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Best HVAC companies in Kennesaw, GA

The highest-scoring HVAC company in and near Kennesaw is E. Smith Heating & Air Conditioning (score 89, 4.9 stars from 1,868 Google reviews). 24 companies meet the 5 Star standard within 25 km.

Last updated Sep 25, 2026How we rank
  1. 1

    E. Smith Heating & Air Conditioning

    4.9 · 1,868 Google reviewsMarietta, GA64 years in business
    Family-ownedFree estimatesEmergency serviceFinancing available
    89SCORE
    (678) 369-8866 WebsiteFull profile
  2. 2

    TE Certified Electrical, Plumbing, Heating & Cooling

    5.0 · 8,171 Google reviewsKennesaw, GA
    87SCORE
    (678) 942-6153 WebsiteFull profile
  3. 3

    Bartlett Heating & Cooling

    5.0 · 2,382 Google reviewsMarietta, GA
    87SCORE
    (770) 648-1316 WebsiteFull profile
  4. 4

    E. Dennis Heating, Cooling, Plumbing & Electrical

    4.9 · 5,588 Google reviewsMarietta, GA
    83SCORE
    (770) 501-8620 WebsiteFull profile
  5. 5

    Hope Heating & AC Repair

    5.0 · 729 Google reviewsAtlanta, GA
    83SCORE
    (678) 916-9828 WebsiteFull profile
  6. 6

    Coolpro Heating and Cooling

    5.0 · 697 Google reviewsMarietta, GA
    82SCORE
    (770) 694-6232 WebsiteFull profile
  7. 7

    Summit

    5.0 · 579 Google reviewsMarietta, GA
    80SCORE
    (770) 282-9545 WebsiteFull profile
  8. 8

    LServices Air Duct Cleaning

    4.9 · 1,026 Google reviews
    79SCORE
    (470) 439-7970 WebsiteFull profile
  9. 9

    Casteel Heating, Cooling, Plumbing & Electrical

    4.8 · 10,754 Google reviewsMarietta, GA
    78SCORE
    (770) 637-4991 WebsiteFull profile
  10. 10

    Ace Hardware Home Services

    4.8 · 2,879 Google reviewsMarietta, GA
    78SCORE
    (770) 800-8896 WebsiteFull profile
  11. 11

    H & H Mechanical, Inc.

    4.9 · 553 Google reviewsAustell, GA
    77SCORE
    (770) 293-8679 WebsiteFull profile
  12. 12

    Carter and Sons HVAC

    4.9 · 432 Google reviewsSmyrna, GA
    76SCORE
    (770) 434-4095 WebsiteFull profile
  13. 13

    Air Force Heating & Air

    4.8 · 1,277 Google reviewsMarietta, GA
    75SCORE
    (770) 525-2303 WebsiteFull profile
  14. 14

    Reliable Heating & Air, Plumbing and Electrical - Kennesaw

    4.7 · 12,875 Google reviewsKennesaw, GA
    74SCORE
    (770) 594-9969 WebsiteFull profile
  15. 15

    Coolray Heating & Air Conditioning

    4.7 · 11,180 Google reviewsMarietta, GA
    74SCORE
    (770) 421-8400 WebsiteFull profile
  16. 16

    ANYTIME HEATING, COOLING AND PLUMBING

    4.8 · 647 Google reviewsMarietta, GA
    74SCORE
    (678) 203-1019 WebsiteFull profile
  17. 17

    Innovative Mechanical LLC

    4.9 · 320 Google reviewsMarietta, GA
    73SCORE
    (770) 726-7407 WebsiteFull profile
  18. 18

    Wade Heating & Air Conditioning

    4.9 · 230 Google reviewsAustell, GA
    73SCORE
    (770) 941-8598 WebsiteFull profile
  19. 19

    inAir Heating & Air Conditioning

    4.8 · 362 Google reviewsAtlanta, GA
    70SCORE
    (770) 233-7777 WebsiteFull profile
  20. 20

    Westmark HVAC Services | Heating and Cooling

    5.0 · 42 Google reviewsPowder Springs, GA
    67SCORE
    (943) 600-2223 WebsiteFull profile
  21. 21

    Triple M. Heating & Air Conditioning

    4.7 · 157 Google reviewsSmyrna, GA
    64SCORE
    (770) 319-0191 WebsiteFull profile
  22. 22

    Boiling Point Heating & Cooling

    4.8 · 40 Google reviews
    64SCORE
    (404) 994-9964 WebsiteFull profile
  23. 23

    Happy HVAC Solutions, LLC

    5.0 · 25 Google reviewsMarietta, GA
    63SCORE
    (770) 364-5141 WebsiteFull profile
  24. 24

    Helping Hand HVAC & Maintenance

    4.9 · 66 Google reviews
    61SCORE
    (470) 638-8859 WebsiteFull profile

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

Compare the top 10

Top HVAC companies in Kennesaw by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1E. Smith Heating & Air Conditioning894.91,86864Marietta
2TE Certified Electrical, Plumbing, Heating & Cooling875.08,171–Kennesaw
3Bartlett Heating & Cooling875.02,382–Marietta
4E. Dennis Heating, Cooling, Plumbing & Electrical834.95,588–Marietta
5Hope Heating & AC Repair835.0729–Atlanta
6Coolpro Heating and Cooling825.0697–Marietta
7Summit805.0579–Marietta
8LServices Air Duct Cleaning794.91,026–
9Casteel Heating, Cooling, Plumbing & Electrical784.810,754–Marietta
10Ace Hardware Home Services784.82,879–Marietta

HVAC companies in Kennesaw: quick answers

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

E. Smith Heating & Air Conditioning has the highest 5 Star Score among HVAC companies in and near Kennesaw: 89 out of 100, with a 4.9 star Google rating from 1,868 reviews.

How many 5 Star HVAC companies serve Kennesaw?

24 HVAC companies meet our standard within 25 km of Kennesaw: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 24 have 62,879 Google reviews between them, averaging 4.88 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.

HVAC companies near Kennesaw

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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.