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

AC Repair in North Charleston, 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 Southeastern College Charleston near North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, 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 North Charleston, SC

An HVAC Company in North Charleston, 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 North Charleston, 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 The Establishment in North Charleston, 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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What Our Clients Are Saying

Latest News Near North Charleston, SC

North Charleston Fire Museum set to close and visitors take final trip down memory lane

NORTH CHARLESTON, S.C. (WCIV) — Laughter echoed through the halls of the North Charleston Fire Museum this week, even as visitors grappled with the bittersweet reality that the beloved attraction will soon close its doors for good.City officials announced Thursday that the North Charleston Fire Museum will shut down in less than 10 days, prompting families, firefighters, and longtime supporters to stop by for one final visit.Despite the news, the atmosphere inside the museum was far from somber. Children had a chance to e...

NORTH CHARLESTON, S.C. (WCIV) — Laughter echoed through the halls of the North Charleston Fire Museum this week, even as visitors grappled with the bittersweet reality that the beloved attraction will soon close its doors for good.

City officials announced Thursday that the North Charleston Fire Museum will shut down in less than 10 days, prompting families, firefighters, and longtime supporters to stop by for one final visit.

Despite the news, the atmosphere inside the museum was far from somber. Children had a chance to explore while parents watched them soak in hands-on lessons about fire safety and history.

“It would just be really good to keep it open,” said visitor Avry Dearie, who toured the museum with family members.“I feel good that we can come here before it closes and we didn’t come here too late and it’s already closed.”

For many families, the museum was more than just a collection of fire trucks—it was a place of tradition and connection. Visitor Kettley Kyre said bringing her grandchild to the museum had become a regular thing they did.

“I always pick him up from his mama and I would say, ‘Hey, let’s go see the fire trucks,’” Kyre said. “And he loves them.”

Beyond nostalgia, the museum served an important educational role, especially for children learning how to stay safe in emergencies. Interactive exhibits taught visitors about smoke detectors, fire escape plans, and what to do if a fire ever breaks out.

“We like to see the plans with smoke detectors, and we like to see fire escape plans so we can be ready if it ever happens,” Dearie said.

Local firefighters say the museum played a crucial role in connecting with the community in ways traditional classroom visits cannot.

“It’s a little more interactive than us coming to the schools,” said firefighter Kyle Goceliak. “The kids might grasp what we’re saying to them, but here they get to play with stuff and actually put their hands on it.”

As the countdown to closure continues, city officials announced anyone can visit the museum until its closing date, Feb. 14.

North Charleston housing coordinator to help move people into homes

NORTH CHARLESTON, S.C. (WCSC) — North Charleston is facing a housing crunch and city leaders say the need to act is urgent.“Let’s get these people from under these bridges. Let’s get these people from under these dilapidated homes. Let’s get these people off the sidewalks. Get them in these buildings,” Mayor Reggie Burgess said.In response, the city has created a new, hands-on position aimed at helping residents find housing faster. North Charleston’s first-ever housing coordinator work...

NORTH CHARLESTON, S.C. (WCSC) — North Charleston is facing a housing crunch and city leaders say the need to act is urgent.

“Let’s get these people from under these bridges. Let’s get these people from under these dilapidated homes. Let’s get these people off the sidewalks. Get them in these buildings,” Mayor Reggie Burgess said.

In response, the city has created a new, hands-on position aimed at helping residents find housing faster. North Charleston’s first-ever housing coordinator works directly with people searching for homes, tracking down available units and making sure vacancies don’t sit empty while families remain on waiting lists.

Karen Thrower was recently hired to fill that role.

“The job entails helping people, that’s it in a nutshell,” Thrower said. “My whole responsibility is to connect people to housing, which means I also need to connect them to developers. Those are the two things. This is a job about connecting people to resources.”

Thrower works directly with seniors, people experiencing homelessness, and low-income families. Much of her work involves walking residents through applications and stepping in when paperwork or eligibility issues stall the process.

She says one of the biggest obstacles residents face is simply knowing where to start.

“The biggest barrier, number one, is where do they go?” Thrower said. “A lot of people call, just in the short time that I’ve been here, asking, ‘Who can I talk to? Where can I go?’ I don’t know. A gentleman called today looking for housing for his 75-year-old mother. He said, ‘Are there any senior facilities, senior apartments that I can find? Where do I go to find those?”

The demand for housing in North Charleston remains high. Nearly 4,500 people are currently on the waitlist for one- and two-bedroom units through the North Charleston Housing Authority, which operates about 600 units across the city.

Thrower says part of her role is making sure residents are connected to organizations and services they may not even realize are available.

“They’ll begin to see a greater level of connectivity to nonprofits that serve individuals who are unhoused, who are medium to low income,” she said. “The job is to, again, begin to connect people to the resources that they normally don’t know where they are.”

City leaders acknowledge the new role won’t solve the housing shortage overnight. But they believe having a dedicated person focused on housing navigation can help move people into homes faster and reduce the number of units sitting empty across the city.

New compost drop-off site opens in North Charleston to prevent food waste

NORTH CHARLESTON, S.C. (WCSC) — Residents in North Charleston now have a new way to turn food scraps into compost, as a new residential drop-off site opens at Northwoods Park, expanding a regionwide effort to keep food waste out of landfills.The site officially launched with a community workshop at the Northwoods Gym, marking the second compost drop-off location in North Charleston. The first site, at Mosstree Park near Park Circle, opened about a year ago and has already collected more than 10 tons of food scraps, according to ...

