Serving Hanahan, SC and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Credit card accepted
"Exceptional service, very knowledgeable & worked in a timely manner. I will always recommend Maximum Air Experts, LLC!"
Serving Hanahan, SC and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Very good experience...Ac was blowing hot air...it was raining hard so I held an umbrella for the tech while he diagnosed my unit...he was honest, nice, and didnt overcharge...very very happy with this business"
Serving Hanahan, SC and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Russell was very thorough. He checked everything, asked me questions, and showed evidence of issues. He did more than simply fix a problem. He educated me on how to determine when a problem is arising. He offers a phenomenal benefit plan to keep HVAC unit in great condition year round. I would highly recommend him for your HVAC needs."
+2
Serving Hanahan, SC and surrounding areas
Approved
In business since 1983
Free estimates
Emergency services offered
"Zach arrived on time and quickly checked and repaired the Central Air Conditioning System. The system works better then it has since it was new. I plan to call Carney & Son 72 Degrees for future maintenance of our system."
+11
Serving Hanahan, SC and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"The HVAC technician who came out for my central air cleaner replacement did an outstanding job. He showed up on time, explained everything clearly, and made the whole process quick and stress-free. You could tell he really knew his stuff… He also took the time to answer my questions and even gave a few helpful tips to keep the system running smoothly. It’s hard to find reliable, honest service like that these days. He didn’t try to sell me the most expensive product but the one he said was best fit for my needs. Highly recommend if you want the job done right the first time!"
+13
Serving Hanahan, SC and surrounding areas
Approved (Corporate)
In business since 2001
Free estimates
Emergency services offered
"Very expensive but available quickly"
+2
Serving Hanahan, SC and surrounding areas
Approved
In business since 1982
Free estimates
Offers commercial services
"Highly Recommend! Stephen and his team did a great job replacing our Heat Pump system. My wife asked a LOT of questions and 5Star answered each and every one of them without complaint."
Serving Hanahan, SC and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1976
Free estimates
Credit card accepted
"Tony repaired air scrubber in good order."
Serving Hanahan, SC and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Emergency services offered
"Following a biannual inspection and cleaning appointment, a need was determined to open part of the ducting from the AHU to inspect a damper. The technician opened the duct, determined a damper stem appeared to be broken resulting in the damper falling to the bottom of the duct. Carolina Custom Air has already called making an appointment the next day to reinstall the damper after repair. Great work, great company. I recommend them completely."
Serving Hanahan, SC and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"The technician was very helpful."
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.
Need fascia and soffit repairs? Hiring a pro ensures proper installation, protects against pests, and prevents structural damage. Learn about common warning signs, material options, and how fascia and soffits safeguard your home from moisture.
Use this guide to budget for oak flooring installation based on factors such as room size, type of flooring, stain and sealant, and labor.
Budget for the cost to install a propane furnace based on factors such as furnace size, furnace type, efficiency level, labor rates, and more.
Discover how much it costs to hire a housekeeper based on factors like house size, required services, and cleaning frequency.
HomeAdvisor's Lighting Repair Cost Guide lists price information on fixing a light or light fixture, as reported by HomeAdvisor customers.
Use this guide to budget for wall oven installation costs based on factors such as oven type, power source, mounting type, labor, and more.