Serving Roswell, 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 Roswell, GA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Atlanta Air Authority was thoroughly professional throughout the process of replacing my HVAC system. And their good advice even saved me money. They were able to do the job the day after I agreed to hire them, showed up on time, did a very professional installation, cleaned up the work area and hauled off the old equipment. I couldn't be happier."
+9
Serving Roswell, GA and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"Checked AC, changed air filter Service was fine"
Serving Roswell, 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!"
+48
Serving Roswell, GA and surrounding areas
Approved
In business since 2010
Emergency services offered
Warranties offered
"Very friendly and efficient. Gave me a thorough assessment of my current AC unit."
+18
Serving Roswell, GA and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Our AC went out in the middle of summer and I called to schedule an appointment and they made it out the same day! They were very professional and completed the necessary maintenance extremely quickly. We had air again by the end of the day. It’s also one of the most affordable places we’ve ever used for our heating and air maintenance and repairs."
+17
Serving Roswell, GA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Tyler was great at fixing my ac unit. There were a few problems but he worked hard to see they were resolved and even picked up a window unit to keep the area cool until he fixed the issue. Would definitely recommend Tyler"
+26
Serving Roswell, 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 Roswell, GA and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"Professional and knowledgeable from start to finish. They did a great job installing a new heating and air system."
Serving Roswell, GA and surrounding areas
Approved (Corporate)
In business since 1898
Free estimates
Emergency services offered
"We quit using them because their service fees were too high. The guy who put the air conditioner was excellent."
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.
From average costs to expert advice, get all the answers you need to get your job done.
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