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AC Repair in Charleston, SC: outdoor air conditioner condensers beside a two-story home

AC Repair in Charleston, SC

AC Repair That Restores Cold Air Fast

From swollen capacitors to refrigerant leaks and frozen evaporator coils, we find the real fault and fix it right the first time.

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Our technicians who handle AC Repair in Charleston, SC
Why Choose Us

Professional Service, Fast Results

Reliable comfort starts with the right team. Charleston HVAC serves Charleston with experienced, friendly technicians who take pride in solving the problem and explaining what they did.

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A humming outdoor unit with a fan that will not turn is the call we get most in July in Charleston, SC, and the cause is usually a failed run capacitor. That inexpensive component starts the compressor and fan, fades for years without complaint, and then quits under peak load. It is far from the only suspect, though. Contactors pit and stop passing clean power, condenser fan bearings dry out, small refrigerant leaks drain away cooling capacity, and evaporator coils ice over when a clogged filter strangles airflow.

Quick ResponseA real person picks up
Price Before WorkNo surprise charges
Every Brand ServicedExperienced, local technicians

Heating trouble instead? See Furnace Repair.

When to Call for AC Repair in Charleston

The sooner you notice these red flags, the easier and cheaper the fix. Keep an eye out for the following clues:

  • Water dripping from the indoor unit or showing up on the ceiling below
  • The system short-cycling every few minutes without cooling the house
  • Vents blowing air that is barely cooler than the room
  • Breaker trips or a burning odor at startup
  • The outdoor unit humming or clicking but the fan not spinning
  • Frost or ice forming on the copper lines or the indoor coil
  • A hiss or gurgle from the lines, a common sign of leaking refrigerant
  • Higher summer bills even though the house still feels warm and humid

Don't Wait for a Total Failure

Most HVAC failures start small, a weak capacitor, a squealing blower, a system that runs a little longer each week. If you notice any of these signs, call (843) 268-6960 for a prompt inspection.

Technician holding a new run capacitor beside an outdoor AC unit in Charleston, SC
A weak run capacitor is the most common reason an outdoor unit hums but will not start.
Our Approach

What Goes Into Our AC Repair

At Charleston HVAC, each cooling call starts with measurement. Capacitors are metered against the rating on the label. Amp draws on the compressor and fan motor are compared to the data plate. Refrigerant charge is judged by superheat and subcooling, not by pressure readings alone, and any icing prompts a look at the evaporator coil, blower wheel, and filter. This matters because a single warm-air symptom can hide four different faults at four very different prices, and a refrigerant top-off that ignores the leak is just a short-term rental on cold air.

Honest advice is part of every visit. If an aging system's compressor has failed, we explain the repair-versus-replacement math plainly and let you decide. Most of the time, though, the fix is simpler, and because our trucks stock capacitors, contactors, fan motors, hard-start kits, and condensate pumps, cooling is usually restored before we leave. We work on central air, heat pumps, and ductless mini splits from all major brands. Need AC repair in Charleston? Call (843) 268-6960 and an experienced technician will be on the way.

What It Costs

How Much Does AC Repair Cost in Charleston?

The typical AC repair in Charleston costs $150 to $650. The part that failed drives the price: a capacitor is a quick, inexpensive fix, while a coil or compressor is a major repair. Every repair starts with a diagnosis and a clear, upfront price.

What Moves the Cost Up or Down

  • The age of the system and whether parts are still readily available
  • Refrigerant type, because R-22 recharges are much more expensive
  • Whether the repair is urgent, after hours, or can be scheduled
  • Access to the equipment, like rooftop units or tight attic air handlers

When a quote climbs toward the cost of replacement on an older unit, we'll lay out repair and replacement prices together, with no pressure either way. Questions about cost? Call (843) 268-6960.

RepairTypical costWhat it usually means
Capacitor replacementMost common repair, usually same visit$150–$400The most common AC failure; outdoor unit hums but won't start
Contactor replacementBurned or pitted switch that powers the outdoor unit$150–$350Worn relay that stops the condenser from starting
Condenser fan motorOutdoor fan stops, compressor trips on high heat$300–$700Fan won't spin, unit overheats and shuts down
Refrigerant leak repair + rechargeVaries with where the leak is and how much charge is lost$300–$1,500Depends on leak location and refrigerant type
Evaporator coil replacementCorroded or leaking indoor coil$1,000–$2,500Major repair; worth weighing against replacement on older systems
Compressor replacementLargest single repair; often weighed against a new system$1,500–$3,000On systems past 10–12 years, replacement usually makes more sense

Typical ranges for common repairs. Your exact price is quoted after diagnosis.

What to Expect

Our AC Repair Process

Every visit follows a step-by-step method refined over years of hands-on experience.

1

Testing First

Capacitors, the contactor, motors, and amp draws are all measured, the charge is evaluated through superheat and subcooling, and the coil, filter, and drain are inspected so the real failure is found.

2

Findings & Firm Quote

Nothing happens without your approval. We explain what broke and why, quote a firm price, and, if the compressor or coil has failed, walk you through the repair-or-replace decision honestly.

