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

AC Repair in Mount Pleasant, 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 University School of the Lowcountry near Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, SC

An HVAC Company in Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, 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 Mount Pleasant, SC

County, Habitat for Humanity launch Mount Pleasant affordable housing project

MOUNT PLEASANT, S.C. (WCSC) - Charleston County and Charleston Habitat for Humanity are breaking ground on affordable housing in one of the Lowcountry’s least affordable areas.The project will provide four new homes for Mount Pleasant families.The initiative is part of the county’s Affordable Housing Land Acquisition Grant Program, which helps nonprofit and for-profit developers acquire land for affordable housing. The project received a $350,000 grant, administered by the Charleston Redevelopment Corporation....

MOUNT PLEASANT, S.C. (WCSC) - Charleston County and Charleston Habitat for Humanity are breaking ground on affordable housing in one of the Lowcountry’s least affordable areas.

The project will provide four new homes for Mount Pleasant families.

The initiative is part of the county’s Affordable Housing Land Acquisition Grant Program, which helps nonprofit and for-profit developers acquire land for affordable housing. The project received a $350,000 grant, administered by the Charleston Redevelopment Corporation.

Charleston County originally allocated $2.5 million from American Rescue Plan Act funds for the program. Eric Davis, Charleston County’s Director of Housing and Land Management, said each project includes a minimum 20-year affordability period and, with organizations like Habitat for Humanity, these commitments can last even longer.

“I think success 10 years down the road looks like it’s easier for folks to both purchase a home and live closer to where they work and where they want to go out for entertainment and things like that,” Davis said.

He added that access to affordable housing impacts has an impact far beyond the homeowner themselves.

“It’s not just someone’s personal finances and personal situation that we’re trying to help by providing attainable housing,” he added. “It’s all connected to our economy, our infrastructure, everything,” Davis said.

He also said that more attainable housing could be a solution to many problems the Tri-County area faces.

“It’s really all interconnected when we think about it. If there’s not affordable housing near where you work and where you play, then that pushes folks out to the perimeter of the metro area, which creates stress on traffic and public transportation. So we’re trying to look at this holistically,” Davis said.

Families earning between 35% and 80% of the area median income qualify for any Habitat home. According to U.S. News and World Report, that number is just over $117,000 in Mount Pleasant. While the average two-bedroom rental in Charleston costs $1,600 to $1,800 a month, Habitat homeowners will pay closer to $1,000 monthly for their mortgage and ownership expenses because payments are capped at 30% of gross income.

Lynn Bowley, the chief executive officer of Charleston Habitat for Humanity, said these four homes are a crucial step toward addressing the affordability crisis where many essential workers are being priced out.

“You probably already know a bunch of people who would qualify for a Habitat Home. It could be first responders, first-year teachers. It could be the people who work in the medical field who aren’t the doctors and nurses,” Bowley said.

Bowley also said that being able to build in accessible locations is essential for success.

“It’s really important to be able to build in places like Mount Pleasant where we are not putting people in an area where there is no access to health care or food or schools,” Bowley said.

But, Bowley said that as the need for affordable housing grows, so do the challenges; finding places to build is one of them.

“The hard part is identifying land that’s located in a desirable area and capable of being subdivided. We don’t pass on the cost of the land to our homeowners because they’re capped at 80% of the area median income. So, we need to be as cost-conscious as possible,” she said.

Bowley said Habitat is also exploring multifamily properties, tiny home communities and potential land trusts to maximize density without buying additional land.

“Four houses is always a big, big deal, especially because we’ll be able to build all four of them together. So, it’s almost like having a little tiny neighborhood,” she said.

Construction is expected to be completed within two years.

Mount Pleasant residents say the mayor blocked them on Facebook, raising questions about free speech

MOUNT PLEASANT — A handful of residents claim they’ve been blocked from Mayor Will Haynie’s Facebook pages and the exclusions have raised questions about free speech and how elected officials use social media — an issue that’s not always black and white.Haynie has served as mayor of Mount Pleasant since 2015. Currently running for re-election against political newcomer Curt Thomas, he has two accounts on the social media platform where he often shares information about town-sponsored events, photos, video...

MOUNT PLEASANT — A handful of residents claim they’ve been blocked from Mayor Will Haynie’s Facebook pages and the exclusions have raised questions about free speech and how elected officials use social media — an issue that’s not always black and white.

