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Best HVAC Contractors in Marietta, GA (2026)

498 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Marietta: Cool Air Mechanical, CR Score 68/100; 4.9★ from 10,810 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Coolray Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 498.

  3. 45

    Most-reviewed: TE Certified, Electrical, Plumbing, Heating & Cooling, 11,727 Google reviews at 4.9★, the most of 498 ranked; ranked #45.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

498 Marietta HVAC contractors are ranked here by CR Score, from ten published factors. 159 are open 24/7, 365 open Saturdays and 245 open Sundays, based on posted hours. The median Google rating is 4.9★ across 498 rated businesses.

Top 10 HVAC contractors in Marietta at a glance

Top 10 HVAC contractors in Marietta at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Cool Air Mechanical684.9★ (10,810)Marietta24/7Overall
2Coolray Heating & Air Conditioning674.8★ (10,615)Marietta24/7Emergencies
3E. Dennis Heating, Cooling, Plumbing & Electrical674.9★ (4,846)Marietta24/7—
4E. Smith Heating & Air Conditioning664.9★ (1,775)Marietta24/7—
5Air Force Heating & Air654.8★ (1,194)Marietta24/7—
6Summit655.0★ (529)Marietta24/7—
7Casteel Heating, Cooling, Plumbing & Electrical644.8★ (10,009)Marietta24/7—
8United Air Temp634.8★ (497)Marietta24/7—
9Innovative Mechanical, LLC634.9★ (312)Marietta24/7—
10ANYTIME HEATING, COOLING AND PLUMBING634.8★ (408)Marietta24/7—

The 498 best HVAC contractors in Marietta, ranked

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.

  1. Ranked #1 in Marietta

    #1 Cool Air Mechanical

    Based in Marietta

    68/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.9★ from 10,810 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 10,810 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1950 Guffin Ln, Marietta, GA 30066
    View profile for Cool Air Mechanical(470) 531-5480

  6. #6 Summit

    Based in Marietta

    65/100CR Score

    Ranked #6 because of its Google rating and trade focus: 5.0★ from 529 Google reviews, listed on Google as “Air conditioning contractor”.

    • 5.0★ from 529 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    51 Austin Ave NE, Marietta, GA 30060
    View profile for Summit(770) 282-9545

  8. #8 United Air Temp

    Based in Marietta

    63/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.8★ from 497 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 497 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1240 Johnson Ferry Pl Building - C Suite #220, Marietta, GA 30068
    View profile for United Air Temp(770) 999-0314

  14. #14 RS Andrews

    Based in Marietta

    62/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 159 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.9★ from 159 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2997 Johnson Ferry Rd, Marietta, GA 30062
    View profile for RS Andrews(404) 382-9296

  15. #15 Carter and Sons HVAC

    Based in Smyrna, 5 mi away

    62/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 339 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 339 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1701 McCoba Dr SE Suite A, Smyrna, GA 30080
    View profile for Carter and Sons HVAC(770) 434-4095

  16. #16 HVAC Bee

    Based in Woodstock, 10 mi away

    62/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 582 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 582 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    715 Hammond Dr, Woodstock, GA 30188
    View profile for HVAC Bee(678) 327-8360

  20. #20 Ace Tech

    Based in Marietta

    62/100CR Score

    Ranked #20 because of its Google rating and trade focus: 5.0★ from 241 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 241 Google reviews
    Hours
    Mon–Sun 7 AM–8 PM
    Address
    3175 Hembry Ct, Marietta, GA 30062
    View profile for Ace Tech(404) 369-9100

  23. #23 The Air Company

    Based in Atlanta, 11 mi away

    61/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 361 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 361 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10 Glenlake Pkwy NE Suite 130, Atlanta, GA 30328
    View profile for The Air Company(404) 583-7788

