Serving Granite Bay, 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 Granite Bay, 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 Granite Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Juliano Romano responded quickly I was able to get a same day appointment. He troubleshooted the problem, return the next day with the part great got my air conditioning working. Very thankful and appreciative excellent customer service and explained everything."
+6
Serving Granite Bay, 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 Granite Bay, 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 Granite Bay, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"Same-day service for our Central A/C repair was a huge plus. The technician was efficient and solved the problem fast. We were so satisfied that we booked them again for a new water heater installation?excellent work all around!"
+77
Serving Granite Bay, CA and surrounding areas
Approved
In business since 2006
Free estimates
Warranties offered
"Sergio and Kerillo (Sp) were very courteous, friendly and efficient . We appreciated their timely arrival and quick assessment of what was needed to get our aging air conditioner operating again."
+8
Serving Granite Bay, 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 Granite Bay, 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 Granite Bay, 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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