Serving El Dorado Hills, 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 El Dorado Hills, CA and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Our experience was excellent! George, the owner, assessed our situation, which was needing a first-time new HVAC System, and gave his recommendations. We had good communication throughout the process. They were diligent, knowledgable, and efficient workers. In 30 years of being in Sacramento, we have never had a central air system. No more enduring the heat! We are very pleased. All at a very affordable price. Thanks!"
+9
Serving El Dorado Hills, CA and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"The installation went great, and we love that our new system is way more energy efficient and our home is more comfortable than it was before. I'd recommend Good Value Heating & Air to anyone who needs work done on there heating and air conditioning system."
+5
Serving El Dorado Hills, 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 El Dorado Hills, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"Really impressed with Go Pro Plumbing, Heating & Air. The team was courteous, efficient, and clearly knew what they were doing."
+77
Serving El Dorado Hills, CA and surrounding areas
Approved
In business since 1979
Free estimates
Credit card accepted
"The repair was completed in less than twentyfour hours from the time I contacted home advisor. The technition and office staff were very knowledgeable and even found me a warrenty on my A.C. unit that I didn't know I had, which saved me money."
Serving El Dorado Hills, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Juliano is great to work with and very knowledgeable and honest. I am realtor and sure will use his services in near future. Seller is happy with his services too. Awesome Job Romano's Heating & Air Conditioning."
+6
Serving El Dorado Hills, CA and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"Hired them for a second opinion on repairing suspected cracked heat exchanger under Carrier 20yr warrenty. Proper investigation identified broken high limit sensor as source of short cycling. The extra care taken now has put them at the top of our list on a future replacement furnace."
+3
Serving El Dorado Hills, 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 El Dorado Hills, 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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