Serving Sparta, NC and surrounding areas
Approved
In business since 2022
Free estimates
Customers say: Quick response
"Dean and Co are great to work with. Quick response with clear communication and a pleasure to be around. Met a few of his team and all were top notch. Will not hesitate to contact for any future needs. Hard to find good people these days, but they are GOOD people!"
Serving Sparta, NC and surrounding areas
Approved
In business since 2017
Emergency services offered
Warranties offered
"Needed fencing installed to keep groundhogs from taking up residence under our deck. Brady came up with a creative and complete solution that made sure the varmints were out and would not return. Would use again."
+10
Serving Sparta, NC and surrounding areas
Approved
In business since 2007
Free estimates
Credit card accepted
We have extensive experience providing design, construction, installation and on going maintenance for all of our service lines across a diverse spectrum of industries and asset types. Founded over 75 years ago, HVAC Service Corporation has been a cornerstone in the Carolinas for reliable and efficient HVAC solutions. Our commitment to quality service and customer satisfaction has made us a trusted name in the industry. We are licensed and insured in North Carolina, South Carolina, and parts of Georgia, with our headquarters located in Gastonia, NC. Our mission is to provide top-notch commercial heating and air conditioning services that meet the unique needs of our clients.
Serving Sparta, NC and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Very easy to work with."
Serving Sparta, NC and surrounding areas
Approved
Responsible and on time
Serving Sparta, NC and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
Arlie & Sons Construction is a licensed North Carolina General Contractor specializing in structural deck replacement, fence installation, crawlspace supports, and inspection repair work.\n\nWe focus on doing projects correctly — not cutting corners — and provide clear, detailed estimates with defined scope so homeowners understand exactly what they’re getting.\n\nIf your deck has rot, sagging framing, failing posts, or was flagged during a home inspection, we typically provide turnaround estimates within 24–48 hours.\n\nWe handle all estimates directly to ensure proper communication and accurate pricing.\n\nCall or text 336-817-7528 for the fastest response.\n\nLicensed & Insured\nNC General Contractor #105865\nServing Wilkes and surrounding counties
+2
Serving Sparta, NC and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"Jerred at High Country Air completed our new AC unit quickly. This is our 2nd home and we are not there a lot. My In-laws (both in their 80"s) are coming to our home on June30th and High Country Air was the only company that worked with me on getting this completed prior to their arrival. He was flexible and kept in contact with me every step of the way. The AC is completed and we are looking forward to a comfortable visit with family. Thanks!"
+8
Serving Sparta, NC and surrounding areas
In business since 2016
Free estimates
Emergency services offered
"Chad was great to work with. He came out and explained my options with respect to just changing out my heat pump versus replacing both the outside unit and replacing the backup gas furnace. Joe and Jake came out and professionally installed my new units along with putting in a new hot water heater. They worked on the install until late evening and did a very good job. They cleaned up after themselves and left the job site in pristine condition. I will definitely use Virginia Carolina Heating and Cooling for any air or heating problems in the future. They were very honest and hardworking people that I highly recommend."
Serving Sparta, NC and surrounding areas
In business since 2023
Free estimates
Small jobs welcome
"Went above and beyond. Did a great job, punctual and efficient. Did a thorough job of cleaning entire duct system of house. Moved furniture as needed and replaced all items to original position. Would absolutely recommend and use again for future cleanings."
Serving Sparta, NC and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Mr. Ferrell worked with my husband over the phone to fix the problem. It was surprisingly fast and stress-free. To have the work done remotely in less than an hour was wonderful."
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.