Trust J.W. Long Mechanical for Quality AC Repair & Installation

AC Repair in St. George, SC

As a homeowner in the Charleston, South Carolina area, you are well aware of how crucial it is to have a properly operating air conditioning system, especially during those hot summer days. When we say hot, we mean it - summers in South Carolina heat up quickly with high humidity and average high temperatures near 90°F across most of the state. During the hot months of the year, average temperatures range from the upper 60s in the Upstate to the mid-70s in the Lowcountry, but maximum temperatures can reach over 100 degrees.

On the hottest of hot days, having a reliable AC unit to cool you down is non-negotiable. When the weather heats up in The Palmetto State, and your AC is on the fritz, it's best to act quick and contact an HVAC repair company that can help.

At J.W. Long Mechanical, we provide you with quick, effective solutions for:

  • 01Air Conditioning Repair
  • 02Air Conditioning Installation
  • 03HVAC Installation
  • 04Dirty AC Filters
  • 05Low AC Refrigeran
  • 06AC Leak Repair
  • 07AC Coil Problems
  • 08Malfunctioning Thermostats
  • 09AC Blowing Hot Air
  • 10More

My AC Isn't Working. What's Going On?

You don't have to be a graduate from Dixie Technical College near St. George, SC, to know when something is wrong with your air conditioning. Being aware of common AC unit problems helps prevent breakdowns. Who wants to be stuck inside during a hot summer in St. George, SC without AC? Keep your eyes and ears peeled for these common issues:

01Your Air Conditioner Isn't Turning On

Waking up in the morning to find that the air conditioner won't turn on is incredibly frustrating. No matter how low you set the thermostat, the AC still refuses to engage.

AC Repair Technician St. George, SC

Cause

At times, this issue arises due to a tripped circuit breaker. Additional causes may include a defective thermostat or loose wiring.

Solution

Some AC problems can be fixed without any training. This is not one of those issues. Do not attempt to do any wiring work on your own. Call a respected HVAC company like J.W. Long Mechanical for AC repair in St. George, SC. Our techs have specialized equipment that can help diagnose the issue and advanced training to perform fixes.

02Your AC Won't Stop Running

This problem is a complete 180 from the entry above. It's completely normal for your air conditioner to work harder during hot weather, but it should still turn off at regular intervals. Addressing an AC that won't shut off is essential for protecting its key components and keeping your energy bills in check.

Air Conditioning Repair Service St. George, SC

Cause

This problem can stem from a variety of sources and is very common. You might be dealing with a faulty thermostat, a malfunctioning compressor, clogged air filters, or even issues with electrical components.

Solution

To start, try switching off the thermostat fan to check if that turns off the air conditioner. If it doesn't, reach out to our HVAC company. Our experts are skilled at quickly identifying issues and often handle repairs on the first visit.

03Your AC Unit Blows Out Hot Air

Why is your air conditioning unit blowing out warm air instead of cool? The last thing you want is to feel even hotter while you're already sweating inside your home. Unfortunately, this issue can happen even during the peak of summer.

Emergency AC Repair St. George, SC

Cause

Warm air could indicate a dirty air filter, blockages in the ducts, or debris that is leading to the compressor overheating. It's also possible that your refrigerant levels are low.

Solution

Change your air filters every one to two months to avoid clogs, and make sure to have your ducts cleaned at least once a year. Before you top off the refrigerant in your AC units, always have an AC repair specialist check for leaks. At J.W. Long Mechanical, our HVAC techs are very familiar with this task and can actually help save you money in the long run.

04HVAC System Leaks

Homeowners often find it challenging to detect refrigerant leaks since they typically occur within the coolant lines. However, if you notice brightly colored stains near your AC unit, it could indicate trouble. While some condensation outside the air conditioner is normal, excessive moisture may suggest a water leak.

HVAC Maintenance St. George, SC

Cause

Over time, the lines and connections in an AC system can deteriorate, which often results in refrigerant leaks. Water leaks are generally caused by blocked drainage pipes and malfunctioning condensate pumps.

Solution

If you spot a refrigerant leak, make sure to turn off the unit and reach out to our HVAC company in St. George, SC as soon as possible. Low refrigerant levels can lead to serious damage to the compressor, which is one of the costliest parts to replace. Thankfully, regular maintenance checks can uncover these issues, and our certified technicians can recharge the refrigerant as needed.

05Constant On and Off Cycles

This issue is commonly referred to as short cycling. Instead of running through a complete cooling cycle, the air conditioner repeatedly starts and stops. This can be a significant problem that may lead to compressor damage.

Residential Air Conditioning Repair St. George, SC

Cause

Sometimes, the issue can be as straightforward as dirty air filters or a thermostat that needs recalibrating. It's also possible that your air conditioner is simply too powerful for the size of your home.

