Best HVAC companies in Union City, GA

The highest-scoring HVAC company in and near Union City is Estes Services (score 90, 4.9 stars from 5,140 Google reviews). 19 companies meet the 5 Star standard within about 16 miles.

Last updated Nov 1, 2026How we rank
  1. 1

    Estes Services

    4.9 · 5,140 Google reviewsAtlanta, GA77 years in business

    Estes Services is a family-owned HVAC, plumbing, and electrical company serving Atlanta and the greater Metro Atlanta area. Founded in 1949, the business has remained locally owned for three generations. Its services…

    Financing available
    90SCORE
  2. 2

    Hammond Services

    4.9 · 1,521 Google reviewsAustell, GA47 years in business

    Hammond Services provides plumbing, heating, air conditioning, electrical, sewer and drain, and indoor air quality work across South Metro and West Metro Atlanta. The company has served the region since 1979. Its heat…

    Emergency service
    88SCORE
  3. 3

    Reliable Heating & Air, Plumbing and Electrical

    4.8 · 4,684 Google reviewsFayetteville, GA
    79SCORE
  4. 4

    Assured Comfort Heating, Air & Plumbing

    4.8 · 4,119 Google reviewsDouglasville, GA
    78SCORE
  5. 5

    O'Callaghan Heating & Air Conditioning

    4.9 · 659 Google reviewsAtlanta, GA
    78SCORE
  6. 6

    Atlanta Air Pro

    4.9 · 636 Google reviewsAtlanta, GA
    77SCORE
  7. 7

    Dynamic Heating & Air LLC

    5.0 · 139 Google reviews
    74SCORE
  8. 8

    Wade Heating & Air Conditioning

    4.9 · 236 Google reviewsAustell, GA
    73SCORE
  9. 9

    AAction Air Conditioning & Heating Co.

    4.8 · 411 Google reviewsLithia Springs, GA
    72SCORE
  10. 10

    Evans Air Conditioning

    4.9 · 158 Google reviewsHapeville, GA
    72SCORE
  11. 11

    Maintenance Unlimited Heating & Cooling

    4.9 · 126 Google reviewsCollege Park, GA
    70SCORE
  12. 12

    Mayott Heating and Air Conditioning

    4.8 · 361 Google reviews
    68SCORE
  13. 13

    Essential Heating & Air Conditioning, Inc.

    4.8 · 285 Google reviewsAtlanta, GA
    67SCORE
  14. 14

    Douglasville Heating & Air & Appliance Repair

    4.8 · 91 Google reviewsDouglasville, GA
    66SCORE
  15. 15

    Panther HVAC

    4.8 · 205 Google reviewsAustell, GA
    63SCORE
  16. 16
    62SCORE
  17. 17

    Christian Brothers Heating & Air Conditioning

    4.8 · 131 Google reviewsAustell, GA
    62SCORE
  18. 18

    A.D. Campbell HVAC Services

    4.7 · 104 Google reviewsAtlanta, GA
    61SCORE
  19. 19

    Blow Heating and Air

    4.9 · 88 Google reviews
    61SCORE

We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Union City qualify, they'll appear here automatically.

Compare the top 10

Top HVAC companies in Union City by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1Estes Services904.95,14077Atlanta
2Hammond Services884.91,52147Austell
3Reliable Heating & Air, Plumbing and Electrical794.84,684–Fayetteville
4Assured Comfort Heating, Air & Plumbing784.84,119–Douglasville
5O'Callaghan Heating & Air Conditioning784.9659–Atlanta
6Atlanta Air Pro774.9636–Atlanta
7Dynamic Heating & Air LLC745.0139–
8Wade Heating & Air Conditioning734.9236–Austell
9AAction Air Conditioning & Heating Co.724.8411–Lithia Springs
10Evans Air Conditioning724.9158–Hapeville

HVAC companies in Union City: quick answers

Who is the highest-rated HVAC company in Union City, GA?

Estes Services has the highest 5 Star Score among HVAC companies in and near Union City: 90 out of 100, with a 4.9 star Google rating from 5,140 reviews.

How many 5 Star HVAC companies serve Union City?

19 HVAC companies meet our standard within about 16 miles of Union City: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 19 have 19,235 Google reviews between them, averaging 4.86 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.