Haynie has served as mayor of Mount Pleasant since 2015. Currently running for re-election against political newcomer Curt Thomas, he has two accounts on the social media platform where he often shares information about town-sponsored events, photos, videos, news articles and general life updates. One is denoted as his personal page.

“Husband, Father, ‘Dog Person’ Who Happens To Be Mayor of Mount Pleasant, SC. Personal page,” the introduction at the top of the account reads.

A second profile, “Will Haynie for Mayor,” is designated for his re-election campaign. According to the intro, the account is funded by donors. Here, Haynie shares information on campaign events and speaking engagements. Occasionally, he will share posts from his personal page here, too.

“(T)he admins control the right to restrict content and users,” the introduction states.

Some residents claim they’ve been blocked from commenting and viewing at least one of these accounts, and in some cases, both.

Matt Varble recently moved to Mount Pleasant. He said he’s been banned from both of Haynie’s pages after he left a comment disagreeing with the mayor’s stance on a recent property tax increase. Another resident, Ellen Moore, said both she and her husband have been unable to view these pages for several years.

Two sitting council members, John Iacofano and Daniel Brownstein, said they’ve also been restricted from viewing at least one of these accounts.

The reported social media restrictions brought up the issue of free speech and access to public officials.

“Blocking constituents — and possibly even fellow council members — over a factual disagreement feels inconsistent with the principles of transparency and open dialogue expected from an elected official,” Varble said.

But Haynie said neither of the pages in question are government accounts, and they aren’t intended to give followers the impression they are affiliated officially with the town of Mount Pleasant. His re-election account is a proprietary campaign page.

“If I buy an ad in The Post and Courier, they are not entitled to put how they feel about me or my stance on things in the ad I buy,” Haynie said. “My social media page is managed by a paid social media management company. I am paying for all of that. If somebody wants to come on there and start taking on the people that are making legitimate comments or asking legitimate questions or harassing them … I'm not paying to give them a following that they haven't bought.”

Recent U.S. Supreme Court ruling addresses issue

A recent ruling from the U.S. Supreme Court in Lindke v. Freed says public officials can be held liable for blocking constituents on social media — but not always.

In 2022, a Michigan man named Kevin Lindke sued James Freed, the city manager of Port Huron, for blocking him from the manager’s Facebook account. Lindke left comments critical of the city’s handling of the Covid-19 pandemic. Freed eventually blocked him.

Lindke argued that because Freed routinely shared communications from other city officials and other city-related news on that Facebook page, restricting his access was a First Amendment violation.

Freed, who first established his Facebook account while in college, argued he was not operating the page in his capacity as a public official, but rather as a private citizen. In 2024, SCOTUS affirmed Freed’s position, and developed a two-pronged test for future cases.

“The Court held that public officials could be held liable under the First Amendment for blocking constituents and other interested parties from viewing and commenting on their social media accounts, but only if their social media activity constitutes official government communications,” said Scott Bauries, a law professor at the University of South Carolina.

The test includes two parts: if an elected official has the authority to speak on a government’s behalf and if they were truly acting in an official capacity when posting on social media, including blocking users.

“It may also depend on whether he issues disclaimers when his postings are not intended as government communications. It may depend on whether he completely blocks people from viewing and commenting, or whether he selectively deletes some comments from purely personal postings,” Bauries said.

Just because an account is held by someone who happens to be a public official, it does not mean every post is an official communication, said Seth Gordon, a visiting professor teaching Constitutional Law at the Charleston School of Law.

“Just because you're a public employee doesn't mean you give up your First Amendment rights as a private citizen,” Gordon.

Archbishop Wood faces misconduct allegations, St. Andrew's Church confirms complaint

MOUNT PLEASANT, S.C. (WCIV) — Stephen Wood, the archbishop of the Anglican Church in North America, faces allegations of sexual harassment, bullying and plagiarism, according to a report published by The Washington Post on Thursday. Wood's local ministry, St. Andrew’s Church in Mount Pleasant, confirmed a complaint had been filed against the reverend in a statement provided to News 4."The leadership of St. Andrew's Church is aware that a complaint has been submitted to the Anglican Church of North America (ACNA...

MOUNT PLEASANT, S.C. (WCIV) — Stephen Wood, the archbishop of the Anglican Church in North America, faces allegations of sexual harassment, bullying and plagiarism, according to a report published by The Washington Post on Thursday.

