Serving Lincoln, CA and surrounding areas
Approved
In business since 1982
Free estimates
Warranties offered
"This company did more than we expected at a price no one could have predicted. We will go back to Golden Aire into the future because they are pros, trustworthy and very well run."
Serving Lincoln, CA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Best HVAC company I've had to deal with for a long time. very professional, courteous, goes beyond the job to get a repair or install done right and timely. they're also the best bargain and use superior equipment compared to other companies. from the moment I contacted them to the last details of the job they shine high above other irresponsible companies out there. I highly recommend them."
Serving Lincoln, 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 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 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
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"The experience was fantastic! I never thought I'd say that about a furnace installation but the 2 servicemen Dmitry and his colleague made me feel very comfortable with all the proceedings. The last time I had to replace my central air system was different. The gentlemen doing the job were dismissive of my requests and ended up setting it up wrong having to return several times to finish. Nothing like that with RK Mechanical, super smooth sailing."
+25
Serving Lincoln, 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 Lincoln, CA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Our technician Jet came out and after diagnosing the problem he discussed what he found with us and also suggested some preventive maintenance procedures to save us from some future maintenance. After agreeing on work to be done Jet took care of the necessary repairs and now the air conditioning is working perfectly. We were very pleased with the professional and honest work performed and will definitely be calling Huft Heating and Air Conditioning for any future repairs."
+19
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 1981
Free estimates
Emergency services offered
"We had a small "hiccup" or miscommunication which delayed the installation a bit, but Lee's Air was committed to getting the project completed to our satisfaction. Customer service is good."
+21
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.
Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.
Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.
Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.
Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.
Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.
Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.