
Serving Gramling, SC and surrounding areas
Approved
In business since 1998
Free estimates
Warranties offered
"Quality Air did a great job. Highly recommended."



Serving Gramling, SC and surrounding areas
Approved
In business since 1998
Free estimates
Warranties offered
"Quality Air did a great job. Highly recommended."


Serving Gramling, SC and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Integrity HVAC took extra care that our two new furnaces, and two new air conditioner units were running as they should be. They are professional, courteous, knowledgeable, and on time."





+24

Serving Gramling, SC and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Warranties offered
"We recently had a brand new HVAC system installed by Chisholm, and the entire experience was excellent. From the initial consultation to the final walkthrough, their team was professional, knowledgeable, and easy to work with. They took the time to evaluate our home and helped us choose a system that fits both our space and our budget. The installation crew arrived on time, worked efficiently, and made sure everything was cleaned up afterward. They also took the time to explain how the new system works and answered all our questions thoroughly. Since the install, the system has been running smoothly—quiet, efficient, and keeping our home consistently comfortable. We’ve already noticed an improvement in both temperature control and air quality. If you’re in need of HVAC work, I highly recommend Chisholm. They’re honest, skilled, and truly care about the quality of their work and customer satisfaction."





+1

Serving Gramling, SC and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Showed up on time, diagnosed the problem, and fixed it in a timely manner. Highly recommend First Class Heating and Air. Don’t waste your time calling anyone else."




Serving Gramling, SC and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Excellent work. Timely. Polite. Professional. I have used Bentley again for a different unit."

Serving Gramling, SC and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
We are a Local, Veteran & Family Owned HVAC Service and Installation company in Upstate SC. We look forward to providing outstanding customer service and to helping you take great care of your HVAC system, whether that's routine maintenance or replacing your aging inefficient system. We chose education over sales so you are empowered to make the best decision for your home and family. We are told over and over that our "no nonsense" approach is refreshing and our customers appreciate not be "sold to". Feel free to message us to schedule your appointment with a NERD today!




Serving Gramling, SC and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"Shawn is the HVAC guy everyone deserves! It’s hard to find someone in this industry who is both fair and trustworthy, but Shawn operates with integrity. He helped us fix a unit that another company installed as a new unit. A different company also attempted to correct the botched installation, but the underlying problem was never resolved. What should have been a straightforward new installation turned into a costly nightmare, with us repeatedly paying for labor and having to completely refill the Freon twice within the first two years. What was a HVAC disaster for any homeowner, Shawn was able to remedy. He has earned our trust, and he will be the first person we call for any future HVAC needs. As our experience clearly demonstrates, not calling Shawn from the beginning would be a mistake we would never make again. Unfortunately, that lesson was an extremely expensive one for us! We can’t thank you enough, Shawn! Shawn gets the job done right, give him a call!"

Serving Gramling, SC and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Free estimates
Emergency services offered
"The best service I have ever had. Kind and patient, answers all my questions. Installed new system on time without any issues. I would recommend Chris for all air conditioning issues."

Serving Gramling, SC and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"I really appreciated All Comfort Today's quick service and easy online estimate options."





+4

Serving Gramling, SC and surrounding areas
Approved
In business since 2015
Warranties offered
Credit card accepted
"Excellent, in one day he came and replaced every light in my house and ceiling fans. They never stop working."





+1
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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