
Serving Loomis, 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 Loomis, 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 Loomis, CA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Brian initially came out to repair my existing broken AC unit. He went over what was wrong, and that being over 20 years old, the AC unit was going to be more expensive to maintain and may not run for very much longer. Brian was upfront with all of the costs for a new unit, which we decided to go with, and gave a very reasonable price for the service. Brian and Angel came out and got the job done quicker than expected. They will be my go-to for heating and air from here on out. Highly recommend!"




Serving Loomis, CA and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"I decided to go with Ecology Air Innovations after my 33 old HVAC system crapped out on me. They installed a brand new Trane two stage heat pump, variable speed air handler, and all new ducts. I had been looking into Trane equipment because, while a little more expensive, I wanted to go with something reliable and Trane is one of the best. I received multiple quotes on that type of equipment and Ecology Air Innovations beat everyone else's price by a mile. Mark, the owner of the company, initially responded to my request and responded back very quickly. He came out and gave me the estimate the next day. He was very professional and helped me answer any questions I had. Three of his employees came out to do the work the next week and finished the total install in two days. They were all very professional and polite. One final thing, I received a SMUD rebate with the new install that was only good through the end of the month, and I was doing this very last minute...Mark jumped through hoops for me to make sure all of the paperwork got submitted in time so that I received the rebate. I couldn't be happier and I highly recommend them!"





+9

Serving Loomis, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1992
Free estimates
Emergency services offered
"Glenn Julian, the owners son, arrived within the expected time window. He allowed me to watch as he explained the various tests of the air conditioning that he was doing and he also described some of the previous experiences he has had with air conditioning systems. He seemed very knowledgeable and experienced. He finished the air conditioning maintenance check within one hour. We plan to call Julian's Heat & AC again in the fall when we need to have the heating system maintenance check done. Thank you Julian's Heat and AC for a great job done!"





+5

Serving Loomis, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"These guys were very professional, replaced my old furnace with a new one in a very short time and offered the best price. I really enjoy working with these guys, I have recommended them to all my friends and they will be doing the same job for my colleague next week."





+25

Serving Loomis, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1981
Free estimates
Emergency services offered
"Tech John Arias, is efficient, professional and very willing to explain. He is a credit to Lee's Air. Highly recommend Lee's Air Conditioning."





+21

Serving Loomis, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Warranties offered
"Amazing service. Efficient, friendly, professional and very knowledgeable in their area of service. It was incredible how fast the replacement of the entire AC was completed. I called, technician came the same day and replaced the system the next day. RK Mechanical Air Services are my go to company without a doubt."





+24

Serving Loomis, 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 Loomis, 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 Loomis, CA and surrounding areas
Approved
In business since 1961
Free estimates
Emergency services offered
"I called at 6pm to tell them my a/c had ice on the pipes outside on a 102 degree day. They were at my house by noon the next day and the a/c was working great shortly after. I recommend Valley Heating & Air."





+3
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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