Serving Lincoln, 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 Lincoln, 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 Lincoln, CA and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Brad was terrific. He came and did an A/C tune up which cost $29.00 as well as a diagnostic test which cost $49.00 to determine why the AC wasn't blowing cold air. He discovered the capacitor was blown. He replaced the capacitor which cost $189.00 and the AC started blowing cold air."
+13
Serving Lincoln, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1992
Free estimates
Emergency services offered
"We finally got our gas fireplaces working thanks to Glenn at Julian's Heat & Air who is an expert at what he does, a great educator, and wonderful to work with."
+5
Serving Lincoln, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"Go Pro handled my air conditioning installation flawlessly. Their HVAC technicians were professional, efficient, and explained every step. My home is now perfectly cool, and I highly recommend them for any heating and cooling needs.""
+77
Serving Lincoln, 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 Lincoln, 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 Lincoln, 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 Lincoln, CA and surrounding areas
Approved
In business since 1963
Free estimates
Emergency services offered
"Their sales representative, aaron, responded quickly to my posting for the installation of a new central heat air unit. His explanation of my alternatives was very thorough. He arranged for an installation of the new unit 2 days later. The installation crew arrived early, we're very efficient, and cleaned up the area after their departure. I was very pleased with the service provided by Clarke and Rush on this job."
+12
Serving Lincoln, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"He knew what to look for and repaired the air conditioner. The charges were less than I expected. Great Service Thanks"
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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