NORTH CHARLESTON, S.C. (WCSC) — Residents in North Charleston now have a new way to turn food scraps into compost, as a new residential drop-off site opens at Northwoods Park, expanding a regionwide effort to keep food waste out of landfills.

The site officially launched with a community workshop at the Northwoods Gym, marking the second compost drop-off location in North Charleston. The first site, at Mosstree Park near Park Circle, opened about a year ago and has already collected more than 10 tons of food scraps, according to city officials.

Across the Lowcountry, the Charleston Composts program now includes 25 drop-off sites, diverting nearly 210 tons of food waste last year alone, which is equivalent to about 13 garbage trucks away from landfills.

City leaders say the success of the Mosstree Park site helped drive the expansion. Data from Charleston Composts showed a high number of participants from the Northwood Estates area, even though a drop-off location wasn’t nearby. Because Northwoods Park sits inside a residential neighborhood and hosts frequent community activities, officials identified it as an ideal location.

The project was funded through a $15,750 state grant from South Carolina’s Solid Waste Grant Program, which covered supplies, signage and outreach efforts. The grant is the sole funding source for the site.

Two compost bins are located near the baseball field at Northwoods Park, 8348 Greenridge Road. Residents must register online through the City of Charleston’s composting program to receive an access code. That code works at all participating drop-off sites throughout Charleston County, including locations in Charleston, Mount Pleasant, West Ashley, James Island, Johns Island, Daniel Island, Folly Beach, Isle of Palms and Sullivan’s Island.

Participants can collect food scraps using a provided caddy or any household container and are encouraged to drop them off weekly. Scraps can also be stored in a freezer if residents can’t make regular drop-offs.

Collected food waste is transported to the Bees Ferry Compost Facility, where it undergoes a 45-day composting process. The material is heated, turned and screened before becoming finished compost, which can then be used in gardens or purchased through retail partners.

Unlike at-home composting, the large-scale facility can process items such as dairy products, eggs and bones, though officials say oyster shells are not accepted and are instead recycled through a separate state program.

County sustainability leaders say composting plays a growing role in reducing methane emissions, preserving landfill space and lowering long-term waste disposal costs, especially as the Charleston region continues to grow.

Officials add that with food scraps making up a significant portion of household trash, expanding access to composting gives residents a simple way to make a measurable environmental impact.

North Charleston concert set to honor legacies of 2 SC civil rights leaders

NORTH CHARLESTON, S.C. (WCSC) — Two South Carolinians who documented and participated in the civil rights movement alongside Dr. Martin Luther King Jr. will be honored this weekend as living legends.Cecil J. Williams, who photographed Dr. King and the March on Washington for Jet Magazine, as well as John Reynolds, who marched with Dr. King in Selma, will receive awards at a concert Saturday titled “We’re Still Fighting.”Williams founded the Cecil J. Williams South Carolina Civil Rights Museum and capture...

NORTH CHARLESTON, S.C. (WCSC) — Two South Carolinians who documented and participated in the civil rights movement alongside Dr. Martin Luther King Jr. will be honored this weekend as living legends.

Cecil J. Williams, who photographed Dr. King and the March on Washington for Jet Magazine, as well as John Reynolds, who marched with Dr. King in Selma, will receive awards at a concert Saturday titled “We’re Still Fighting.”

Williams founded the Cecil J. Williams South Carolina Civil Rights Museum and captured pivotal moments of the movement through his camera lens.

“I believe that it was a destiny that someone needed to capture these great things and these great moments in time that were happening here in South Carolina,” Williams said. “A lot of times, South Carolina has been left out of the history that is told about the civil rights movement.”

Museum expanding to new location

Williams’ museum started in his home and is expanding to a new space in Orangeburg this year. He said the museum serves as a place for people to understand the sacrifices made during the civil rights era.

“We are the storytellers,” Williams said. “I think it’s important because it’s a part of our cultural development to bring about again a place where people can go and see what sacrifices were made for the privileges and the things that they can enjoy today.”

Reynolds, an Alabama native who grew up on a plantation, worked with Dr. King at the Southern Christian Leadership Conference before making Kiawah Island home. He documented his experiences in his memoir, “The Fight for Freedom: A Memoir of My Years in the Civil Rights Movement.”

“It’s about giving,” Reynolds said. “It’s nice to receive, but it’s more about giving. And I think when I look at myself, I think that’s what I pride myself on that I was willing to give and put my life on the line.

Reynolds is grateful for the honor of the living tribute award. While he was not able to fully understand the power of those historical moments in the past, it’s special to him they are continuing to build a legacy now.

Concert emphasizes ongoing struggle

Lowcountry Voices will host the concert honoring both men. Sandra Barnhart, the director’s assistant of Lowcountry Voices, said the event’s message is particularly relevant today.

“We need to honor and give our appreciation to people who are out there fighting for us,” Barnhart said. “In this climate that we’re in right now where things that we’ve held on to for so long are trying to be taken away, obviously the fight isn’t over.”

The choir chooses music to represent not only Dr. Martin Luther King Jr.’s legacy, but music that represents the power of the Civil Rights era.

The concert will take place Saturday at 5 p.m. at St. Matthews Baptist Church, located at 2005 Reynolds Avenue. Choir leaders encourage residents to arrive at 4 p.m. for a seat.

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