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

AC Repair in Daniel Island, 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 Daniel Island Academy near Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, 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 Daniel Island, SC

An HVAC Company in Daniel Island, 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 Daniel Island, 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 Langdon's Restaurant Wine Bar in Daniel Island, 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 Daniel Island, SC

Daniel Island Publix makes its long-awaited return — now twice the size

CHARLESTON — After nearly a year of off-island grocery runs, Daniel Island residents are finally getting their only full-service grocery store back — now twice the size with a pharmacy and a covered patio seating area.The grocery store opened Dec. 3 bright and early at 7 a.m. following a ribbon-cutting.The new 50,472-square-foot supermarket at Daniel Island Town Center at 162 Seven Farms Drive has about 70 percent more shelf space than the 27,000-square-foot store it replaced.The original supermarket opened i...

CHARLESTON — After nearly a year of off-island grocery runs, Daniel Island residents are finally getting their only full-service grocery store back — now twice the size with a pharmacy and a covered patio seating area.

The grocery store opened Dec. 3 bright and early at 7 a.m. following a ribbon-cutting.

The new 50,472-square-foot supermarket at Daniel Island Town Center at 162 Seven Farms Drive has about 70 percent more shelf space than the 27,000-square-foot store it replaced.

The original supermarket opened in 2002.

In the new store, aisles are wider, departments are expanded and shelves are stocked to capacity.

“This is not just a rebuild, it's a complete transformation,” said Kim Reynolds, community relations manager for the Florida-based chain, during a preview on Dec. 2. “A heartfelt thank you to our customers and our community for your patience and understanding throughout this process.”

The construction lasted nearly a year, leaving island residents without a grocery store for most of 2025.

George Renton, president of the Daniel Island Exchange Club, said many residents have been shopping at the Publix at Point Hope Commons on Clements Ferry Road, about seven miles away. The island’s other retailers helped fill the grocery gap, though, such as meat and grab-and-go-provisions from the upstate-based NY Butcher Shoppe.

The original Publix closed last Christmas Eve and was demolished soon after, although replacement plans have been in the works since 2017. The store held to its anticipated fourth-quarter 2025 timeline for reopening.

Customers will recognize many familiar faces at the new store, as the grocery store chain has brought back nearly half of its previous staff which were dispersed throughout other Lowcountry stores during the rebuild.

The Daniel Island Publix has 140 employees and held several job fairs before re-opening.

Opening day will be all hands on deck with support staff to help make shopping seamless.

“We have a lot of support team here for the opening, even people from North Carolina helping,” said store manager Christy Pfuntner.

More than two decades ago, Publix secured an exclusive agreement with the developer of Daniel Island, guaranteeing it would be the only supermarket within the master-planned community, which is now nearly built out.

The grocer purchased the 5-acre Daniel Island Town Center a decade ago for $13.8 million, according to public land records. It also owns an adjacent 1.2-acre parcel on Island Park Drive.

Charleston City Council member Mike Seekings, whose district includes Daniel Island, said the size and stature of the new Publix reflects the success of the community first annexed into the city in the early 1990s.

“I've been around long enough to remember when Daniel Island was just a sandbar and (buildings) were just coming out of the ground,” Seekings said. “To predict that you’d have a facility like this on Daniel Island 10 or 15 years ago, I never would have imagined that. This is a testament to how Daniel Island has succeeded.”

Publix’s roots trace back to 1930, when founder George W. Jenkins opened the first store in Winter Haven, Fla.

Since then, the chain has grown into one of the 10 largest-volume supermarket operators in the country — and the largest employee-owned company in the United States — with 1,423 store locations and more than 260,000 workers.

Charleston area man captures brilliant meteor on camera. It was an accident.

DANIEL ISLAND — A bright, white shooting star blazed across the dark night sky this week in a video captured by a local resident who started his quest with the intent of spying on furry-tailed rodents.Charlie Truesdale purchased an outdoor camera to record squirrels nesting under the solar panel on his roof. The camera didn’t do a good job catching the critters in the act, he said. He had the camera aimed at the roof, but at some point it was knocked over, pointing at the sky instead.“Maybe the evil squirrels ...

DANIEL ISLAND — A bright, white shooting star blazed across the dark night sky this week in a video captured by a local resident who started his quest with the intent of spying on furry-tailed rodents.

Charlie Truesdale purchased an outdoor camera to record squirrels nesting under the solar panel on his roof. The camera didn’t do a good job catching the critters in the act, he said. He had the camera aimed at the roof, but at some point it was knocked over, pointing at the sky instead.

“Maybe the evil squirrels did it, I don’t know,” Truesdale told The Post and Courier.

The camera was in this position for about a month. He left it there because its night vision captured the constellations better than his eyes, he said. He made a few time lapse videos of the stars rotating around the Earth.

On Nov. 17, he got a phone notification that the camera detected activity. He said that was surprising, considering the camera was aimed at the sky.

He pulled up the video, taken at 3:30 a.m., to find he captured a large meteor streaking across the Lowcountry sky.

“It was originally put there to spy on squirrels,” he said. “It ended up spying on the sky.”

The night he caught the meteor on video was the peak of the annual Leonid meteors. This major meteor shower is known for Earth-grazer meteors and fireballs that persist longer than an average meteor streak, according to the National Aeronautics and Space Administration.

(Clicking on any video link constitutes consent to collection and sharing of your personal video viewing data with various Post and Courier partners.)

Though the show is now past its peak, stargazers can still spot the Leonid meteors through early December.

For the best chance to view the shooting stars, NASA offers these tips:

The Leonid shower is not the only celestial event viewable in the Charleston area. The Taurid meteor shower is active now, with the Southern Taurids visible through Nov. 20 and the Northern Taurids (which peaked Nov. 11-12) visible to Dec. 10.

The American Meteor Society predicts the Geminid meteor shower will offer a unique chance to view colorful meteors, depending on the types of minerals and materials that make them up, The Post and Courier previously reported. The cosmic event is likely visible from Dec. 4-24 with the peak predicted Dec. 13-14.

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