Best HVAC companies in O'Fallon, MO
The highest-scoring HVAC company in and near O'Fallon is Integrity Aire (score 78, 5.0 stars from 393 Google reviews). 1 company meets the 5 Star standard within 25 km.
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Integrity Aire
InsuredBondedFree estimatesEmergency service78SCORE
We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near O'Fallon qualify, they'll appear here automatically.
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HVAC companies in O'Fallon: quick answers
Who is the highest-rated HVAC company in O'Fallon, MO?
Integrity Aire has the highest 5 Star Score among HVAC companies in and near O'Fallon: 78 out of 100, with a 5.0 star Google rating from 393 reviews.
How many 5 Star HVAC companies serve O'Fallon?
1 HVAC company meets our standard within 25 km of O'Fallon: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 1 have 393 Google reviews between them, averaging 5.00 stars.
How are these HVAC companies ranked?
By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.
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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.