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HVAC Contractors in Greater Sudbury

2 HVAC contractors in Greater Sudbury with multi-platform trust scores.

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Who is the best HVAC contractor in Greater Sudbury, Ontario?

The highest-scoring HVAC contractors in Greater Sudbury on ProScore are Reliance Heating, Air Conditioning & Plumbing (72/100) and Kore HVAC Services (63/100). ProScore has scored 2 HVAC contractors in Greater Sudbury across 10+ data sources and 20+ trust signals. 1 of the 2 are Trusted-tier (70+) or higher.

Trust scores last computed October 13, 2026.

Which HVAC contractors in Greater Sudbury score highest?

All 2 scored hvac contractors in Greater Sudbury, ranked by ProScore.

ProScore scores 2 hvac contractors in Greater Sudbury, and their average score is 68 out of 100. 1 of them reaches the Trusted threshold of 70 or higher. 1 is registered with WSIB. 2 have Google reviews on file — 5,022 reviews in total, and 2 carry a Better Business Bureau rating.

1
72
Reliance Heating, Air Conditioning & PlumbingTrusted
Greater Sudbury|★4.8
4996 reviews

Reliance Heating, Air Conditioning & Plumbing operates 24/7 in Greater Sudbury, handling HVAC and plumbing work on site by appointment.

Reliance Heating, Air Conditioning & Plumbing ranks 1st of the 2 hvac contractors ProScore scores in Greater Sudbury, holding a ProScore of 72 out of 100 (Trusted tier). Its score draws on 4,996 Google reviews averaging 4.8 out of 5 and a Better Business Bureau rating of A+.

2
63
Kore HVAC ServicesGood
Greater Sudbury|★5.0
WSIB Verified26 reviews

Kore HVAC Services provides HVAC work in Greater Sudbury, Ontario, and operates during weekday hours.

Kore HVAC Services ranks 2nd of the 2 hvac contractors ProScore scores in Greater Sudbury, holding a ProScore of 63 out of 100 (Good tier). Its score draws on 26 Google reviews averaging 5.0 out of 5 and a Better Business Bureau rating of A+. Public records show it is registered with WSIB.

How is an HVAC contractor's ProScore calculated?

Every HVAC contractor in Greater Sudbury 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 Greater Sudbury?

72
Reliance Heating, Air Conditioning & PlumbingTrusted
63
Kore HVAC ServicesGood
Browse all hvac contractors in Greater Sudbury →

What else should I check before hiring hvac contractors in Greater Sudbury?

All HVAC Contractors in Ontario →HVAC Contractors in Greater Sudbury — full list →HVAC Contractors cost guide →How to hire hvac contractors →

Frequently Asked Questions

Who is the best HVAC contractor in Greater Sudbury?

Reliance Heating, Air Conditioning & Plumbing has the highest ProScore (72/100) among 2 HVAC contractors in Greater Sudbury, 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 Greater Sudbury?

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 Greater Sudbury, 0 hvac contractors hold Elite-tier ProScores (81+), 1 is Trusted-tier (70+), and 1 is Good-tier (54+).

Are hvac contractors in Greater Sudbury licensed?

Gas and fuel work in Ontario must be done by a TSSA-registered contractor using certified technicians. Ask for the registration number and check it with the TSSA. Of the top 2 hvac contractors in Greater Sudbury by ProScore, 1 is registered with WSIB according to ProScore’s records.

How many hvac contractors has ProScore scored in Greater Sudbury?

ProScore has scored 2 hvac contractors in Greater Sudbury, Ontario. Each provider is evaluated using 10+ data sources, 20+ trust signals, and AI-analyzed customer reviews. Trust scores last computed October 13, 2026.

What's the ProScore distribution among hvac contractors in Greater Sudbury?

Among 2 hvac contractors in Greater Sudbury, Ontario: 0 are Elite-tier (81+), 1 is Trusted-tier (70+), and 1 is Good-tier (54+). Together they average a ProScore of 68/100, with Reliance Heating, Air Conditioning & Plumbing leading at 72/100.

Other trades in Greater Sudbury

Other trades with a ProScore page in Greater Sudbury, with the number of scored pros in each.

All contractors in Greater Sudbury →