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
"Checked AC, changed air filter Service was fine"
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
"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 Duluth, GA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Will and Eddie from CHEEKY Heating and Air came out today to install the 5” filter replacement on our Air Handler. Additionally, he and co-tech Eddie installed an additional return air vent and line to our overall system. Will seemed to be thorough and knowledgeable of all aspects regarding the installation. During the installation and completion of the work, Will kept us informed about the install progress and made sure there was “no mess left behind” when work was done. Thanks Will and CHEEKY for your trusted HVAC installation."
+29
Serving Duluth, 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 Duluth, GA and surrounding areas
Approved (Corporate)
In business since 1898
Free estimates
Emergency services offered
"The tenant in my rental property stated she had no cold air blowing. That day I called around for estimates and times to get to it, in busy hot July. I spoke with Moncrief early in the afternoon, and they were able to come out that evening and fix the issue - for a reasonable price, with honesty and integrity. Thanks.
"
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
Super Service Award Winner
In business since 1978
Free estimates
Credit card accepted
"All Seasons Heating & Air is a friendly, fair, honest, ethical and professional company. I communicated with Brant and was very pleased with his patience to explain things to me and his honesty in not trying to sell me a new unit if I didn't need one. He blew out the pipes of my old unit and now everything has worked perfectly since then. I would highly recommend this company to anyone. They are better than the best!!!"
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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