Serving Clifton, VA and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Relax Air was awesome. I called them on a Monday and by that Friday I had a new AC unit. Very professional, competitive priced. I would recommend them for any HVAC service."
+12
Serving Clifton, VA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Our heat went out in the worst conditions...Sunday night with a snowstorm on its way. Matt came out, troubleshooted our furnace and the family was warm in no time. Great customer service and competent expert with over 15 years supporting this areas families"
+2
Serving Clifton, VA and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."
+13
Serving Clifton, VA and surrounding areas
Approved
In business since 1936
Free estimates
Emergency services offered
"The service was great. A professional job and explained everything as he went along. I would recommend this company for service on your Air Conditioner"
Serving Clifton, VA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"I discovered my heat pump fan not working on a Saturday after midnight. I sent in a request to homeadvisor and this company responded at 7:30am Sumday with tech availability the same day. They came out and found the problem right away. Their prices are very reasonable especially since it was the weekend. I would highly recommend them for all your heating and air conditioning needs. I will be keeping their info handy for future needs."
+3
Serving Clifton, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Responded quickly to request for assessment -- a simple fix was actually a needed major repair and replacement of a decade old evaporator. Completed work as scheduled and left no mess/debris. Albert was a cordial, efficient, and informative installer. No problems, highly recommended."
+4
Serving Clifton, VA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Super fast, reliable and efficient!!! T was at my house in less than 10 min after we talked over the phone. My AC broke and house was super hot. T even brought his portable AC and temporary installed it I m my bedroom until he replaced the unit. Highly recommend. Knowledgeable and professional"
+99
Serving Clifton, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Emergency services offered
"Bill and his team have now replaced my upstairs and downstairs unit. They talked me through the process and I never felt like I was being sold something I didn’t need! I’ll be calling Bill again for any future HVAC needs!"
Serving Clifton, VA and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Credit card accepted
"They really helped out in a serious bind! Great customer service and install. You wouldn’t even know they had been in our home to install a new furnace and air conditioning units. Highly recommend!"
Serving Clifton, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"My house to install HVAC system is in Virginia Beach, Virginia."
+11
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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