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

Community cats removed from North Charleston Home Depot, caregivers demand answers

NORTH CHARLESTON, S.C. (WCSC) — Questions are growing after several community cats that had been living for years near a North Charleston The Home Depot suddenly disappeared.Caregivers say the cats weren’t just strays — they were part of a managed colony under a trap-neuter-return program, where animals are sterilized, vaccinated, and returned to the area they know.For Jennifer Conlon, those cats became part of her daily life.“They’ve been with us for years. We’ve spent so much time fi...

NORTH CHARLESTON, S.C. (WCSC) — Questions are growing after several community cats that had been living for years near a North Charleston The Home Depot suddenly disappeared.

Caregivers say the cats weren’t just strays — they were part of a managed colony under a trap-neuter-return program, where animals are sterilized, vaccinated, and returned to the area they know.

For Jennifer Conlon, those cats became part of her daily life.

“They’ve been with us for years. We’ve spent so much time fixing them, feeding them…they have homes here,” Conlon said.

But recently, she says, that routine was disrupted.

“A couple of them disappeared… and we found out they were trapping them over at Home Depot,” she said.

Advocates say posts began circulating online, alleging that a trapper had been hired to remove cats from the property.

Maggie Cloninger, president and co-founder of Hope for Feral Hearts, says there are still more questions than answers.

“There was a post in a private group saying this Home Depot had set out traps to remove colony cats that have lived here for years… and we haven’t been able to confirm where they went,” Cloninger said.

In a statement to Live 5 News, Home Depot acknowledged the situation, saying in part that it has asked the store to stop working with the trapper involved.

Still, caregivers say the biggest concern remains the cats’ whereabouts.

Under Charleston County ordinance, free-roaming cats that are part of a managed TNR program are allowed to remain in the community if properly cared for.

Animal welfare experts say those programs are designed to reduce overpopulation and stabilize colonies over time.

“Spaying and neutering these cats and returning them where they live… it prevents more from moving in. It’s what actually controls the population,” a representative with Charleston Animal Society said.

Advocates say if cats need to be removed, there is typically a process involving animal control, microchip checks and relocation to a verified rescue or sanctuary.

They say it’s unclear whether those steps were followed in this case.

Cloninger says relocating cats improperly can put them at serious risk.

“They rely on caregivers for food and shelter… so putting them somewhere unfamiliar—they don’t know how to survive. Right now, they could be fighting for their lives,” she said.

For those who cared for them, the situation is personal.

Until more information is released, caregivers say they’re left asking one question: “Where are the cats?”

Charleston residents get a look at designs for affordable housing, but are skeptical about feedback

CHARLESTON — Community members got their first real glimpse at potential designs for future affordable housing that city staff and architects from Europe and Savannah have been working on this week.The $125,000 week-long design effort is part of Mayor William Cogswell’s housing initiative called Project 3500 that aims to add 3,500 new affordable units by 2032 and redevelop wide swaths of the peninsula.Most onlookers March 18 marveled at the sketches and mock-ups that embrace Charleston’s historic charm. But so...

CHARLESTON — Community members got their first real glimpse at potential designs for future affordable housing that city staff and architects from Europe and Savannah have been working on this week.

The $125,000 week-long design effort is part of Mayor William Cogswell’s housing initiative called Project 3500 that aims to add 3,500 new affordable units by 2032 and redevelop wide swaths of the peninsula.

Most onlookers March 18 marveled at the sketches and mock-ups that embrace Charleston’s historic charm. But some expressed concerns about whether longtime low-income residents currently living at sites the city is targeting will be displaced.

Others wondered whether those residents might not have been able to attend the 5 p.m. weekday event held at the city’s Dock Street Theater downtown.

“This is very much still a work in progress,” Cogswell said adding that critiques about the accessibility of the location were valid.

Before any of the designs are finalized, Cogswell said city staff will go on the road and take them to the neighborhoods where residents will be most impacted.

To meet the city’s ambitious housing goal, Cogswell wants to redevelop nearly 100 acres across the peninsula combining properties the city owns with Charleston Housing Authority sites that were already earmarked for redevelopment, along with land the county owns along Morrison Drive.

Cogswell brought in architects and designers he and other city leaders met during a tour of Europe late last year to help plan and design the targeted sites into communities of density-packed, smaller buildings that look like downtown Charleston, rather than the tall boxy apartment complexes that have popped up along the upper peninsula.

“I’m gravitating toward the designs that keep it looking historic,” said Bri Meyer, a student blacksmith at the American College of the Building Arts. “Beauty shouldn’t dictate what you can afford.”

