Serving Ontario, CA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"He could have charged a higher price that I was willing to pay but instead was able to charge less to get the air conditioning to blow..."
Serving Ontario, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"I recently had a Daikin AC system installed in my home and I couldn’t be happier with Piggies Air Conditioning’s service. From the very beginning, Ruben was extremely knowledgeable, thorough, and informative—he made everything clear and easy to understand. The installer, was just as impressive. He was friendly, prompt, had high-quality workmanship and left the workspace immaculate. Piggies’ quote was competitive AND they offer AMAZING WARRANTY!! Overall, I was completely satisfied with the entire experience and would absolutely recommend this company to anyone looking to replace their AC unit. By far, the best family-owned HVAC company I’ve ever had the pleasure to work with. I appreciate their top-notch teamwork!"
Serving Ontario, CA and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"Ray is very professional, and provided options for my air conditioning unit replacement. Ray went out of his way to replace a small gas line leak that he found. He also drove to Anaheim early on Saturday morning to pick up a part that was needed for the AC unit, and came over to install it so that I would have the air conditioner available for the upcoming heat wave this week. He and his team were on time, and considerate during the installation process. I highly recommend RS Air Conditioning & Heating."
+2
Serving Ontario, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Credit card accepted
"Great example of a professional, was extremely knowledgeable about air conditioning. He was able to articulate what the actual issue was. I recommend the A/C Doctor to all!!!"
Serving Ontario, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Emergency services offered
"Was my consultant and advisor in the new repair system for my home"
+6
Serving Ontario, CA and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"Short notice call and he made arrangements to come see us with our air condition issue. Very cordial. Mask on as soon as he entered the door and explained everything in detail what he was going to do. Thank you so much! Nice and cold in the house again."
Serving Ontario, CA and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"I had multiple quotes for the same job. Super Air had the best price, best customer service, and they really know what they were talking about. They took the time to explain and show me what the issue was. It really made me trust in them and their service. I will recommend them 100%."
+4
Serving Ontario, CA and surrounding areas
Approved
In business since 2007
Free estimates
Small jobs welcome
"Prior to me selecting Aaceâ s heating air conditioning &swamp cooler, I interview (3) other well know AC/heating company and as most knows the â deceptionâ is real! After the initial consultations with one of the companies ( (name I wonâ t disclose)I was almost in tears about how many of their technicians were out of work and that I would help put food on their table...... I reluctantly agreed and signed the contract. After further thoughts I said to myself â he got me and immediately cancelled!! Aaceâ s heating AC & Swamp cooler they were sooo amazing and I was overjoyed with happiness! Integrity, respect, excellence, and team work they exhibited wellð ð ! I'm very picky and hard too please. I had NO option but to give frank and his team the well deserved compliments they rightfully earned!!!! Without a doubt I would recommend them to my family and friends. I forgot to mention they were very clean and took all the trash away even some of mines ð ð !!!! This review is documented from a real customer and NO one asked/ suggested I write anything. Happy customer ð ð ð !!!!"
+133
Serving Ontario, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"This company helped my elderly mom with her system. They came out right away and fixed the problem, had it back up and running really fast. They are affordable and the technician was very friendly. I definitely recommend Easy Air."
+4
Serving Ontario, CA and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"Get multiple quotes before you make a decision"
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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