently Asked Questions
Who is the best HVAC contractor in Markham?
Eco Star Home Services Co. has the highest ProScore (79/100) among 25 hvac contractors in Markham, 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 Markham?
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 Markham, 0 hvac contractors hold Elite-tier ProScores (81+), 4 are Trusted-tier (70+), and 19 are Good-tier (54+).
Are hvac contractors in Markham 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 25 hvac contractors in Markham by ProScore, 4 hold verified TSSA credentials and 6 carry active WSIB coverage.
How many hvac contractors has ProScore scored in Markham?
ProScore has scored 25 hvac contractors in Markham, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed between September 2, 2026 and September 19, 2026.
What's the ProScore distribution among hvac contractors in Markham?
Among 25 hvac contractors in Markham, Ontario: 0 are Elite-tier (81+), 4 are Trusted-tier (70+), and 19 are Good-tier (54+). The top 25 average a ProScore of 62/100, with Eco Star Home Services Co. leading at 79/100.