Solution

The first step to solving this problem is to call an AC repair company to come out and look at your HVAC system. At J.W. Long, our team will diagnose your problem and provide cost-effective options for you to consider. If your AC system isn't the right fit for your home, new AC installation may be in store - especially for long-term savings.

AC Repair vs. Air Conditioning Installation in St. George, SC

Which is best: AC repair or new AC installation? The answer to that question will change depending on your circumstances. Some of the most logical reasons to go with AC repair instead of having a new unit installed are:

  • Age of AC Unit: If your air conditioner is less than 10 years old, it still has life.
  • One-Off Repair: If an HVAC technician from J.W. Long suggests a repair for a one-off issue, there's really no need to replace your unit. If the issue starts to happen more frequently, you may want to change your mind.
  • Great Deals and Financing: Before you start calculating the price of repairs, consider that J.W. Long Mechanical offers regular specials and financing for our services, which may make a repair far more feasible.
Licensed HVAC Contractor St. George, SC

Here are a few of the biggest reasons to have a new AC unit installed instead of paying for perpetual repairs:

Efficiency

Forget about the system breaking down. Even before your old air conditioner quit on you, it was already racking up some shocking electricity bills. For an aging system, there's only so much regular maintenance can accomplish. Eventually, it might be time to consider a new system, especially when you weigh the benefits of energy efficiency.

Boost the Value of Your Home

Even if you're not considering selling your home at the moment, installing a new air conditioner can boost your property's value if you ever decide to sell. It might even be a key factor in securing a buyer rather than losing out on a sale.

The Right Price at the Right Time:

It's not just true for repairs-it's equally relevant when considering new air conditioning systems. At J.W. Long Mechanical, we often run specials on new AC installations and even offer financing that can help you stick to a budget. If the cost of repairing your current system is nearing the price of a new unit, don't hesitate to invest in a new air conditioner. You'll likely recoup the price difference through energy savings.

Quick Repairs

Get the Air You Need for the Life You Lead

The best AC Repair and Installation services offer expertise and service, 24/7 availability for urgent situations.

AC Repair Technician St. George, SC

An HVAC Company in St. George, SC You Can Trust

At J. W. Long Mechanical Company, we've been providing heating and air conditioning services in South Carolina since 1950. Founded by J.W. Long and now led by Shannon Heber, our business is built on integrity, reliability, affordability, and quality work. We treat our customers like family and are passionate about exceptional service

Air Conditioning Repair Service St. George, SC

The J.W. Long Difference

Our experienced team has earned a reputation for excellence, winning the Trane Distinguished Dealer Award 17 times and being recognized as an independent Trane Comfort Specialist™ Dealer. You can trust us for top-notch heating and cooling products installed with expertise that maximizes performance and value for your budget.

For reliable air conditioning service or repair, J.W. Long's skilled technicians quickly restore your system. Looking for a new unit? Our comfort consultants make AC installation easier than Sunday morning at Aragosta Restaurant in St. George, SC. To make your life simpler and stress-free, we can provide a free assessment and design a system tailored to your needs and budget. We also provide indoor air quality products and dehumidification for your comfort on hot days.

If you're looking for an AC repair and installation expert with your best interests at heart, give our office a call today. It would be our pleasure to exceed your expectations.

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Latest News Near St. George, SC

Thomas Edward Jordan, Sr.

Thomas Edward Jordan, Sr. ObituaryThomas Edward Jordan, Sr., 70, husband of Barbara Jordan, entered into eternal rest on Wednesday, February 25, 2026.A Memorial Service will be held 3:00 PM, Sunday, March 1, 2026, at St. George Methodist Church. The family will receive friends an hour before the service in the church.Edward was born on May 29, 1955, in Orangeburg, a son of Miriam Berry Jordan and the late Cecil Bryan Jordan. He was a 1973 graduate and lifetime supporter of Dorchester Academy...

Thomas Edward Jordan, Sr. Obituary

Thomas Edward Jordan, Sr., 70, husband of Barbara Jordan, entered into eternal rest on Wednesday, February 25, 2026.

A Memorial Service will be held 3:00 PM, Sunday, March 1, 2026, at St. George Methodist Church. The family will receive friends an hour before the service in the church.

Edward was born on May 29, 1955, in Orangeburg, a son of Miriam Berry Jordan and the late Cecil Bryan Jordan. He was a 1973 graduate and lifetime supporter of Dorchester Academy. Edward deeply loved his career in the John Deere family business and his customer relationships with him. Edward was equally dedicated to his community as evidenced in his 27 years served on St. George Town Council and his devotion to the St. George Fire Department where he was active until 2012. He was a member and Past Master of Harmony Lodge #61 and a member of St. George Methodist Church. He loved NHRA drag racing, muscle cars and collecting antique John Deere tractors. He was an avid Clemson University supporter and fan.

