Serving Raleigh, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2001
Free estimates
Emergency services offered
"Love working with ThermoDirect! I’ve currently used several of their services (electrical, plumbing, HVAC.) Each time, the individuals were extremely professional and knowledgeable. Will always go to them first for my house needs"
+34
Serving Raleigh, NC and surrounding areas
Approved
In business since 1993
Free estimates
Warranties offered
"Kept me up to date with everything, since the work was being done on my daughter's home. I would go with this company again if I ever need any more work done"
Serving Raleigh, NC and surrounding areas
Approved
In business since 1977
Free estimates
Warranties offered
"Although we didn’t go with Tower, we were impressed by their knowledge and professionalism."
Serving Raleigh, NC and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quality work
"After several rain storms in the past several weeks, it caused damage to our roof, air condition unit and a bed room. It became very frustrating and exhausting! Fortunately, we contacted Fowler & Sons, Inc. for a quote to repair our 2nd floor air condition unit leek. After the quote was given, they explained detailed steps of the repairs, we checked references and, then gave them permission to complete the repairs. Fowler & Sons, Inc. worked for a day until our 2nd floor air condition unit leek was found and repaired in a exceptional immaculate manner."
Serving Raleigh, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Breeze Crafters HVAC did an excellent job replacing the UV bulbs and ballasts in my HVAC system. They were quick to respond, showed up on time, and completed the work efficiently and professionally. Pricing was very fair, and everything was done exactly as promised."
+1
Serving Raleigh, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Credit card accepted
"He diagnosis the AC unit and fill the gas. Overall process was performed as professional and informative. My bed room temperature is coming down. I appreciate for his help. Thank you!"
Serving Raleigh, NC and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Called at 5 pm customer service was great my furnace stopped working she she gave a window of time that night the technician called before arriving at 7pm he fixed the heater problem. His name is Lucas very knowledgeable & easy to talk with. He wore shoe covers before entering my house. I appreciate the great job I received and the price was fair. Thank you"
+9
Serving Raleigh, NC and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"On time, Javier was tech who provided very thorough semi annual maintenance job. Efficient, knowledgeable, cleaned everything. Explained the process, took his time to make sure ever was right"
Serving Raleigh, NC and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Very professional and timely project completion. I would highly recommend this company for any HVAC work."
Serving Raleigh, NC and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
"My heating system stopped working. Blue Collar was able to make come to my house within the a couple of hours. He diagnosed that my unit needed to be replaced. Within 2 days, he installed a new unit. The price was reasonable, and the work was performed professionally. I would highly recommend Blue Collar."
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 roof repair costs based on factors such as roof condition, materials, size, repair type and severity, and more.
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