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
"Glenn Julian, the owners son, arrived within the expected time window. He allowed me to watch as he explained the various tests of the air conditioning that he was doing and he also described some of the previous experiences he has had with air conditioning systems. He seemed very knowledgeable and experienced. He finished the air conditioning maintenance check within one hour. We plan to call Julian's Heat & AC again in the fall when we need to have the heating system maintenance check done. Thank you Julian's Heat and AC for a great job done!"
+5
Serving Granite Bay, 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 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
"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 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
"The service they provided was outstanding. They fixed the problem with my air conditioner within 3 hours of the time I first contacted them, and this was on one of the hottest days of the summer. The service charge was very reasonable."
+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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