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Top pick
1. Air Support Heating & AC Repair
8912 Stone Green Way Unit 3, Louisville, KY 40220, USA
Highest score in Louisville: 5.0 stars from 519 reviews.
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2. After Hours Heating & Air
802 Zoneton Rd, Shepherdsville, KY 40165, USA
5.0 stars from 373 reviews, 0.2 stars above the Louisville average of 4.8.
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3. Airtron Heating & Air Conditioning
471 Roberts Ave, Louisville, KY 40214, USA
5.0 stars from 264 reviews, 0.2 stars above the Louisville average of 4.8.
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4. Cool Dog HVAC
4223 Produce Rd, Louisville, KY 40218, USA
5.0 stars from 255 reviews, 0.2 stars above the Louisville average of 4.8.
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5. Ken J Buehner & Son
1514 W Main St, Louisville, KY 40203, USA
5.0 stars from 248 reviews, 0.2 stars above the Louisville average of 4.8.
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6. Energy Control Heating & Air
251 Terry Blvd, Louisville, KY 40229, USA
5.0 stars from 204 reviews, 0.2 stars above the Louisville average of 4.8.
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7. Maeser Master Services
11101 Electron Dr, Louisville, KY 40299, USA
Most reviewed HVAC company on this list, with 5,841 reviews at 4.9 stars.
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8. One Choice Mechanical
8611 National Tpke, Fairdale, KY 40118, USA
4.9 stars from 1,278 reviews, 0.1 stars above the Louisville average of 4.8.
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9. 5 Star Comfort Heating & Air
3904 S 3rd St, Louisville, KY 40214, USA
5.0 stars from 111 reviews, 0.2 stars above the Louisville average of 4.8.
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10. Allgeier Air
804 N English Station Rd, Louisville, KY 40223, USA
4.9 stars from 925 reviews, 0.1 stars above the Louisville average of 4.8.
Ratings and review counts: Google Maps.
At a glance
| # | HVAC company | Rating | Reviews |
|---|---|---|---|
| 1 | Air Support Heating & AC Repair | 5.0 | 519 |
| 2 | After Hours Heating & Air | 5.0 | 373 |
| 3 | Airtron Heating & Air Conditioning | 5.0 | 264 |
| 4 | Cool Dog HVAC | 5.0 | 255 |
| 5 | Ken J Buehner & Son | 5.0 | 248 |
| 6 | Energy Control Heating & Air | 5.0 | 204 |
| 7 | Maeser Master Services | 4.9 | 5,841 |
| 8 | One Choice Mechanical | 4.9 | 1,278 |
| 9 | 5 Star Comfort Heating & Air | 5.0 | 111 |
| 10 | Allgeier Air | 4.9 | 925 |
How we rank
Each HVAC company gets a review-weighted rating: businesses with few reviews are pulled toward the Louisville average of 4.8 stars, so a perfect score from a handful of reviews can't outrank a strong score from hundreds. No business pays for its position. Full method.
Questions
How were these hvac companies in Louisville chosen?
We scored 55 Louisville hvac companies with at least 20 reviews, using their rating weighted by review count (64,716 reviews in total). The 10 highest scores are listed.
Can a business pay to be on this list?
No. Positions come only from the published formula. A business can't pay to be added, moved up, or to have a competitor removed.
How often is this list updated?
About every 30 days. This version uses data collected on October 20, 2026.
Why isn't a HVAC company I know listed?
It may have fewer than 20 reviews, or its review-weighted score was below the top 10. Scores change as new reviews come in.