414 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Union City: Reliable Heating & Air, Plumbing and Electrical - Fayetteville, CR Score 65/100; 4.8★ from 4,184 Google reviews; open 24/7.
Best for emergencies (open 24/7): Assured Comfort Heating, Air, Plumbing, posts 24/7 hours; ranked #2 of 414.
Most-reviewed: Coolray Heating & Air Conditioning, 5,715 Google reviews at 4.8★, the most of 414 ranked; ranked #16.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
414 Union City HVAC contractors are ranked here by CR Score, from ten published factors. 131 are open 24/7, 302 open Saturdays and 201 open Sundays, based on posted hours. The median Google rating is 4.9★ across 414 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Reliable Heating & Air, Plumbing and Electrical - Fayetteville | 65 | 4.8★ (4,184) | Fayetteville, 8 mi away | 24/7 | Overall |
| 2 | Assured Comfort Heating, Air, Plumbing | 65 | 4.8★ (3,674) | Douglasville, 9 mi away | 24/7 | Emergencies |
| 3 | All Stars Heating and Air | 64 | 4.9★ (252) | Union City | 24/7 | — |
| 4 | E. Dennis Heating, Cooling, Plumbing & Electrical | 63 | 4.9★ (2,126) | Peachtree City, 14 mi away | 24/7 | — |
| 5 | Trinity Air Heating & Air Conditioning | 63 | 4.9★ (2,677) | Peachtree City, 15 mi away | 24/7 | — |
| 6 | Moncrief Heating & Air Conditioning | 63 | 4.8★ (3,152) | Atlanta, 16 mi away | 24/7 | — |
| 7 | Estes Services | 62 | 4.9★ (4,617) | Atlanta, 9 mi away | Sat · Evenings | — |
| 8 | Hammond Services | Heating & Air, Plumbing, Electrical | 62 | 5.0★ (895) | Stockbridge, 16 mi away | 24/7 | — |
| 9 | Essential Heating & Air Conditioning, Inc. | 62 | 4.8★ (267) | Atlanta, 4 mi away | 24/7 | — |
| 10 | Walk On Air | 62 | 5.0★ (335) | Fayetteville, 11 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 in Union City
Based in Fayetteville, 8 mi away
Ranked #1 because of its Google rating and trade focus: 4.8★ from 4,184 Google reviews, listed on Google as “HVAC contractor”.
Based in Douglasville, 9 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 3,674 Google reviews, listed on Google as “HVAC contractor”.
Based in Union City
Ranked #3 because of its Google rating and trade focus: 4.9★ from 252 Google reviews, listed on Google as “Heating contractor”.
Based in Peachtree City, 14 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 2,126 Google reviews, listed on Google as “HVAC contractor”.
Based in Peachtree City, 15 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 2,677 Google reviews, listed on Google as “HVAC contractor”.
Based in Atlanta, 16 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 3,152 Google reviews, listed on Google as “HVAC contractor”.
Based in Atlanta, 9 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 4,617 Google reviews, listed on Google as “HVAC contractor”.
Based in Stockbridge, 16 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 895 Google reviews, listed on Google as “HVAC contractor”.
Based in Atlanta, 4 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 267 Google reviews, listed on Google as “HVAC contractor”.
Based in Fayetteville, 11 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 335 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 25 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 4,846 Google reviews, listed on Google as “HVAC contractor”.
Based in Morrow, 11 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 605 Google reviews, listed on Google as “HVAC contractor”.
Based in Villa Rica, 19 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,371 Google reviews, listed on Google as “HVAC contractor”.
Based in Fayetteville, 12 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 914 Google reviews, listed on Google as “HVAC contractor”.
Based in Newnan, 8 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 337 Google reviews, listed on Google as “HVAC contractor”.
Based in Newnan, 21 mi away
Ranked #16 because of its Google rating and review volume: 4.8★ from 5,715 Google reviews, the most in Union City.
Based in Douglasville, 16 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 493 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Druid Hills, 4 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 138 Google reviews, listed on Google as “HVAC contractor”.
Based in Austell, 17 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 435 Google reviews, listed on Google as “HVAC contractor”.
Based in Newnan, 20 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 1,952 Google reviews, listed on Google as “HVAC contractor”.
Based in Stockbridge, 20 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 506 Google reviews, listed on Google as “Furnace repair service”.
Based in Marietta, 23 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 1,194 Google reviews, listed on Google as “HVAC contractor”.
Based in Riverdale, 11 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 98 Google reviews, listed on Google as “HVAC contractor”.
Based in Fayetteville, 11 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 175 Google reviews, listed on Google as “HVAC contractor”.
Based in Atlanta, 24 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 508 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 414 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 |
|---|---|---|
| A1 Tech HVAC/R | 5.0★ (22) | 14 mi |
| Airstat Heating & Cooling | 5.0★ (2) | 13 mi |
| Buchannon Mechanical | In Union City | |
| C.B's Heating and Air Conditioning, LLC. | 4.8★ (38) | 16 mi |
| Cooling Parts Southeast | 4.0★ (2) | 8 mi |
| EME Construction | 5.0★ (2) | 18 mi |
| Evans Heating and Air | 5.0★ (141) | 24 mi |
| GAR Inc., Heating & Cooling | 4.8★ (62) | 17 mi |
| H&A MECHANICAL SERVICE | 5.0★ (3) | In Union City |
| KC A/C & Heat | 5.0★ (2) | 16 mi |
| LBC Service | 3.0★ (2) | 7 mi |
| Lee's Prestige HVAC & Plumbing | 4.9★ (45) | 15 mi |
| Locklear Service Company, LLC | 5.0★ (2) | 14 mi |
| Magho HVAC, LLC | 5.0★ (2) | 9 mi |
| On Point Maintenance INC | 5.0★ (1) | In Union City |
| Precision cooling & heating LLC | 5.0★ (58) | 18 mi |
| Reginald O. Lawrence Services | 4.2★ (10) | 7 mi |
| Royalty Heating & Air Conditioning | 4.3★ (179) | 13 mi |
| Shepherd's Home Repair | 4.0★ (2) | 15 mi |
| Turner Heating & Air Conditioning | 3.5★ (2) | In Union City |
National price ranges in USD, not adjusted for Union City. 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 Georgia, Georgia State Construction Industry Licensing Board licenses Conditioned air contractor licenses (Division of Conditioned Air Contractors).
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 Georgia, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.
We scored 414 Union City 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 City 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 |