259 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Union: Logan Services A/C, Heat & Plumbing, CR Score 66/100; 4.8★ from 4,677 Google reviews; open 24/7.
Best for emergencies (open 24/7): Choice Comfort Services, posts 24/7 hours; ranked #2 of 259.
Most-reviewed: Stevenson Service Experts, 6,086 Google reviews at 4.8★, the most of 259 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
259 Union HVAC contractors are ranked here by CR Score, from ten published factors. 100 are open 24/7, 158 open Saturdays and 139 open Sundays, based on posted hours. The median Google rating is 4.8★ across 259 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Logan Services A/C, Heat & Plumbing | 66 | 4.8★ (4,677) | Vandalia, 7 mi away | 24/7 | Overall |
| 2 | Choice Comfort Services | 64 | 4.9★ (1,028) | Vandalia, 6 mi away | 24/7 | Emergencies |
| 3 | One Hour Heating & Air Conditioning® of Dayton | 64 | 5.0★ (281) | Englewood, 1 mi away | 24/7 | — |
| 4 | Thomas & Galbraith Heating, Cooling, Plumbing & Electrical | 63 | 4.8★ (1,431) | Dayton, 8 mi away | 24/7 | — |
| 5 | McAfee Heating, Air Conditioning, and Plumbing | 63 | 4.9★ (3,690) | Kettering, 18 mi away | 24/7 | — |
| 6 | Korrect Plumbing, Heating & Air Conditioning, Inc. | 63 | 4.9★ (2,643) | Dayton, 11 mi away | Sat · Sun · Evenings | — |
| 7 | Stevenson Service Experts | 62 | 4.8★ (6,086) | Beavercreek, 20 mi away | 24/7 | Most reviews |
| 8 | Apex Pros Plumbing, Electrical, Heating and Air | 62 | 4.9★ (1,910) | Dayton, 18 mi away | 24/7 | — |
| 9 | Eco Plumbers, Electricians, and HVAC Technicians | 62 | 4.8★ (3,337) | Dayton, 20 mi away | 24/7 | — |
| 10 | Allied Services, Inc. | 62 | 4.9★ (159) | Clayton, 4 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 4,677 Google reviews, listed on Google as “HVAC contractor”.
Based in Vandalia, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,028 Google reviews, listed on Google as “HVAC contractor”.
Based in Englewood, 1 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 281 Google reviews, listed on Google as “HVAC contractor”.
Based in Dayton, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 1,431 Google reviews, listed on Google as “HVAC contractor”.
Based in Kettering, 18 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 3,690 Google reviews, listed on Google as “HVAC contractor”.
Based in Dayton, 11 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 2,643 Google reviews, listed on Google as “HVAC contractor”.
Based in Beavercreek, 20 mi away
Ranked #7 because of its Google rating and review volume: 4.8★ from 6,086 Google reviews, the most in Union.
Based in Dayton, 18 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,910 Google reviews, listed on Google as “HVAC contractor”.
Based in Dayton, 20 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 3,337 Google reviews, listed on Google as “HVAC contractor”.
Based in Clayton, 4 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 159 Google reviews, listed on Google as “HVAC contractor”.
Based in Beavercreek, 18 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 1,384 Google reviews, listed on Google as “HVAC contractor”.
Based in Clayton, 8 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 465 Google reviews, listed on Google as “HVAC contractor”.
Based in Clayton, 3 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 188 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Moraine, 13 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 834 Google reviews, listed on Google as “HVAC contractor”.
Based in Dayton, 20 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 1,041 Google reviews, listed on Google as “HVAC contractor”.
Based in Eaton, 19 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 1,413 Google reviews, listed on Google as “HVAC contractor”.
Based in Centerville, 20 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 1,691 Google reviews, listed on Google as “HVAC contractor”.
Based in Dayton, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 2,108 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Fairborn, 16 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 1,373 Google reviews, listed on Google as “HVAC contractor”.
Based in Dayton, 12 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 666 Google reviews, listed on Google as “HVAC contractor”.
Based in Piqua, 20 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 549 Google reviews, listed on Google as “HVAC contractor”.
Based in Huber Heights, 9 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 149 Google reviews, listed on Google as “HVAC contractor”.
Based in Huber Heights, 12 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 296 Google reviews, listed on Google as “HVAC contractor”.
Based in Xenia, 21 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 1,335 Google reviews, listed on Google as “HVAC contractor”.
Based in Englewood, 1 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 259 ranked HVAC contractors here; the rest are on their profiles.
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A Squared Mechanical | 5.0★ (2) | 6 mi |
| Apex Mechanical Systems, Inc. | 3.0★ (2) | In Union |
| Arrow Mechanical Services | 5.0★ (2) | 13 mi |
| Carrier Corporation | 4.5★ (2) | 8 mi |
| Commercial Refrigeration Specialists | 5.0★ (2) | 11 mi |
| DanTec, LLC | 5.0★ (4) | 3 mi |
| Design Heating and Cooling | 5.0★ (2) | 15 mi |
| Enervise | 5.0★ (6) | 3 mi |
| Foolproof Electrical And Cooling | 5.0★ (2) | 8 mi |
| H & M Heating and Cooling Inc | 5.0★ (2) | 9 mi |
| Habel & Sons Plumbing & Heating | 3.0★ (2) | 16 mi |
| Howard Heating & Air Conditioning | 5.0★ (2) | 11 mi |
| Joe Logan Hvac | 4.8★ (20) | 8 mi |
| Leveraged Buyers Club | 5.0★ (2) | 10 mi |
| M & S Heating Service Co. Inc. | 5.0★ (2) | 8 mi |
| Morland Heating & AC | 5.0★ (2) | 11 mi |
| Rob's Heating And Cooling | 5.0★ (8) | 1 mi |
| Steven Brackman Heating & Cooling | 5.0★ (2) | 6 mi |
| Tech Pro Construction, LLC | 3.0★ (2) | 11 mi |
| Tog's Heating Cooling | 3.0★ (2) | 17 mi |
National price ranges in USD, not adjusted for Union. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In Ohio, Ohio Construction Industry Licensing Board licenses Commercial HVAC and refrigeration contractor licenses.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
In Ohio, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.
We scored 259 Union HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Union data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |