(843) 873-0371AC Repair in 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
- Trust J.W. Long Mechanical for Quality AC Repair and Installation
- AC Repair in Charleston, SC
- My AC Isn't Working. What's Going On?
- Your Air Conditioner Isn't Turning On
- When is the Right Time for New AC Installation in Charleston, SC?
- Think About the Age of Your Air Conditioner
- Factors That Affect the Lifespan of Your Air Conditioning Unit
- Take an Inventory of Your Air Conditioner
- AC Repair vs. Air Conditioning Installation in Charleston, SC
- An HVAC Company in Charleston, SC You Can Trust
My AC Isn't Working. What's Going On?
You don't have to be a graduate from College of Charleston near 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 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.
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 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.
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.
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.
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 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.
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.
When is the Right Time for New AC Installation in Charleston, SC?
At J.W. Long Mechanical, we get questions from homeowners and business owners every day about their HVAC units. One of the most common questions we get revolves around whether it's smarter to keep an older AC system or to have a new AC unit installed. As is the case with most things in life, it depends on your unique situation. To help answer that question, we've come up with a few of the biggest signs that it's time to call our HVAC company for air conditioning installation.
Think About the Age of Your Air Conditioner
Older air conditioners tend to be less efficient than the latest models on the market. According to Energy Star, if your air conditioner is over 10 years old, it's worth considering an upgrade. If it's more than 15 years old, you should definitely think about replacing it, as this typically marks the average lifespan of most cooling systems.
How Long Do AC Systems Usually Last?
Even Nathaniel Russell House in Charleston, SC will degrade over time, and the same can be said for air conditioners. If you're a homeowner who has recently bought a new air conditioning unit or faced AC issues in the past, you might wonder, “What's the typical lifespan of an air conditioner?” It's a valid concern, considering the significant investment involved.
While the answer can vary, choosing a reputable company like J.W. Long Mechanical that installs reliable HVAC brands provides peace of mind. These units are rigorously tested for durability. Back to the question: Generally, an air conditioner can last anywhere from 15 to 20 years with proper maintenance, but there are several factors that affect that time span.
Factors That Affect the Lifespan of Your Air Conditioning Unit
Just like you need to keep your car in good shape with regular tune-ups, your HVAC system also requires consistent maintenance. Some people believe that after the unit stops working for the first time and the warranty has expired, it's time to invest in a new one. Others may choose to pour money into repairs-even when the costs add up-to extend the life of their system by a few more years. The choice you make can greatly impact how long your AC unit will last.
Outside of maintenance, other factors that affect air conditioning lifespan include:
- Level of Installation Quality
- Air Quality (salt and other corrosives that degrade machinery)
- Frequency of Use
- Wear and Tear
- Climate Factors (extreme humidity or freezing temps)
Try the $5,000 Rule of Thumb
Some experts suggest using the $5,000 rule to help decide if it's time to replace your cooling unit. To apply this rule, simply multiply the age of your air conditioner by the cost of repairs. If the total exceeds $5,000, it's wise to think about getting a new unit. If it's less, repairing the existing one may be your best bet.
For example, if your air conditioner is 8 years old and the repair estimate is around $400, that brings you to a total of $3,200. In that case, you should reach out to J.W. Long for AC repair. On the other hand, if those repairs are estimated at $700, the total jumps to $5,600, which means it's time to consider replacing the air conditioner with one of our expert installation services.
Take an Inventory of Your Air Conditioner
If you're struggling with the repair vs replace debate, try making a checklist of how your HVAC system is performing - especially in the summer when you're using air conditioning. Try checking for the following:
- Make sure the temp in your home stays consistent without much fluctuation.
- Make sure every room in your home is cooled evenly
- Listen for strange sounds when your AC unit starts up.
- Check your power bills and make sure you don't see drastic spikes in energy use.
Life tends to move swiftly, and before you know it, your air conditioner might be struggling to keep up. It's essential to take a moment to check in on your unit and see if it's performing as well as it always has or if there might be some issues that need attention.
If you discover that your air conditioner isn't in optimal shape, it's a good idea to have an HVAC professional come by for an inspection. They can identify any simple fixes that could solve the problem or highlight more significant concerns that you should start considering.
Find Out if You're Using R-22
Older air conditioners typically rely on R-22 refrigerant, which has been linked to significant environmental harm. If your air conditioner uses this type of refrigerant, it may be time to think about upgrading to an eco-friendly model.
