Serving Lodi, CA and surrounding areas
Approved
In business since 1982
Free estimates
Warranties offered
"They did a great job, and they were able to fix the problem on our air conditioning."
Serving Lodi, CA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
West Coast Air Conditioning is an Air Conditioning service provider serving CalaverasCounty, San Joaquin County, and surrounding areas area since 2010
Serving Lodi, CA and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"They installed central heating and air in our home in 2025. They were efficient, did a excellent clean up, and friendly. They checked in a week after to make sure we were satisfied with the system and if we had any questions. We are extremely satisfied with the new system. The controls are easy to work and the system is very quiet and efficient."
+5
Serving Lodi, CA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"They came out quickly. Did the job properly replace the heating and air-conditioning unit very happy with their work and the price I would recommend them to anyone."
+14
Serving Lodi, CA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"I was fortunate to receive service on the same day I called. My issue was difficult to diagnose, as many have tried before. They were willing to step in and try to resolve my issue for good. They were successful at their first attempt. I am grateful to Guerrero Heating & Air this Labor Day weekend of 100*F+ weather."
Serving Lodi, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2004
Emergency services offered
Warranties offered
"Ken was helpful, with a spirit of wanting to teach and share his knowledge. Super fast, super effective. We have a new heat & air company!"
+3
Serving Lodi, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"I hired Prime Energy after the owner Lionel Retes responded to my Angieâ s inquiry. He was here almost immediately. My initial thought about him was a sense of honesty. I had also read his other reviews. I was replacing a twenty seven year old heating and air conditioning unit. He didnâ t try to sell me a unit beyond what was needed. He recommended some new duct work. He completed it before he left for the day so we would have heat from our old furnace that night. He was correct, with the new duct work the old furnace warmed the house like it was new. If I hadnâ t already decided on a new system the old one would have worked but I figured its time was up. Leon installed the new Rudd system, the job was finished in three days. He put in long hours. His work ethic and craftsmanship are great. So far the new system is working well. I would hire Mr. Retes again and fully recommend him. Steve Knief"
+9
Serving Lodi, CA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Excellent customer service and fast work straight to the job professional"
+10
Serving Lodi, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Ken was amazing. He evaluated our equipment, installed new heating and air systems, linked the thermostat, and came back to be sure we were comfortable with the system and how to use it. And to be sure we were comfortable with the temperature! His attention to detail, service, and understanding our needs is exactly what makes us recommend AJAX to friends, too. Thanks, Ken!"
+2
Serving Lodi, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Credit card accepted
"Hired him and had same day service super professional and extremely nice. I would recommend"
+14
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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