Serving Winston Salem, NC and surrounding areas
Approved
In business since 1991
Emergency services offered
Warranties offered
"The repairman was friendly and efficient - he quickly diagnosed the problem and got the unit cooling again."
Serving Winston Salem, NC and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Quick response, polite and very professional. Stephanie, the technician, explained in details what the issue with my central air unit was. Explained the options to repair and costs. Stephanie fix the issue , was very professional and answered all my questions."
+7
Serving Winston Salem, NC and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Free estimates
Emergency services offered
"I recently had the pleasure of working with QRC, Inc. for our commercial HVAC needs, and I can’t say enough about their exceptional service! From the moment we reached out, their team was professional, responsive, and genuinely invested in solving our issues. They arrived on time, quickly diagnosed the problem with our system, and provided a cost-effective solution that got our business back up and running without a hitch. The technicians were knowledgeable, courteous, and went above and beyond to ensure everything was perfect before they left. QRC, Inc. truly understands the importance of reliable HVAC/R service for commercial spaces, and their attention to detail and customer care is unmatched. I highly recommend them to any business looking for top-notch service"
+21
Serving Winston Salem, NC and surrounding areas
Approved (Corporate)
In business since 1972
Free estimates
Credit card accepted
"From start to finish they remove 2 HVAC systems and installed 2 new systems in 1 day. Got the quote day before and pricing was perfect for us. The crew and there manager kept us updated through whole project and went over everything with us. We couldn’t be more pleased with this company and their crews. I would recommend them if you want quality hard working, professionals that take pride in there work. You will be blown away with there work!! Thank you!!"
Serving Winston Salem, NC and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Good job! Thanks for the tips and good service."
+4
Serving Winston Salem, NC and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"My A/C went out and my home warranty sent out a company that said the coil needed to be replaced. They sent me an invoice that was way more than I expected so I decided to get another opinion. I listed my issue on Home Advisor Sunday morning and Shamrock called me within 10 mins. They came out to diagnose my issue free of charge AND knowing that I had been without air for a week already they loaned us a window unit. They came out the next day, put the window unit in and checked my system. Found out that the issue was not the coil, but even if it was the charge was way less than the invoice I had received from the other company. Thanks to Shamrock our air is working better than ever. Very prompt, courteous and thorough. Fixed issues that previous company created. Highly recommend!!"
Serving Winston Salem, NC and surrounding areas
Approved
In business since 2007
Credit card accepted
Customers say: True professional
"They completed all work in one day and left all areas in good condition. Their office staff completed and filed all paperwork for warranties and rebates. I highly recommend this company"
+2
Serving Winston Salem, NC and surrounding areas
Approved
In business since 1985
Free estimates
Emergency services offered
"Very well; tech was knowledgeable and professional, very helpful, helped troubleshoot a blower issue we had as well. Freon price seemed a tad high. Other than that, all good."
Serving Winston Salem, NC and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"The technician was very professional and very helpful. He was obviously very knowledgeable and knew exactly what our issue was. Replaced the part we needed same day! Decided to call them after having issues with another company last summer. Thanks!!!"
Serving Winston Salem, NC and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"I put A/C as the service, but I have a heat pump system, so this included both heat & air. I was impressed by their estimator, Alan, because he really took the time to do a thorough inspection. He also was here on day to help out with the job. All of the technicians were wonderful. This company goes the extra mile for their customers and I cannot recommend them highly enough."
+8
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 appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.
Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.
Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.
Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.
Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.
Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.