Serving Buford, GA and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"Checked AC, changed air filter Service was fine"
Serving Buford, 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 Buford, GA and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Very well learn new things about my air conditioner"
+17
Serving Buford, GA and surrounding areas
Approved (Corporate)
In business since 2011
Emergency services offered
Credit card accepted
"I am very satisfied with the product and the service provided by Cool Air Mechanical and their technician, Sean Haynes. Sean did an excellent job of installing an air purification system. Sean also performed the annual checkup on my A/C system. I highly recommend Cool Air Mechanical and especially Sean for any air conditioning service."
+35
Serving Buford, GA and surrounding areas
Approved (Corporate)
In business since 1898
Free estimates
Emergency services offered
"Hottest day of the year so far, and the guys were in a sweltering attic half the day. The other half of the day they were trying to decide how to hoist the LARGE air-conditioning unit onto a ledge without destroying the landscaping. They had to bring in a 4th guy and a long, wide plank. They put that unit on the plank and three pushed it up the plank while the fourth helped position it. The men were appreciative of the cold watermelon I gave them and I welcomed them to help themselves to jug of cold water in the fridge. They had a f ull day's work on day one, then on day two, one man returned to finish the ductwork and the installation of the vent.
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Serving Buford, GA and surrounding areas
Approved
In business since 2016
Emergency services offered
Warranties offered
"This is an affordable, reliable, amazing company. My air conditioning systems were up and running in no time. Highly recommended!"
Serving Buford, GA and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"The response to my call was amazing. They came out at 7:00 pm. I had come home from work and my Air conditioning was not working. Very professional and did not mind explaining everything to me. Highly recommend."
Serving Buford, GA and surrounding areas
Approved
Super Service Award Winner
In business since 1978
Free estimates
Credit card accepted
"Had a great experience with this company. Brant was very helpful and patient with all my questions. He did one thing different from the other company's when providing the estimate. The other companies took sq footage to recommend my new unit. Brant walked the house and checked and counted my vents both service and returns. He then used these calculations and sq footage to make his recommendations. I am very happy with my new HVAC system."
Serving Buford, GA and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"Top notch company - installed our new AC/Heating units two years ago. I was a bit pricey, but has performed flawlessly. Subsequent service calls have been reasonable and professional. Highly recommend."
Serving Buford, GA and surrounding areas
Approved
In business since 2023
Free estimates
Credit card accepted
We have over 28 years of industry experience, and is dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Heating and Furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction!
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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