Surviving are his wife, Barbara Jordan, of the home; mother of his children, Linda C. Jordan; children, Thomas E. (Kristen) Jordan, Jr., St. George, Rebecca J. (Kendall) Hill, Walterboro and Andrew (Kayla) Jordan, Bowman; grandchildren, Emma Grace and Lucy Hill, Khloe and Kallie Jordan, Samantha Gabaldon, Huntington Beach, CA; mother, Miriam Jordan; brothers, C. Bryan (Joye) Jordan, St. George and W. Grady (Kim) Jordan, Clemson; and a sister, Shirley J. (Joey) Westbury, Eutawville; an abundance of nieces and nephews.

Memorials may be made to Dorchester Academy, Booster Club, 234 Academy Road, St. George, SC 29477.

Events

There are no events scheduled.

You can still show your support by sending flowers directly to the family, or plant a tree in memory of Thomas Edward Jordan, Sr..

St. George MUSC facility to bring local health care to rural South Carolina

ST. GEORGE, S.C. (WCSC) — A new MUSC facility will bring primary care, mental health services and radiology to rural Dorchester County residents who have been traveling an hour for basic medical care.The Medical University of South Carolina facility will open at the end of the month, helping expand medical care for underserved communities in St. George and surrounding areas. New federal funding in the amount of $709,000 is covering 50% of the cost, upgrading the original plan to include a permanent X-ray machine and mobile MRI e...

ST. GEORGE, S.C. (WCSC) — A new MUSC facility will bring primary care, mental health services and radiology to rural Dorchester County residents who have been traveling an hour for basic medical care.

The Medical University of South Carolina facility will open at the end of the month, helping expand medical care for underserved communities in St. George and surrounding areas. New federal funding in the amount of $709,000 is covering 50% of the cost, upgrading the original plan to include a permanent X-ray machine and mobile MRI equipment.

“We’re probably serving folks from Orangeburg County, from Colleton County, from Holly Hill that may be able to come closer to St. George to get service,” David Chinnis, the Dorchester County Council chairman said. “So even though this is a Dorchester County project very specifically in the county, the ability for MUSC to serve the region in an area that was greatly underserved with a level of care, not only with MUSC, but with the Department of Mental Health, it’s critical in nature.”

Officials applied during the 2025 cycle for this project and received approval less than a year after breaking ground on the facility.

County officials have worked to address the health care gap since 2016, according to Bryan Haver, Dorchester County’s assistant county administrator.

“Back around 2016, 2017, the county started working on their strategic plan,” Haver said. “County council along with the St. George community heard from the western portion of the county that there was a need to expand health care in the western area of the county and that was built into the strategic plan.”

The facility represents an upgrade from the original plan, which called for mobile equipment only. That permanent X-ray machine will serve residents from surrounding counties who previously drove 45 minutes to an hour for basic imaging services.

The building is also being refitted to have a radiology area for the MRI machine.

“This steps it up a little bit closer to what the ultimate goal is and that is emergency care in off hours when this is not open,” Chinnis said. “It’s not there yet, but this is a piece of that puzzle that the community was asking for.”

County officials plan to expand the facility beyond primary care to include an in-house pharmacy and blood work services.

Once the facility opens, Dorchester County will look to expand the medical hours so as many residents as possible can get help when they need it.

Interstate 95: Tanker Fire Doused

Getting your Trinity Audio player ready... Interstate 95 in South Carolina – a disaster zone under the best of circumstances – was closed in both directions for several hours on Friday (January 23, 2026) due to a tanker fire.The conflagration was revealed to the public at approximately 12:03 p.m. EST by the Dorchester County Sheriff’s Office (DCSO).“The interstate will remain closed for an extended period,” the agency warned...

Getting your Trinity Audio player ready...

Interstate 95 in South Carolina – a disaster zone under the best of circumstances – was closed in both directions for several hours on Friday (January 23, 2026) due to a tanker fire.

The conflagration was revealed to the public at approximately 12:03 p.m. EST by the Dorchester County Sheriff’s Office (DCSO).

“The interstate will remain closed for an extended period,” the agency warned on Facebook. “Drivers are strongly encouraged to avoid I-95 near mile marker 72 until further notice.”

Mile marker 72 is located near St. George, S.C., a town of 1,850 people situated approximately 46 miles northwest of downtown Charleston, S.C.

At 1:45 p.m. EST, the agency noted that the Interstate’s southbound lanes (headed from Santee, S.C. to Savannah, Georgia) had been reopened but its northbound lanes (headed in the opposite direction) remained shut down.

“Motorists are advised to continue using alternate routes and expect delays in the area,” the agency noted. “Additional updates will be provided as information becomes available.”

The driver of the tanker was able to flee the vehicle before it was consumed by the blaze. According to local law enforcement, he managed to avoid any injury in connection with the incident.

This is a developing situation, so please check back in the event we are able to obtain updated information…

is the founding editor of the news outlet you are currently reading. Prior to founding FITSNews, he served as press secretary to the governor of South Carolina. He lives in the Midlands region of the state with his wife and eight children.

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