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Find Air conditioning pros in Kennesaw

Avatar for R Wiley Heating & Air
R Wiley Heating & Air
4.7(
1,114
)

Serving Kennesaw, GA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"This was my second quote and this company is amazing. Quickly identified the issue, changed the motor, provided a filter and made sure everything was working on one trip within a few hours. The previous company (Air Pros, LLC) said it was unfixable and tried to sell me a new unit over $6k which was a huge scam. Don't go to those guys, work with this family owned honest business. Keep in mind HVAC repairs in many cases are not cheap, I own 3 houses and have paid several hundred or more when an HVAC is old and need repairs."
Additional Photos
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Response time10 hrs
52 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Atlanta Air Authority, Inc.
Atlanta Air Authority, Inc.
4.9(
237
)

Serving Kennesaw, GA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Atlanta Air Authority was great all around, polite, on time, and informative. One of the few places that offered quotes on multiple suppliers. Their prices were the best, the lowest for the highest quality, along with very competitive warranties on their work. They had pride in their workmanship and it showed. Iâ m looking forward to also using them for all my HVAC maintenance."
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+9

Response time4 hrs
3 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Dayco Systems LLC
Dayco Systems LLC
4.9(
179
)

Serving Kennesaw, GA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Very detailed explanation of all work to be completed,  costs,  and warranty.    
In and  Out in one day as promised.  
Clean and efficient - all back to original condition after new install! 
Professional team - polite and hard working.
Call back was needed to address 1 issue:  Vent through the roof in attic which was immediately addressed and corrected.   Excellent response to the issue.
"
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+56

49 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Paze Heating & Cooling
Paze Heating & Cooling
4.7(
71
)

Serving Kennesaw, GA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

We are a full service HVAC company. Our services include: diagnostic, maintenance service, repair, replacement, retrofit, pre-purchase inspection, and second opinion. We will diagnose, design and install the correct heating and/or air conditioner system to fit your individual needs. We are fully insured and bonded. We provide unsurpassed service and experience. We are timely and organized. Our strength lies with our integrity, knowledge, and faith. We Supply Our own parts, any parts supplied by consumer will come with additional fees. Diagnostic Fees Due at time of service $79.00 daytime / $118.50 after 5pm. \n

Carrier
Carrier Furnace
Carrier Furnace
Carrier Furnace
Carrier A/C

+18

Response time5 hrs
8 neighbors recently requested a quote
Recommended by89%of homeowners
Comfort Solutions Heating & Cooling, LLC
4.7(
514
)

Serving Kennesaw, GA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Comfort Solutions came to my aid in a pinch (same day service). I had just self installed a smart a few thermostats at my place, but 2 of them were not working as expected (only pushing out hot air, and the fan wouldn't shut off). It was also a really hot day. The technician arrived, assessed the situation, tried a few configurations for the thermostats and eventually figured out the problem. The system wasn't that old but it was wired in a weird, and inconsistent way between all the thermostats in the house. In the end, the charge was very reasonable, because even though they spent a lot of time at the house, the fix itself was not that costly. Through the entire service, it was very easy to talk to the technician, he explained everything and answered all questions - it was almost like talking to someone I had known for a while. They also recommended another fix that was not urgent, but something I should keep in mind. They were not even pushy about it - but I will definitely call them when I am ready for the fix."
2 Brand New Rheem AC Systems
Old AC Systems
Response time11 hrs
10 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Cool Air Mechanical LLC
Cool Air Mechanical LLC
4.7(
278
)

Serving Kennesaw, GA and surrounding areas

Approved (Corporate)

In business since 2011

Emergency services offered

Credit card accepted

"Great. Jerry Cobb came by to reprogram the thermostat for us. We were not able to figure out how to get it the way we wanted and Jerry took care of it for us. Cool Air replaced our entire HVAC system about 2 years ago. We were happy with the job and will be having them add a humidifier to the system soon."
Cool Air Mechanical Techs preparing for a day's work serving customers!
Filter Change
Cool Air Mechanical's Service Team
Loading filters in the trucks. We ensure our trucks are stocked and we have equipment and tools on hand to best serve you!
Cool Air tech headed to a job!

+35

84 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Ragsdale Heating, Air & Plumbing
Ragsdale Heating, Air & Plumbing
4.7(
182
)

Serving Kennesaw, GA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Good company. Good experience from the time I began obtaining an estimate, until the work was completed June 2016. Prices were fair and reasonable for above-builder-grade product on 2 (Carrier Performance Series) HVAC unit replacements. They were very accommodating on meeting the timeline promised. My ONLY issue was that a bit more care could have been exercised on the install... but it was hotter than Hades, making conditions brutal! I am choosing Ragsdale to continue to service our units. I give them a A-"
Response time6 hrs
Response rate95%
10 neighbors recently requested a quote
Avatar for Guardian Heating, Air, Plumbing & Electrical
Guardian Heating, Air, Plumbing & Electrical
5.0(
16
)

Serving Kennesaw, GA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

30+ Years of Experience! Voted Best HVAC Company 4 years in a row in Atlanta!. Free Service Call Fees with Repairs over $250! Meet or Beat your in hand HVAC Estimate! At Guardian Home Experts, we are committed to each and every customer by offering one solution to your home service needs. With over 30 years of experience, the company was built on providing reasonable and affordable prices, expert technicians, and practices that respect the customer. Our customer's time, money and needs, are placed at top priority . Guardian's solutions are always delivered with honest and upfront practices. At Guardian, we "Save the day with expert service," and guarantee your satisfaction stopping at nothing making sure your service is worthy of a positive review and your referrals. At Guardian- Quality Work, Quick Service at an Exceptional Value is Guaranteed!

Your Guardian Experts
Free HVAC Estimates
Tankless Water Heater Repair, Maintenance and Installation
Fully Stocked Trucks
Heater Tune Up

+27

29 neighbors recently requested a quote
Recommended by93%of homeowners
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FAQs for air conditioning projects in Kennesaw, GA

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Kennesaw, GA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.