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

AC Repair in Seabrook 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 St Christopher Camp and Conference Center near Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook 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 Seabrook Island, SC

An HVAC Company in Seabrook 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 Seabrook 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 The Ocean Room in Seabrook 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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Latest News Near Seabrook Island, SC

Concern Increasing For Tropical Troubles In SC Early Next Week

While there remains considerable uncertainty about the forecast for early next week, the trends over the last 24 hours or so have not been favorable for the Palmetto State. Tropical Storm Humberto formed at 5 p.m. Wednesday, as expected. We continue to monitor the progress of the tropical wave we're calling Invest Area AL94.This loop of visible satellite imagery shows the features of interest across the Atlantic Basin around midday Thursday, including Humberto, Invest Area AL94, and Hurricane Gabrielle approaching the Azores....

While there remains considerable uncertainty about the forecast for early next week, the trends over the last 24 hours or so have not been favorable for the Palmetto State. Tropical Storm Humberto formed at 5 p.m. Wednesday, as expected. We continue to monitor the progress of the tropical wave we're calling Invest Area AL94.

This loop of visible satellite imagery shows the features of interest across the Atlantic Basin around midday Thursday, including Humberto, Invest Area AL94, and Hurricane Gabrielle approaching the Azores.

Image Source: University of Wisconsin RealEarth

You can also see Hurricane Gabrielle over the eastern Atlantic marching at double time toward the Azores, but it's not a threat to South Carolina.

Humberto is also unlikely to threaten South Carolina directly. However, the National Hurricane Center's (NHC) forecast calls for Humberto to become a Category 3 Hurricane over the western Atlantic before it gradually weakens and splits the Bermuda and Hatteras uprights around the middle of next week.

Humberto won't have any direct effect on South Carolina. However, the swells it will generate will bring rough surf and rip currents to our beaches in the coming days, along with potentially hazardous marine conditions on our coastal waters. Humberto's behavior going forward is one of the several variables that bring uncertainty into the forecast for how AL94 might affect us early next week. Its track and intensity will influence AL94's future track and intensity.

AL94, the feature that could impact South Carolina early next week, remains a disorganized tropical wave that's moving through the Dominican Republic and Haiti today. A circulation is trying to form just north of Haiti this afternoon, but the thunderstorms are hanging back over the Dominican Republic. NHC's current forecast calls for a low-pressure area to form over the southern Bahamas or just north of Cuba by Saturday morning, which will quickly develop into a tropical cyclone. Their outlook from this afternoon indicates an 80 percent chance for it to be a tropical cyclone by Saturday afternoon.

Most computer model guidance has come in line with a tropical cyclone forming in this area by Saturday night, so we have at least moderate confidence in that part of the forecast. Confidence is somewhat lacking right now because AL94 remains disorganized. Models tell us to trust the process, but that will be hard for me until I see thunderstorms erupting near the developing circulation center. The longer it takes for this to happen, the greater the chances are that AL94 will slip farther west than expected and end up over Cuba or Florida.

Assuming that AL94 consolidates and becomes a tropical cyclone over Bermuda ... the next name on this year's list is Imelda when ("if?" seems less of a question now) it reaches tropical storm intensity ... there appear to be two scenarios for where it goes. Which scenario comes to pass will depend on how quickly a storm develops, the behavior of Humberto, and the behavior of a storm system moving into the Southeast this afternoon from the Mississippi Valley.

The first scenario, and the one we hope will work out, is that AL94 becomes Imelda over the Bahamas, but Humberto to its east is strong and close enough that it can pull Imelda to the east out to sea on Sunday into Monday. In this scenario, Humberto's outflow aloft cases shear over Imelda, which limits Imelda's strength.

The other scenario, the one we hope doesn't happen, is that AL94 becomes Imelda, but Humberto is too far away or too weak to have a significant influence on Imelda. That would allow Imelda to move northward toward us instead of getting pulled out to sea. It would then become caught in a developing upper-level low over the Southeast (the storm now located over the Mississippi Valley) that would pull it ashore on Monday or Monday night. Additionally, the usual effects of having an upper-level low nearby to the west would apply, as seen with Helene: the upper low would provide the storm with a more favorable environment to strengthen and maintain itself after landfall. Therefore, it could be a hurricane when it reaches us if this scenario unfolds, and the stronger winds could affect areas well inland. It might also be a slow-moving storm that causes widespread heavy rainfall. However, even in this scenario, there is uncertainty about the storm's track; it's possible that the worst impacts could occur in North Carolina instead of South Carolina.