HVAC contractors ranked #26 to #50

#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 498 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Marietta, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26A TEAM SERVICES Heating & Air614.6★ (193)In Marietta
27Bardi Heating, Cooling, Plumbing, Electrical614.7★ (7,525)21 mi
28H & H Mechanical, Inc.614.9★ (435)12 mi
29Bardi Heating, Cooling, Plumbing, Electrical614.8★ (880)14 mi
30PV Heating, Cooling & Plumbing604.9★ (2,524)17 mi
31Cunningham Associates604.8★ (1,107)17 mi
32Neese Heating, AC and Plumbing604.9★ (1,955)23 mi
33Guardian Home Experts- Heating, Air, Plumbing & Electrical604.9★ (1,303)21 mi
34RS Andrews604.9★ (9,045)19 mi
35Staton Heating & Air Inc604.9★ (754)19 mi
36Rieger Mechanical Heating & Cooling605.0★ (282)9 mi
37Rooter ProXpress604.6★ (3,109)19 mi
38Coolpro Heating and Cooling605.0★ (623)In Marietta
39Comfort Solutions Heating & Cooling LLC604.9★ (1,371)22 mi
40TempTide605.0★ (24)1 mi
41Premier Indoor Comfort Systems604.8★ (1,047)19 mi
42Majestic Plumbing, Electric & HVAC594.7★ (709)In Marietta
43inAir Heating & Air Conditioning594.8★ (324)7 mi
44SLAM Heating & Cooling595.0★ (264)10 mi
45TE Certified, Electrical, Plumbing, Heating & Cooling594.9★ (11,727)14 mi
46Airworx North Atlanta595.0★ (137)13 mi
47Reliable Heating & Air, Plumbing and Electrical - Alpharetta594.8★ (510)16 mi
48Cary Moody Heating & Air594.9★ (493)19 mi
49Pro Cool Heating And Air594.9★ (77)3 mi
50Aaron Plumbing595.0★ (108)13 mi

Also serving Marietta

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.

Unranked HVAC contractors serving Marietta
BusinessGoogle ratingDistance
2020 Appliances Repair LLLP5.0★ (2)In Marietta
Accurate Services Inc5.0★ (2)15 mi
amj heating & air5.0★ (2)5 mi
ATL HVAC Experts - MariettaIn Marietta
CDORCE HVAC INCIn Marietta
Central Heating & Air Conditioning5.0★ (2)7 mi
Climate Heroes Air Conditioning5.0★ (163)16 mi
Coolmax Air4.2★ (10)In Marietta
Emperial Heating and Air LLC3.0★ (2)1 mi
Hanratty Heating and Cooling, LLC5.0★ (2)15 mi
Locklear Service Company, LLC5.0★ (2)15 mi
Maxair Mechanical4.0★ (31)In Marietta
McCall's Heating & Air5.0★ (13)1 mi
Mechanical Services, Inc.5.0★ (1)In Marietta
Papi Heating & A CIn Marietta
Pars Air LLC5.0★ (2)11 mi
Reliable Heating Pros - Marietta2.5★ (2)In Marietta
Shepherd's Home Repair4.0★ (2)11 mi
Turbaire One HVAC5.0★ (2)17 mi
Woodstock Classic Air Conditioning Repair1.0★ (1)In Marietta

How much do HVAC contractors cost in Marietta?

National price ranges in USD, not adjusted for Marietta. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Marietta?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in Georgia

In Georgia, Georgia State Construction Industry Licensing Board licenses Conditioned air contractor licenses (Division of Conditioned Air Contractors).

  1. Search the business name or license number on the Georgia State Construction Industry Licensing Board license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

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

When to hire an HVAC contractor in Georgia

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.

How we ranked Marietta HVAC contractors

We scored 498 Marietta 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Marietta data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Marietta: frequently asked questions

Who is the best HVAC contractor in Marietta?

By CR Score, the highest-ranked HVAC contractor in Marietta, GA is Cool Air Mechanical with a CR Score of 68/100. It has 4.9★ from 10,810 Google reviews. It is open 24/7. Coolray Heating & Air Conditioning (#2) and E. Dennis Heating, Cooling, Plumbing & Electrical (#3) follow. We ranked 498 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Marietta?

ContractorsRanked ranks 498 HVAC contractors serving Marietta, GA. 21 of them are based in Marietta; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Marietta are open 24/7?

159 ranked HVAC contractors in Marietta post 24/7 hours. The highest-ranked are Cool Air Mechanical (#1), Coolray Heating & Air Conditioning (#2) and E. Dennis Heating, Cooling, Plumbing & Electrical (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Marietta work on weekends?

365 of 498 ranked HVAC contractors post Saturday hours and 245 post Sunday hours. The highest-ranked open Saturdays are Cool Air Mechanical (#1), Coolray Heating & Air Conditioning (#2) and E. Dennis Heating, Cooling, Plumbing & Electrical (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in Georgia?

In Georgia, Georgia State Construction Industry Licensing Board handles licensing and covers Conditioned air contractor licenses (Division of Conditioned Air Contractors). Search the business or license number at https://verify.sos.ga.gov/verification/.

How much does ac replacement cost in Marietta?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Marietta. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Marietta HVAC contractors have?

The median Google rating among 498 rated HVAC contractors in Marietta is 4.9★, with a median of 28 reviews. TE Certified, Electrical, Plumbing, Heating & Cooling has the most, 11,727 reviews, and ranks #45. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Marietta?

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.

Update log for Marietta

  1. October 2026: CR Scores recalculated for 498 hvac contractors serving Marietta.
  2. October 2026: 7 duplicate listings merged.

More HVAC contractors and Marietta pages

Other trades in Marietta