The city hopes developers, who will eventually take the designs and build them, will partner with the college in an effort to keep building costs down and also keep that future skilled workforce local.

Cassandra Stilley, who is studying stonemasonry, said the city is taking a novel approach by considering historic designs and materials to make new spaces where you can’t tell which apartment is affordable and which is “high end.”

City says it wants feedback, but how will it be documented?

Cogswell began the March 18 open house by saying that the design teams wanted feedback. But there was no way to record any suggestions, compliments or critiques residents brought. Cogswell said they were listening and would incorporate the verbal feedback as they move forward.

On March 16, at the kick-off event, Cogswell was caught off guard when the audience members asked questions about costs and the potential displacement of residents living at the targeted sites.

“It doesn’t feel true to genuine feedback,” said Lin Jay, an organizer with the Friends of Gadsden Creek.

Only a few acres remain of the once vibrant tidal creek that runs near Gadsden Green, one of the housing authority properties that is being redesigned. Jay said mock-up panels on display showed part of the remaining creek filled in and built over, which she said is alarming.

She’s less interested in the designs and called it “shiny stuff.” Her focus is wanting to preserve the natural amenity that the creek provides to the community surrounding it.

“I don’t think anyone’s against affordable housing,” said Margaret Ling, who lives near the Wagner Terrace neighborhood. “But are we actually listening to the people who live there?”

Cogswell has said that adding nearby city properties to the mix allows for a staggered build out, which will also help ensure that those currently living in Housing Authority properties won’t be displaced while the re-development happens.

“This effort is about creating housing that reflects Charleston and works for the people who call it home,” Cogswell said in a statement the city sent after this story published online. “We are committed to a thoughtful process, and we look forward to hearing from residents in the weeks ahead.”

The city plans to distribute comment cards at the final workshop on March 20, launch an online feedback form to collect input from residents across the city, and bring the preliminary design concepts directly into neighborhoods through a series of community meetings and pop-up events, according to the news release.

The week-long workshop will end March 20 with a wrap-up presentation where the design team will show the week’s progress and discuss next steps. That event starts at 5 p.m. at Dock Street Theater, 135 Church St.

Editor’s note: This story has been updated to reflect the updated location of the final workshop on March 20, and the city’s response to how it will handle feedback going forward.

Community baby shower draws 1K families in North Charleston

NORTH CHARLESTON, S.C. (WCSC) — More than 1,000 families attended a community baby shower Saturday, with some arriving hours in advance, as Molina Healthcare of South Carolina and community partners distributed supplies to new and expectant parents.Over 5,000 diapers, baby wipes, baby clothing and food were distributed at the event. The Charleston Hispanic Association also gave out more than 10 tons of free food. Participants gathered information about maternal health resources and Molina member benefits.Molina Healthcare...

NORTH CHARLESTON, S.C. (WCSC) — More than 1,000 families attended a community baby shower Saturday, with some arriving hours in advance, as Molina Healthcare of South Carolina and community partners distributed supplies to new and expectant parents.

Over 5,000 diapers, baby wipes, baby clothing and food were distributed at the event. The Charleston Hispanic Association also gave out more than 10 tons of free food. Participants gathered information about maternal health resources and Molina member benefits.

Molina Healthcare of South Carolina organized the event in partnership with Healing Hurts Ministries, the Charleston Hispanic Association and Learn4Life.

David Irizarry, senior growth specialist for community engagement at Molina Healthcare, said two out of every five families skip a meal to pay for diapers.

“Today when you come out and you look around and you see moms smiling, and families coming together, it fills our heart, because we know these events are making a difference,” Irizarry said.

Dr. Tamela Brown, principal of Learn4Life High School Charleston, said the event brought the community together.

“It’s just a beautiful blend of community partners and education where our community can come in and get what they need,” Brown said.

Learn4Life is a tuition-free, nonprofit public school that provides students with learning opportunities, life skills and career training. To learn more about it, head to the Learn4Life website.

Nefateri Smalls, executive director of Healing Hurts Ministries, said the turnout reflected the scale of need in the community.

“I always have an expectation for the lives that we’re going to impact. But when I see them in numbers, it just lets you know that the need is not only great but that they recognize that there’s someone there that’s going to walk alongside them. So this, it really makes my heartbeat,” Smalls said.

The event comes as financial pressure on families continues to grow. According to data from the National Diaper Bank, the cost of diapers has increased by more than 20%. Rising gas and grocery prices have added to the strain on expectant families.

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.

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