Serving San Tan Valley, AZ and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"My air conditioner stopped blowing cold air recently, I called Frosty Fox and they were able to come out and get it back up and running same day. Excellent service and it didn’t cost me an arm and a leg. Highly recommend!!!"
+6
Serving San Tan Valley, AZ and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"I had a great experience working with Martin and his team for my air conditioning installation. Martin was kind, professional, and incredibly responsive throughout the entire process. The pricing was fair and transparent, and the quality of the installation exceeded my expectations. Everything was handled efficiently and with care. I highly recommend Martin and this company to anyone looking for reliable and honest HVAC work."
+15
Serving San Tan Valley, AZ and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Air Factor is the most professional and responsive AC contractor I have ever seen. I would gladly recommend them to anyone."
+5
Serving San Tan Valley, AZ and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Customers say: Quick response
"Sergio did a fantastic job on our Mini-split installation. I will definitely use Authentic Air and Plumbing for my future needs."
+41
Serving San Tan Valley, AZ and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Precise Air was very professional and sent a technician to my home with same-day service. The technician JP was very polite and informative."
+28
Serving San Tan Valley, AZ and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"I called service for our Central AC in the evening, received an immediate response from Mike. He sent a wonderful technician Justin to service our units the next morning. This quick response is so appreciated, unlike our home warranty company Fidelity National Home Warranty arranged a service call with The Sensible Air Conditioning after THREE days regardless we are under 110 Plus hot weather. The Sensible Air Conditioning technician never showed up for the appointment while we took 4 hours time off from work. Once they sent another technician, it was worse. He is so incompetent and useless, He claimed he fixed the AC which he did not. Later, we found out one of the unit's ground switch was on the "off" position, that Sensible AC company technician did not even realized that the unit was not been turned on, yet he claimed he fix the problem. Justin is competent, thorough, knowledgeable, and courteous. He checked our two units both inside and outside of our house, provided a list of diagnosis and suggestions. He explained each issue, solution and recommendation in great details, They are factual, accurate and practical. We have cool air again after his visit, we are so impressed by Justin's service, we will call Valleywide Cooling for any future service, and will request Justin as the person to take care of our request."
+15
Serving San Tan Valley, AZ and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"They were awesome. I was a little bit afraid about since my air conditioning was on my roof because I couldn't see what they were doing. It was a really good deal and they were really legit."
+9
Serving San Tan Valley, AZ and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"Our air conditioning stopped working so we called Absolute Comfort. They had an appointment available the same day which was great! Rob Tavolacci from Absolute Comfort fixed our unit after a few hiccups with the our furnace not working. He was very professional, friendly, explained what the problems were and gave us advice on fixing it. Would definitely recommend! Thank you!"
+8
Serving San Tan Valley, AZ and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Had some trouble with my AC and Jay came out and did an excellent job diagnosing what exactly was wrong, explaining all the information and options. Great work all around."
+1
Serving San Tan Valley, AZ and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Our AC stopped working suddenly due to a grounded compressor. He came out to our house that night, helped diagnose what went wrong (while showing me all the steps he was taking) and was back the next day with a new unit to install. Friendly, punctual, and always kept me updated on everything. Will definitely recommend to family and friends!"
+28
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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