
Serving Mableton, 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 Mableton, 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 Mableton, GA and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"Respond quickly, and Bruce made every effort to accomodate us. They stand up to the name of their company "Be. Relieved", and that is exactly what Bruce did, relieved us from the hot heat by restoring us with air. They are the best good and very affordable. Bruce is our guy..."

Serving Mableton, GA and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
We are experts in the service, maintenance, and inspection of air conditioning units—providing a complete solution right at your fingertips.


Serving Mableton, GA and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"Customer service was excellent. They responded quickly and was on time. Project: install air condition and heating unit."



Serving Mableton, GA and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"Top Quality could not have chosen a better name for their business. They are TOPS in all categories beginning with their AWESOME employees. So pleased with my heating and air system. The follow up of maintenance is always taken care of by their friendly and super efficient technicians! Great job Top Quality!"





+7

Serving Mableton, GA and surrounding areas
Approved (Corporate)
In business since 1959
Free estimates
Credit card accepted
"The best experience. Jose Vincent really does a wonderful job. I'm pretty sure they all are expertly amazing buttttttt for me JOSE is the GOAT. Got my unit working and took the time to make sure it was right. I have a tiny human and it was important for the Air to work properly. Thank you"


Serving Mableton, 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."





Serving Mableton, GA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"I was really worried I would have to go a few days or even a week without cool air, but I called Dayco Systems that my friend recommended and I'm SO glad I did! They came out right away, after hours and fixed the unit. I highly recommend this company!"





+56

Serving Mableton, GA and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Best heating and air company I have ever used. Great customer service!"





+3

Serving Mableton, GA and surrounding areas
Approved
In business since 2010
Emergency services offered
Warranties offered
"Really impressed with the service on the furnace, highly recommend using Paze Heating and Cooling, great job."





+18
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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