Additionally, the cost of R-22 has skyrocketed due to its decreased availability, as production of this refrigerant has ceased. While you might still find R-22 for repairs on older units, all new air conditioning systems are designed to use the newer R410-A refrigerant, making them a more practical choice in the long run.
AC Repair vs. Air Conditioning Installation in 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.
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.
An HVAC Company in 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
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 Circa 1886 Restaurant in 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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Latest News Near Charleston, SC
How to watch UNC Wilmington Seahawks vs. Charleston (SC) Cougars: Live stream info, TV channel, game time | March 1
Data Skrivehttps://collegesportswire.usatoday.com/story/sports/college/2026/03/01/unc-wilmington-seahawks-charleston-cougars-2026-ncaa-mens-basketball-how-watch-live-stream-game-time/88931233007/
The UNC Wilmington Seahawks (25-4, 14-2 CAA) bring a six-game winning streak into a home contest versus the Charleston (SC) Cougars (20-10, 13-4 CAA), who have won four straight. It starts at 7 p.m. ET (on CBS Sports Network) on Sunday, March 1, 2026.In its previous game, UNC Wilmington were winners at home over N.C. A&T, 88-65. Its top performers were Patrick Wessler (19 PTS, 57.14 FG%) and Jahnathan Lamothe (15 PTS, 55.56 FG%, 5-8 from 3PT). In its previous game, Charleston (SC) won on the road over Hampton 85-71, with Martin Ka...
The UNC Wilmington Seahawks (25-4, 14-2 CAA) bring a six-game winning streak into a home contest versus the Charleston (SC) Cougars (20-10, 13-4 CAA), who have won four straight. It starts at 7 p.m. ET (on CBS Sports Network) on Sunday, March 1, 2026.
In its previous game, UNC Wilmington were winners at home over N.C. A&T, 88-65. Its top performers were Patrick Wessler (19 PTS, 57.14 FG%) and Jahnathan Lamothe (15 PTS, 55.56 FG%, 5-8 from 3PT). In its previous game, Charleston (SC) won on the road over Hampton 85-71, with Martin Kalu (21 PTS, 58.33 FG%) and Connor Hickman (16 PTS, 60.00 FG%, 2-3 from 3PT) the standout performers.
To prepare for this college hoops showdown, here is everything you need to get ready for Sunday's action.
Check out: USA TODAY Sports Coaches Poll
UNC Wilmington vs. Charleston (SC): How to watch on TV or live stream
Check out the all new PLAY hub with puzzles, games and more!Seahawks vs. Cougars odds and spread
College basketball odds courtesy of BetMGM Sportsbook. Odds updated Sunday at 3:34 p.m. ET. For a full list of sports betting odds, access USA TODAY Sports Betting Scores Odds Hub.
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Charleston (SC) puts road win streak on the line against N.C. A&T
The Associated Presshttps://www.kens5.com/article/syndication/associatedpress/charleston-sc-puts-road-win-streak-on-the-line-against-nc-at/616-bdb7d4e8-2135-4c06-97b6-f2e9af77eaec
Charleston (SC) aims to continue its three-game road win streak with a victory over N.C. A&T. Thursday's matchup is the first of the season between the two...Charleston (SC) Cougars (17-10, 10-4 CAA) at North Carolina A&T Aggies (10-14, 3-10 CAA)Greensboro, North Carolina; Thursday, 7 p.m. ESTBOTTOM LINE: Charleston (SC) will try to keep its three-game road win streak alive when the Cougars play N.C. A&T.The Aggies have gone 6-4 in home games. N.C. A&T averages 11.9 turnovers per game and is 3-4 wh...
Charleston (SC) aims to continue its three-game road win streak with a victory over N.C. A&T. Thursday's matchup is the first of the season between the two...
Charleston (SC) Cougars (17-10, 10-4 CAA) at North Carolina A&T Aggies (10-14, 3-10 CAA)
Greensboro, North Carolina; Thursday, 7 p.m. EST
BOTTOM LINE: Charleston (SC) will try to keep its three-game road win streak alive when the Cougars play N.C. A&T.
The Aggies have gone 6-4 in home games. N.C. A&T averages 11.9 turnovers per game and is 3-4 when it has fewer turnovers than its opponents.