A hybrid of the two scenarios is also possible: Imelda moves close enough to our coast that our coastal areas see damaging wind, a storm surge, and extreme rainfall. The wind and rain could persist for an extended period as the storm may move slowly for a time. Then it eventually feels the influence of Humberto and gets pulled out to sea.

The worst-case scenario at this point is for us to be dealing with a hurricane hitting us on Monday or Monday night, with impacts lingering into Tuesday. Rain impacts may even linger beyond Tuesday if the storm becomes stuck over us after landfall. It's hard to put odds on that right now; I estimate that there is a 20-30 percent chance of that happening. That's high enough that you need to prepare this weekend if you're in one of our coastal counties, unless the forecast changes and we become confident in a low-impact or no-impact forecast. If you're in one of our inland counties, you should closely monitor the situation. This is not going to be a Helene or Hugo, but the worst-case scenario includes locally damaging wind gusts over inland areas.

As always, SCEMD has the hurricane.sc website to provide you with hurricane prep advice and evacuation zone info. Plan on preparing for the worst this weekend, and let's hope and pray that a low-impact or no-impact scenario is what we face early next week.

While I have your attention, the storm system moving our way from the west brings us some potential hazards through Friday. Thunderstorms affecting the state through this evening have a hot and juicy, summery air mass to feed upon, so there is a low-end risk for severe storms.

There is a low-end risk of damaging winds associated with the more intense storms in the level 1 of 5 risk area shown on the Storm Prediction Center's outlook map. The damaging hail and tornado risks are near zero, but 'never say never' applies.

There is also a risk for isolated minor flooding from repeated downpours. Yes, it's barely rained across South Carolina over the last 30+ days, but the rain could come hard and fast through Saturday.

Keep this in mind if you're traveling across the Upstate and vicinity through tonight or anywhere in the state Friday. If you live in a flood-prone area, you might need to move to higher ground and motorists may have to avoid a flooded road (turn around, don't drown).

Cities with the most expensive homes in South Carolina

Purchasing a home is one of the most important investments there is. More than a place to live, homeownership is an asset with the potential to tremendously rise in value. But with home prices reaching record heights, affordability plays a huge role for buyers.The typical home value in the United States was $363,946 in August, 0.0% lower than the year before.High mortgage rates are also making monthly payments more expensive; as of September 18, the 30-year fixed mortgage rate sits at 6.26%.Although home prices have infl...

Purchasing a home is one of the most important investments there is. More than a place to live, homeownership is an asset with the potential to tremendously rise in value. But with home prices reaching record heights, affordability plays a huge role for buyers.

The typical home value in the United States was $363,946 in August, 0.0% lower than the year before.

High mortgage rates are also making monthly payments more expensive; as of September 18, the 30-year fixed mortgage rate sits at 6.26%.

Although home prices have inflated all across the U.S., there are some cities that command a higher price tag than others. Location, size, age, and condition are all contributing factors to home value.

Stacker compiled a list of cities with the most expensive homes in South Carolina using data from Zillow. Cities are ranked by the Zillow Home Values Index for all homes as of August 2025. The charts in this story were created automatically using Matplotlib.

