
Serving Hampton, GA and surrounding areas
Approved
Super Service Award Winner
In business since 1966
Free estimates
Emergency services offered
"Very good service and was on time. I use Cool Ray for all my air conditioning and heating ."


Serving Hampton, GA and surrounding areas
Approved
Super Service Award Winner
In business since 1966
Free estimates
Emergency services offered
"Very good service and was on time. I use Cool Ray for all my air conditioning and heating ."

Serving Hampton, GA and surrounding areas
Approved (Corporate)
In business since 2011
Emergency services offered
Credit card accepted
"I found Cool Air via web search for AC Tune Up. They were offering a $39 system check which worked for me. Setting the appointment was very easy and straight forward. Jerry came out the next day and called 30 minutes prior to arriving. He was gloved masked and had booties covering his shoes before entering my home. He was very knowledgeable and made a number of no pressure recommendations and system additions that I didn't feel compelled to have installed. Jerry's approach was more as a consultant vs service person. I like this and would use Cool Air in the future."





+35

Serving Hampton, GA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"I did a quote on Angie needing help with my newly installed HVAC system in my recently purchased home. Kevin was the first person to call me, I explained what was going on he asked a series of questions and eventually referred me to the installer of the system. Informing me there should be a minimum one year installers warranty, to figure out whom installed it and to get them back out as to not void my manufacture warranty by allowing someone else work on the system. I received and used information from my broker and the same day 4/24/26 called the original installer and they are coming today 4/28/26 to fix this brand new system. The Peoples Champ Heating & Air, will be my go to experts once this courtesy one year warranty is up for sure. Thanks Kevin. For being a honest decent person, caring more about your craft and building relationships then making a Buck."




Serving Hampton, GA and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
Customer comfort and satisfaction is our primary objective. We offer routine maintenance, expert repairs and high-quality installations. We understand that trust is earned and that is how it should be. All we ask is for the chance to earn yours. Our many customers know that if and when there is a home comfort need, they can count on us.\nServicing residential and light commercial markets, we focus on the installation, repair and maintenance of new and replacement HVAC systems, dual fuel systems, zone control, humidifiers, air cleaning and air purification systems.

Serving Hampton, GA and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"The ASSA MECHANICAL SERVICES LLC Team showed up promptly at the previously agreed, confirmed day and time. They immediately got to work with removing the old window mounted air conditioner unit which needed to be replaced and installed the new air conditioner. The whole process only took about one hour. A very professional and communicative team. The new air conditioner is working great. We’ll be requesting these guys again for any annual maintenance required for the window a.c. unit. Thank you ASSA MECHANICAL SERVICES LLC. Arthur"



Serving Hampton, GA and surrounding areas
Approved
In business since 1949
Free estimates
Emergency services offered
"Steven was excellent. He was patient and attentive to our needs. He communicated effectively while demonstrating the good and bad of our air condition system."





+29

Serving Hampton, GA and surrounding areas
Approved (Corporate)
In business since 1959
Free estimates
Credit card accepted
"The guy Mike came out to my house to fix the thermostat that was installed and I was very impressed with the knowledge he had about the equipment"


Serving Hampton, GA and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"Jason Erwin was the best sales advisor I have worked with. He knows alot about AC systems and answered all of my question prior to my purchase.The install crew was very efficient installing a complete AC system. They wasted no time while they were at my home and answered all of my questions. They also made sure that they cleaned up after they were finished."

Serving Hampton, GA and surrounding areas
Approved
In business since 2025
Free estimates
Offers commercial services
We specialize in HVAC system installations, repairs, and replacements for homeowners in Stockbridge, McDonough, Fayetteville, Griffin and surrounding South Metro Atlanta areas. Whether your AC has failed or your system is outdated, we provide honest recommendations, energy-efficient options, and fast, professional installation. Our focus is helping you avoid costly repairs by upgrading to reliable systems that lower energy bills and improve comfort. We offer free estimates, flexible financing options, and straightforward pricing with no surprises. Call today for a quote on AC replacement, furnace installation, or complete HVAC system upgrades.\nFully Licensed and Insured!


Serving Hampton, GA and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
Pillar is a locally owned HVAC company providing reliable residential and commercial heating and air conditioning services across South Atlanta. We specialize in system repairs, full replacements, preventative maintenance, and emergency service for homes and businesses.\n\nOur team delivers disciplined, professional workmanship on every project. We focus on accurate diagnostics, clear communication, and long-term solutions that support efficiency, reliability, and performance.
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.
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