Serving Duluth, 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 Duluth, 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 Duluth, GA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"We had a technician named Jeremy come out to service our AC because we were hearing some noise coming from one of the vents, as well as to perform our routine maintenance since we’re members of their maintenance program. He did an absolutely great job! Jeremy was very professional, knowledgeable, and helpful. He went above and beyond to make sure everything was checked and taken care of, and he even took the time to show me how to properly change the filters myself. I really appreciated how patient he was and how willing he was to answer my questions and explain everything. It’s always nice to have someone come out who genuinely takes pride in their work and makes sure the customer understands what’s going on. We really appreciate the great service from Jeremy and would definitely recommend him!"
+21
Serving Duluth, GA and surrounding areas
Approved
In business since 2010
Emergency services offered
Warranties offered
We are a full service HVAC company. Our services include: diagnostic, maintenance service, repair, replacement, retrofit, pre-purchase inspection, and second opinion. We will diagnose, design and install the correct heating and/or air conditioner system to fit your individual needs. We are fully insured and bonded. We provide unsurpassed service and experience. We are timely and organized. Our strength lies with our integrity, knowledge, and faith. We Supply Our own parts, any parts supplied by consumer will come with additional fees. Diagnostic Fees Due at time of service $79.00 daytime / $118.50 after 5pm. \n
+18
Serving Duluth, GA and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Company was very professional and friendly. I would defiantly recommend them for all heating and air needs."
+17
Serving Duluth, GA and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"The technician diagnosed the problem and determined the capacitor was deflected. He replaced the capacitor and explained the purpose of the electrical part. I was extremely impressed with his knowledge of solving my problem. My only concern was that I thought the replacement of the part was exorbitant consisting the online prices of a capacitor for my air conditioning system."
Serving Duluth, 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."
Serving Duluth, 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 Duluth, 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 Duluth, 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."
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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