Wood's local ministry, St. Andrew’s Church in Mount Pleasant, confirmed a complaint had been filed against the reverend in a statement provided to News 4.

"The leadership of St. Andrew's Church is aware that a complaint has been submitted to the Anglican Church of North America (ACNA) relating to allegations made against Archbishop Steve Wood," the statement from the church reads. "Because this is an ongoing process, the Wardens, Vestry, and Staff of St. Andrew’s cannot comment on these allegations."

Wood, 62, is accused by a former children's ministry director of putting his hand against the back of her head and trying to kiss her in his office in April 2024, two months before he was elected as the archbishop, according to the report from The Washington Post. The woman who levied the accusation also claimed that he gave her thousands of dollars in "unexpected payments from church offers" before the attempted kiss.

According to The Post's reporting, Wood also faces complaints from priests that he plagiarized sermons and bullied and disparaged church staffers before he became archbishop.

“I do not believe these complaints have merit," Wood said in a statement. "I trust the process outlined in our canons to bring clarity and truth in these matters.”

Church staff explained that in accordance with canon law, as soon as the complaint is validated as a presentment, Bishop Ray Sutton, Dean of the Province, will convene a Board of Inquiry to thoroughly investigate the accusations included in the presentment and determine if there are reasonable grounds to pursue an ecclesiastical trial.

The Anglican Church in North America was formed approximately 16 years ago by former members of the Episcopal Church and the Anglican Church of Canada, both part of the global Anglican Communion.

Around 700 congregations split from the historic communion, accusing it of promoting progressive theology and social causes, particularly concerning sexuality and the ordination of women.

The denomination does not allow women to serve as bishops and considers same-sex relationships sinful.

The Anglican Church in North America includes more than 1,000 congregations, mostly in the United States, with an estimated 128,000 members.

In 2020, Wood contracted COVID-19 and was placed on a ventilator, which he credits with saving his life.

Mount Pleasant candidates for mayor and council share views during forum

MOUNT PLEASANT, S.C. (WCSC) - The Mount Pleasant Chamber of Commerce hosted a mayoral and town council candidate forum Thursday night.With dozens of residents in attendance, the forum brought all the candidates for mayor and town council together to share their vision for the town’s future, as well as their priorities and solutions for challenges the town faces. There is one mayoral seat and four town council seats open during this election.The candidates shared priorities, including solving traffic issues, raising pay fo...

MOUNT PLEASANT, S.C. (WCSC) - The Mount Pleasant Chamber of Commerce hosted a mayoral and town council candidate forum Thursday night.

With dozens of residents in attendance, the forum brought all the candidates for mayor and town council together to share their vision for the town’s future, as well as their priorities and solutions for challenges the town faces. There is one mayoral seat and four town council seats open during this election.

The candidates shared priorities, including solving traffic issues, raising pay for first responders, increasing civic engagement, developing better infrastructure and looking into flood resiliency programs.

John Meissner, a Mount Pleasant resident for the past 25 years, says he gained a better understanding of where all the candidates stand.

“I thought the forum was great,” Meissner says. “It gave me a better idea of who was keeping things organized in Mount Pleasant. All of them seem to be very well qualified.”

Candidates for Mayor include Will Haynie, who is a two-term incumbent, and Curt Thomas. Haynie was first elected in 2017.

Haynie, who is running for his third term, introduced himself as a lover of the town and a mayor who gets things done.

“If you love the town and you love its people, everything else falls in place and I fell in love with this town, I’m in love with this town now and I try to do everything for this town out of that love for you and the town we all love,” Haynie says.

Thomas defined himself as new and said the town needs to change.

“We’ve been told to be patient while our town’s traffic gets worse,” Thomas says. “Our infrastructure is an issue. Patience is costing us and it’s the very reason why we are here. Let’s be clear, the real risk isn’t change, it’s having the same four years of this leadership.”

Candidates for town council include Alexandra Crosby, Jenny DeSart, Brianna Harmon, Perry Rourk, Craig S. Russack and Kathryn Whitaker. Incumbents running again include John Iacofano, Gary K. Santos and Mike Tinkey.

All of the candidates were invited to participate, but three of the town council candidates were unable to attend.