The Cougars have gone 10-4 against CAA opponents. Charleston (SC) is the CAA leader with 25.5 defensive rebounds per game led by Christian Reeves averaging 5.1.
N.C. A&T averages 74.7 points per game, 0.8 more points than the 73.9 Charleston (SC) gives up. Charleston (SC) averages 6.5 made 3-pointers per game this season, 1.3 fewer made shots on average than the 7.8 per game N.C. A&T allows.
The matchup Thursday is the first meeting of the season for the two teams in conference play.
TOP PERFORMERS: Lewis Walker is averaging 19.1 points and 5.3 rebounds for the Aggies. Trent Middleton is averaging 13.1 points over the last 10 games.
Jlynn Counter is scoring 16.0 points per game and averaging 5.3 rebounds for the Cougars. Reeves is averaging 14.7 points and 9.8 rebounds over the last 10 games.
LAST 10 GAMES: Aggies: 3-7, averaging 71.8 points, 32.1 rebounds, 10.6 assists, 5.4 steals and 4.0 blocks per game while shooting 44.7% from the field. Their opponents have averaged 77.0 points per game.
Cougars: 6-4, averaging 74.6 points, 33.7 rebounds, 13.3 assists, 5.2 steals and 4.8 blocks per game while shooting 44.7% from the field. Their opponents have averaged 73.5 points.
The Associated Press created this story using technology provided by Data Skrive and data from Sportradar.
Copyright 2025 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
My Charleston Weekend: Beach fests, block parties and beads
Jessica Cuevashttps://www.postandcourier.com/charleston_scene/events/my-charleston-weekend-february-20-22/article_a481e7bf-506f-435e-80e8-63d8a29b93a7.html
Jump into another weekend with some spectacular S.C. events.Pamper your palates and support a good cause at AMOR Fest or find your next read at Captain's Comic Expo.Then, enjoy some good eats for a good cause at Home Team's Rock the Block, head to Folly Beach for their Sea and Sand Festival and throw some beads at the upcoming Mardi Crawl in Park Circle.SATURDAY (FEB. 21)21st Annual Mardi CrawlThrow on a quick fit of beaded necklaces and feather boas, and march across Park Circle like it'...
Jump into another weekend with some spectacular S.C. events.
Pamper your palates and support a good cause at AMOR Fest or find your next read at Captain's Comic Expo.
Then, enjoy some good eats for a good cause at Home Team's Rock the Block, head to Folly Beach for their Sea and Sand Festival and throw some beads at the upcoming Mardi Crawl in Park Circle.
SATURDAY (FEB. 21)
21st Annual Mardi Crawl
Throw on a quick fit of beaded necklaces and feather boas, and march across Park Circle like it's the "Big Easy" at the annual Mardi Crawl this Saturday, Feb. 21. Take part in a silent auction starting at noon at Commonhouse Aleworks, 4831 O'Hear Ave., North Charleston, peruse a sprawling vendors market and try your hand at the Mardi Crawl, which will take you to many local hot spots. Participating locations include Commonhouse Aleworks, Dig in the Park, Wyrd Sisters, Tattooed Moose and more. Each location will be raising funds for their own designated charities and nonprofits, including Carolina Children's Charity, Pet Helpers, the Ronald McDonald House Charities of Charleston and more. The event culminates in a special headlining set from Dave Landeo and the Sol Beats. Tickets are $35 per person. For more info on the bar crawl and vendor details, head to tinyurl.com/bs88tpxk.
SATURDAY (FEB. 21)
Home Team's Rock the Block
Hope you've got an appetite this weekend, because Home Team is hosting their annual Rock the Block fundraiser this Saturday, Feb. 21. The pitmasters will be firing up their smokers from 11 a.m. to 5 p.m. with all forms of barbecue and Lowcountry delights. Enjoy dishes from award-winning guest chefs and tasty Southern favorites from Swig and Swine, Home Team BBQ and more. There will also be live music from Sam Morrow, the Brandon Boone Band and Eddie 9V on stage. This fundraiser generates proceeds for local nonprofits Hogs for the Cause and the Ronald McDonald House Charities of Charleston. General admission is $30 ahead of the event, $35 at the gate and $225 for VIP tickets that provide exclusive access to a VIP Lounge with an open bar. Hungering for some more details? Then take your taste buds over to tinyurl.com/3s374ucv.
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