O Fallon, IL
5 HVAC contractors in O Fallon, Illinois, with Google ratings, hours and websites where the business has them.
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HVAC Contractors
O Fallon, IL4.9(551)Website
HVAC Contractors
O Fallon, IL5.0(201)Website
HVAC Contractors
O Fallon, IL4.1(22)Website
HVAC Contractors
O Fallon, IL
5 of 5 shown. Recommended businesses first, then businesses that have claimed their profile, then Verified ones, then by Google rating and review count. Use Sort to see highest rated first.
Top rated
Ranked by Google rating, then review count. Only businesses rated 4.5 or higher with 5+ Google reviews qualify.
5.0201 Google reviewsVerified
4.9551 Google reviewsVerified
4.9523 Google reviewsVerified
AC repair and maintenance · Furnace repair and installation · Heat pump services
See every hvac contractors in O Fallon sorted by rating · Best of O Fallon across every trade
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5 HVAC contractors serve O Fallon, IL. 3 are rated 4.5 or higher on Google and 1 has a perfect 5.0. 4 have a website. Most common services: AC repair and maintenance, Commercial HVAC, Duct cleaning, Emergency services, Furnace repair and installation, Heat pump services….
Services hvac contractors in O Fallon list on Google
Service names as each business entered them on its Google Business Profile, with how many businesses list each one.
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| HVAC Contractors | IL | U.S. |
|---|---|---|
| Average Google rating (10+ reviews) | 4.74 | 4.69 |
| Median Google reviews | 34 | 25 |
| Reviews for the top quarter | 137+ | 108+ |
| Have a website | 61% | 60.6% |
Businesses listed in our directory, not every business in the market. Updated November 2026. HVAC Contractors industry report · What is a good rating for HVAC contractors? · Best cities for HVAC contractors
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Names and Google ratings, straight from each business's profile.
5 HVAC contractors serve O Fallon, IL. Highest rated (10+ reviews): Cleanstream Drain Cleaning & HVAC (Verified, rated 5.0 on Google from 201 reviews), Heritage Heating & Cooling (Verified, rated 4.9 on Google from 551 reviews) and Home Heating & Cooling (Verified, rated 4.9 on Google from 523 reviews), plus 2 more.
5 HVAC contractors serve O Fallon, Illinois. 3 are rated 4.5 or higher on Google and 1 has a perfect 5.0. 4 have a website. Most common services: AC repair and maintenance, Commercial HVAC, Duct cleaning, Emergency services, Furnace repair and installation, Heat pump services…. ZIP codes covered: 62269.
Heritage Heating & Cooling (551 reviews, rated 4.9), Home Heating & Cooling (523 reviews, rated 4.9) and Cleanstream Drain Cleaning & HVAC (201 reviews, rated 5.0). Review counts are read from each business's Google Business Profile.
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