Residents were able to submit questions for the moderators to ask the candidates. They brought up concerns regarding economic development, infrastructure, projects focused on resiliency and affordable housing.

“The nurses, the firemen, the policemen, a lot of them are not able to afford to live here,” Meissner says. “It’s like the problem is in the rest of the country, having affordable housing for people in the middle class is really important to me and I hope they find a way to make that happen.”

Many are also concerned about the traffic on Highway 41 and whether the town is going to widen it, build on top of marsh or go forward with Charleston’s Road to Compromise . Many of the candidates said they were against the Road to Compromise project and instead want to find another practical solution. Charleston County the plan amidst pushback from the town of Mount Pleasant this summer.

Candidates also had the opportunity to share their views on Mount Pleasant Way, a of connected multi-use pathways throughout the town for non-motorists. All the candidates said they supported the project, but some also brought up the importance of private property rights for communities and protecting the wetlands during construction.

The early voting period for this election began on Oct. 20 and ends on Oct. 31. The general election is on Nov. 4.

The Best Real Estate Agent in MOUNT PLEASANT, SC: Ashley Graham

MOUNT PLEASANT, SC / ACCESS Newswire / October 21, 2025 / Ashley Graham is widely regarded as the , combining deep neighborhood expertise, proactive lender coordination, hands-on staging guidance and a 5.0 client-review profile to shorten marketing time and prevent closing surprises.Buying or selling in Mount Pleasant, South Carolina? Call Ashley Graham at Carolina One Real Estate on (843) 708-5295.Why Is Ashley Graham the Best Residential Realtor in Mount Pleasant?...

MOUNT PLEASANT, SC / ACCESS Newswire / October 21, 2025 / Ashley Graham is widely regarded as the , combining deep neighborhood expertise, proactive lender coordination, hands-on staging guidance and a 5.0 client-review profile to shorten marketing time and prevent closing surprises.

Buying or selling in Mount Pleasant, South Carolina? Call Ashley Graham at Carolina One Real Estate on (843) 708-5295.

Why Is Ashley Graham the Best Residential Realtor in Mount Pleasant?

Clients and local lenders praise Ashley's emphasis on readiness and clear timelines, which reduces surprises during underwriting and appraisal. "Preparation wins deals - I coach clients through paperwork so offers are lender-ready and close on schedule," says Graham. That practical focus helps sellers present cleaner listings and gives buyers the confidence to write stronger offers when market conditions shift.

What Is Ashley Graham's Experience in Mount Pleasant?

Ashley brings nearly a decade of full-time residential real estate experience to Mount Pleasant, delivering consistent results across buyers and sellers and a reputation for hands-on transaction management. She combines local market know-how with a steady communication cadence so clients always know next steps.

What Makes Ashley Graham the Top Agent in Mount Pleasant, SC?

Ashley earns top real estate agent status in Mount Pleasant through rigorous project management: she sets timelines, lender checkpoints, and staging priorities at the outset and then tracks every milestone through to closing. By opening lender conversations early and ordering pre-listing inspections when useful, she limits rework and avoids underwriting surprises. "I prioritize clear timelines and realistic pricing so sellers can test the market confidently," Graham says - an approach that keeps negotiations focused and smooths appraisal and financing hurdles.

What Do the Mount Pleasant Market Numbers Say Right Now?

The September 2025 shows:

These indicators point to a somewhat competitive market with active price sensitivity-buyers with clean financing and flexible inspection windows often gain leverage, while sellers should prioritize accurate pricing and strong presentation. For sellers and buyers who want focused, local representation, see why so many .

Who is Ashley Graham at Carolina One Real Estate?

Ashley Graham is a Mount Pleasant-based agent with Carolina One Real Estate serving Mount Pleasant and nearby Charleston neighborhoods. Her practice centers on underwriting-ready listings, practical staging, and ongoing lender coordination; she brings ABR and REALTOR® credentials and a track record of client-rated responsiveness.

Media Contact:

Phone: (843) 708-5295Website: Email: Address: 628 Long Point Road, Mt Pleasant, SC 29464

SOURCE: Ashley Graham, Carolina One Real Estate

Disclaimer:

This website publishes news articles that contain copyrighted material whose use has not been specifically authorized by the copyright owner. The non-commercial use of these news articles for the purposes of local news reporting constitutes "Fair Use" of the copyrighted materials as provided for in Section 107 of the US Copyright Law.

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