Serving Elverta, CA and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Advanced Airs team did an excellent job for us! Everything was completed just as explained to us in our quote. You are now our go to HVAC team. Thanks!"
+4
Serving Elverta, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1992
Free estimates
Emergency services offered
"Nice people, Glenn & Jose very efficient and got my air going quickly."
+5
Serving Elverta, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"My air conditioner stopped working tonight. I have a heart condition that requires a cool house. Juliano came out at 9:30pm and fixed the a/c. He was professional, courteous and personable. He explained what the problem was and how he was going to repair it. Most of all, he established trust with me, which is the most important quality that I look for when seeking out companies I want to hire. Romano HVAC gave me A++ service, and I am so grateful that my home is once again comfortably cool."
+6
Serving Elverta, CA and surrounding areas
Approved
In business since 1979
Free estimates
Credit card accepted
"I had a problem with the air turning off before reaching desired temperature. The technician quickly solved the problem....a bad thermostat! Service was great!"
Serving Elverta, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1981
Free estimates
Emergency services offered
"I have a home Warranty with Lee s for air conditioning and plumbing. They are always professionals and go out of their way to help resolve any problems and back their work with out question. I have several properties and I have their service program for each. A bonus of having their service is they promise in an emergency they will respond with in two hours of your call. I have never met a more courteous, informed and professional group of guys that work for them. They even greet my dogs with a little love. I have peace of mind knowing they are they are honest, have fair prices and the work is unquestionable!"
+21
Serving Elverta, CA and surrounding areas
Approved
In business since 2025
Emergency services offered
Small jobs welcome
"I called the local Pro Heating and Air air-conditioning for our AC not cooling Excellent customer service affordable pricing and friendly to work"
Serving Elverta, CA and surrounding areas
Approved (Corporate)
In business since 1978
Emergency services offered
Warranties offered
"They had a good program for heating and A/C like for $100 they come out and check in the fall to make sure the heating is running right and again in the spring to make sure the A/C is working right. They did their job. It was cheaper than anyone else and I got 2 services. The only thing they could do better is give me free heating and air conditioning."
+18
Serving Elverta, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Nick and son promptly solved the AC not cooling issue and got my cold air back for a very reasonable price. Thanks Nick and Son Mike!"
Serving Elverta, CA and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Huge thank you to Chris at Alt AC for getting our air conditioning going again. It was absolutely wonderful walking into our house and feeling a chill after 3 weeks of record heat. We know of at least 5 houses who lost their A/C during these heat waves. If you need A/C service, we recommend Alt AC. Chris is professional, communicates well, and wants to earn your business."
+4
Serving Elverta, CA and surrounding areas
Approved
In business since 2016
Free estimates
Small jobs welcome
"Great job installing new air conditioning and attic insulation"
+5
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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