383 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Kennesaw: Cool Air Mechanical, CR Score 67/100; 4.9★ from 10,810 Google reviews; open 24/7.
Best for emergencies (open 24/7): Coolray Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 383.
Most-reviewed: TE Certified, Electrical, Plumbing, Heating & Cooling, 11,727 Google reviews at 4.9★, the most of 383 ranked; ranked #45.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
383 Kennesaw HVAC contractors are ranked here by CR Score, from ten published factors. 128 are open 24/7, 282 open Saturdays and 200 open Sundays, based on posted hours. The median Google rating is 4.9★ across 383 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Cool Air Mechanical | 67 | 4.9★ (10,810) | Marietta, 5 mi away | 24/7 | Overall |
| 2 | Coolray Heating & Air Conditioning | 66 | 4.8★ (10,615) | Marietta, 5 mi away | 24/7 | Emergencies |
| 3 | E. Dennis Heating, Cooling, Plumbing & Electrical | 65 | 4.9★ (4,846) | Marietta, 8 mi away | 24/7 | — |
| 4 | E. Smith Heating & Air Conditioning | 64 | 4.9★ (1,775) | Marietta, 6 mi away | 24/7 | — |
| 5 | HVAC Bee | 63 | 5.0★ (582) | Woodstock, 8 mi away | 24/7 | — |
| 6 | Summit | 63 | 5.0★ (529) | Marietta, 7 mi away | 24/7 | — |
| 7 | Casteel Heating, Cooling, Plumbing & Electrical | 62 | 4.8★ (10,009) | Marietta, 5 mi away | 24/7 | — |
| 8 | Air Force Heating & Air | 62 | 4.8★ (1,194) | Marietta, 10 mi away | 24/7 | — |
| 9 | Guardian Home Experts- Heating, Air, Plumbing & Electrical | 62 | 4.9★ (1,303) | Cartersville, 15 mi away | 24/7 | — |
| 10 | ANYTIME HEATING, COOLING AND PLUMBING | 61 | 4.9★ (2,157) | Canton, 19 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: 4.9★ from 10,810 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 5 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 10,615 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 4,846 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 6 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,775 Google reviews, listed on Google as “HVAC contractor”.
Based in Woodstock, 8 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 582 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 7 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 529 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Marietta, 5 mi away
Ranked #7 because of its Google rating and review volume: 4.8★ from 10,009 Google reviews.
Based in Marietta, 10 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 1,194 Google reviews, listed on Google as “HVAC contractor”.
Based in Cartersville, 15 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,303 Google reviews, listed on Google as “Furnace repair service”.
Based in Canton, 19 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 2,157 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 8 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 408 Google reviews, listed on Google as “HVAC contractor”.
Based in Atlanta, 19 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 3,152 Google reviews, listed on Google as “HVAC contractor”.
Based in Acworth, 4 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 282 Google reviews, listed on Google as “HVAC contractor”.
Based in Atlanta, 15 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 508 Google reviews, listed on Google as “HVAC contractor”.
Based in Smyrna, 11 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 339 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 11 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 312 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 5 mi away
Ranked #17 because of its Google rating and review volume: 4.9★ from 1,853 Google reviews.
Based in Marietta, 12 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 497 Google reviews, listed on Google as “HVAC contractor”.
Based in Douglasville, 23 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 3,674 Google reviews, listed on Google as “HVAC contractor”.
Based in Canton, 16 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 1,047 Google reviews, listed on Google as “HVAC contractor”.
Based in Atlanta, 16 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 361 Google reviews, listed on Google as “HVAC contractor”.
Based in Roswell, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 880 Google reviews, listed on Google as “HVAC contractor”.
Based in Austell, 15 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 435 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 11 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 449 Google reviews, listed on Google as “HVAC contractor”.
Based in Marietta, 8 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 91 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 383 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 |
|---|---|---|
| 2020 Appliances Repair LLLP | 5.0★ (2) | 8 mi |
| AC & HEAT and APPLIANCES | 3.0★ (2) | 23 mi |
| Accurate Services Inc | 5.0★ (2) | 20 mi |
| Burton Heating & Air Conditioning Services | 4.4★ (26) | In Kennesaw |
| Central Heating & Air Conditioning | 5.0★ (2) | 13 mi |
| Controlled Climate Services | In Kennesaw | |
| EME Construction | 5.0★ (2) | 24 mi |
| Emperial Heating and Air LLC | 3.0★ (2) | 7 mi |
| Hanratty Heating and Cooling, LLC | 5.0★ (2) | 14 mi |
| Locklear Service Company, LLC | 5.0★ (2) | 21 mi |
| Majestic Plumbing, Electric & HVAC | 4.7★ (709) | 7 mi |
| Pars Air LLC | 5.0★ (2) | 10 mi |
| Reliable Heating Pros - Marietta | 2.5★ (2) | 10 mi |
| Shepherd's Home Repair | 4.0★ (2) | 16 mi |
| SLAM Heating & Cooling | 5.0★ (264) | 16 mi |
| Superior Indoor Comfort, Inc. | 4.8★ (424) | 21 mi |
| Turbaire One HVAC | 5.0★ (2) | 21 mi |
| Universal Time Solutions | 5.0★ (2) | 15 mi |
| Wilson Air Conditioning Service, Inc. | 4.7★ (76) | 11 mi |
| Wine Cellar Specialists | In Kennesaw |
National price ranges in USD, not adjusted for Kennesaw. 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 383 Kennesaw 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 Kennesaw 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 |