Metros with the most cities in the top 30 in South Carolina

#1. Charleston-North Charleston, SC: 16

#2. Hilton Head Island-Bluffton, SC: 5

#3. Charlotte-Concord-Gastonia, NC-SC: 3

#4. Greenville-Anderson, SC: 2

#5. Georgetown, SC: 1

#5. Columbia, SC: 1

#5. Myrtle Beach-Conway-North Myrtle Beach, SC-NC: 1

#5. Seneca, SC: 1

#30. Clover

- Typical home value: $413,384

- 1-year price change: -0.9%

- 5-year price change: +50.2%

- Metro area: Charlotte-Concord-Gastonia, NC-SC

#29. Briarcliffe Acres

- Typical home value: $413,647

- 1-year price change: -3.6%

- 5-year price change: +53.2%

- Metro area: Myrtle Beach-Conway-North Myrtle Beach, SC-NC

#28. Six Mile

- Typical home value: $422,691

- 1-year price change: +3.2%

- 5-year price change: +58.5%

- Metro area: Greenville-Anderson, SC

#27. Mc Clellanville

- Typical home value: $427,409

- 1-year price change: -3.6%

- 5-year price change: +59.3%

- Metro area: Charleston-North Charleston, SC

#26. Chapin

- Typical home value: $435,328

- 1-year price change: +1.5%

- 5-year price change: +51.7%

- Metro area: Columbia, SC

#25. Hardeeville

- Typical home value: $447,626

- 1-year price change: -2.7%

- 5-year price change: +72.3%

- Metro area: Hilton Head Island-Bluffton, SC

#24. Saint Helena Island

- Typical home value: $465,805

- 1-year price change: +2.1%

- 5-year price change: +73.1%

- Metro area: Hilton Head Island-Bluffton, SC

#23. Pinopolis

- Typical home value: $484,626

- 1-year price change: +6.9%

- 5-year price change: +56.5%

- Metro area: Charleston-North Charleston, SC

#22. Huger

- Typical home value: $488,292

- 1-year price change: -1.0%

- 5-year price change: +43.7%

- Metro area: Charleston-North Charleston, SC

#21. Ravenel

- Typical home value: $491,667

- 1-year price change: -0.7%

- 5-year price change: +60.1%

- Metro area: Charleston-North Charleston, SC

#20. Bluffton

- Typical home value: $498,987

- 1-year price change: -1.6%

- 5-year price change: +56.0%

- Metro area: Hilton Head Island-Bluffton, SC

#19. Hollywood

- Typical home value: $516,671

- 1-year price change: -0.2%

- 5-year price change: +55.3%

- Metro area: Charleston-North Charleston, SC

#18. Salem

- Typical home value: $530,204

- 1-year price change: -1.0%

- 5-year price change: +72.5%

- Metro area: Seneca, SC

#17. Fort Mill

- Typical home value: $533,587

- 1-year price change: +0.6%

- 5-year price change: +55.3%

- Metro area: Charlotte-Concord-Gastonia, NC-SC

#16. Pawleys Island

- Typical home value: $534,500

- 1-year price change: +0.7%

- 5-year price change: +61.8%

- Metro area: Georgetown, SC

#15. Charleston

- Typical home value: $580,993

- 1-year price change: +0.2%

- 5-year price change: +65.5%

- Metro area: Charleston-North Charleston, SC

#14. Tega Cay

- Typical home value: $605,299

- 1-year price change: +1.4%

- 5-year price change: +59.1%

- Metro area: Charlotte-Concord-Gastonia, NC-SC

#13. Wadmalaw Island

- Typical home value: $646,229

- 1-year price change: -1.0%

- 5-year price change: +72.7%

- Metro area: Charleston-North Charleston, SC

#12. Meggett

- Typical home value: $738,905

- 1-year price change: +1.4%

- 5-year price change: +70.0%

- Metro area: Charleston-North Charleston, SC

#11. Edisto Beach

- Typical home value: $744,060

- 1-year price change: +3.1%

- 5-year price change: +88.4%

- Metro area: Charleston-North Charleston, SC

#10. Hilton Head Island

- Typical home value: $759,982

- 1-year price change: +0.8%

- 5-year price change: +74.9%

- Metro area: Hilton Head Island-Bluffton, SC

#9. Awendaw

- Typical home value: $779,840

- 1-year price change: +1.6%

- 5-year price change: +64.8%

- Metro area: Charleston-North Charleston, SC

#8. Mount Pleasant

- Typical home value: $858,188

- 1-year price change: +0.8%

- 5-year price change: +77.3%

- Metro area: Charleston-North Charleston, SC

#7. Seabrook Island

- Typical home value: $986,423

- 1-year price change: -1.2%

- 5-year price change: +106.4%

- Metro area: Charleston-North Charleston, SC

#6. Folly Beach

- Typical home value: $1,052,995

- 1-year price change: -7.2%

- 5-year price change: +78.8%

- Metro area: Charleston-North Charleston, SC

#5. Sunset

- Typical home value: $1,255,336

- 1-year price change: +10.1%

- 5-year price change: +109.9%

- Metro area: Greenville-Anderson, SC

#4. Isle of Palms

- Typical home value: $1,570,747

- 1-year price change: -1.3%

- 5-year price change: +103.1%

- Metro area: Charleston-North Charleston, SC

#3. Kiawah Island

- Typical home value: $1,993,672

- 1-year price change: -0.1%

- 5-year price change: +109.9%

- Metro area: Charleston-North Charleston, SC

#2. Sheldon

- Typical home value: $2,146,987

- 1-year price change: +1.3%

- 5-year price change: +53.8%

- Metro area: Hilton Head Island-Bluffton, SC

#1. Sullivans Island

- Typical home value: $4,115,124

- 1-year price change: +3.1%

- 5-year price change: +123.3%

- Metro area: Charleston-North Charleston, SC

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