
Serving Ball Ground, 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 Ball Ground, 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 Ball Ground, 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 Ball Ground, GA and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"My a/c wasn't blowing cold air the tech, Andrew, showed up and got right to it. He found the problem (the capacitor) and got it replaced in less then 30 minutes. It's working like a charm now. He explained everything as he went along and was top notch professional."

Serving Ball Ground, 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!





+27

Serving Ball Ground, 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 Ball Ground, GA and surrounding areas
Approved
In business since 2020
Credit card accepted
Offers commercial services
"This company was amazing Corey was very helpful and knowledgeable I definitely recommend rapid hvac"

Serving Ball Ground, GA and surrounding areas
Approved
In business since 1949
Free estimates
Emergency services offered
"Estes performs a furnace and air conditioning inspection each year. They are professional and do excellent work. As a result of an inspection, it was determined our furnace couldn't be used. They replaced it. At least 6 years of excellent service."





+31

Serving Ball Ground, GA and surrounding areas
Approved (Corporate)
In business since 1959
Free estimates
Credit card accepted
"I wasn t home I couldn t see install AIR unit but they did good job. Air conditioning works good. Sales person didn t contact me. Dispite I left massage and call ARS many times. he s name is Mr Wes. Bad service. I am disappointed"


Serving Ball Ground, GA and surrounding areas
Approved (Corporate)
In business since 2007
Free estimates
Credit card accepted
"Adam and team installed a new HVAC system for me. From start to finish, they were prompt, professional, courteous, efficient. After diagnosing the problem, Adam took the time to explain the issue and lead me through all the potential solutions. Installation went flawlessly. Adam's team did a great job including putting covers over their shoes while in my home and cleaning up after the job was complete. I would definitely recommend 4 Seasons for your HVAC needs."





+25

Serving Ball Ground, GA and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Had an issue where my upstairs A/C wasn't cooling. The tech showed up on time and checked all of my equipment and couldnt find a reason why it wasnt working. Didnt try to sell me a new unit or replace parts that werent broken. My A/C is working now with no problems. I would highly recommend!"



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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