3

Same-Visit Repair

Our trucks carry capacitors, contactors, fan motors, and the other parts that fail most in summer, so the large majority of AC repairs are completed on the spot.

4

Cooling Performance Check

Before we leave, we measure the temperature split, recheck amp draws and refrigerant charge, flush the condensate line, and run the system through a complete cooling cycle.

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FAQ

AC Repair FAQ

Don't see your question? Call and ask a technician.

Talk to us: (843) 268-6960
Usually the same day. Capacitors, contactors, and fan motors cause the bulk of summer breakdowns, and our trucks carry them, so most repairs are done in a single visit. Call (843) 268-6960 and we will get an experienced technician headed to your Charleston home.
For smaller failures like a capacitor, contactor, motor, or clogged drain, repair nearly always pays off, even on an older unit. Once a system passes twelve years and loses its compressor or evaporator coil, replacement tends to be the better investment, especially with R-22 and R-410A becoming more expensive to maintain. We lay out the honest math. Call (843) 268-6960 for a straight answer.
Common culprits include a failed capacitor on the compressor or outdoor fan, an iced-over evaporator coil, refrigerant lost to a leak, and duct leaks that let return air skip the coil. Because the fixes and costs differ, we diagnose first. Call (843) 268-6960 for fast AC repair in Charleston.
Ice means the evaporator coil is running below freezing, either because airflow collapsed, usually a clogged filter, dirty coil, or failing blower, or because the refrigerant charge is low. Running it frozen risks the compressor. Shut the system off, let it thaw, and call (843) 268-6960 so we can fix the cause, not the symptom.
Done Right

Why Professional AC Repair Matters

Start with the refrigerant. It lives in a sealed, pressurized loop, venting it is prohibited under federal rules, and correct service requires gauges, a vacuum pump, and a recovery machine rather than a store-bought recharge kit. Add capacitors that hold a dangerous charge with the power off and a condensing unit fed by 240 volts, and the risks add up quickly. Then there are the diagnostic traps: an iced coil often points to poor airflow rather than low charge, and topping off a system with an unrepaired leak lets moisture and acid slowly damage the compressor while your money leaks out with the refrigerant.

What you get from a pro is a repair that holds. Our experienced technicians find leaks with dye and electronic detectors, base every charge decision on superheat and subcooling, test electrical parts with a meter before condemning them, and measure static pressure and inspect the blower and filter whenever airflow is in question. Parts-cannon fixes tend to bring you back in a few weeks. Ours are built to last through the heat. And if the numbers say replacement is the better call, we show you those numbers honestly, without pressure.

Should You DIY or Call a Pro?

A homeowner can swap a filter with ease, but capacitors, refrigerant charge, control boards, and error codes call for a pro's equipment and know-how.

FactorDIY AttemptProfessional Service
Refrigerant Leaks Recharge cans that ignore the leak Leak located, repaired, charge weighed in
Shock Risk Live 240V wiring and a charged capacitor Power verified off, capacitors discharged
Frozen Coils Defrost it and hope for the best Cause of the icing traced and corrected
Troubleshooting Guessing between look-alike faults Measured with meters, gauges, and clamps
Parts Parts that are almost the right rating Correct ratings for your exact unit
Outcome Works until the next hot spell Repair verified under real load
Outdoor AC condenser with trimmed shrubs set well back at a home in Charleston
Homeowner Tips

Maintenance Tips for AC Repair

Smart maintenance is almost always cheaper and easier than an early replacement. Follow these tips from our experienced technicians:

  • Leave vents open in every room, since closing them strains the blower
  • Flush the condensate drain line with the season's first use to head off clogs
  • Have the AC serviced every spring, ahead of the first real heat
  • Hose off the condenser coil every spring and trim plants to at least two feet away
  • Swap filters monthly while the AC is running hard to keep the evaporator coil from icing
  • Never enclose the condenser; it needs open space on every side to shed heat
  • A new buzz or click at startup often means a weak capacitor, so call before it fails

Get AC Repair Help Today

Get your comfort back before a small fault becomes a full breakdown.

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AC Repair Near Charleston

We bring AC repair to homes and businesses in town and across the nearby communities. Pick your area to see local details.

Charleston Columbia Greenville Myrtle Beach Spartanburg North Charleston Florence

Other Services

HVAC Replacement Furnace Installation Ductless Mini Split Installation Heat Pump Installation HVAC Installation Air Duct Cleaning Furnace Repair HVAC Repair HVAC Maintenance AC Installation Heating Repair

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Why Choose Us

What You Can Count On

Every AC repair job we complete reflects our commitment to quality and customer satisfaction.

Repairs That Last

We dig deeper than the symptom, from error codes to static pressure, so your comfort stays reliable long after we leave.

Honest, Upfront Pricing

You get a clear, written quote before any work begins, no hidden fees and no high-pressure upsells, just a fair price for the job.

Rooted in Charleston

We're your neighbors, not a faraway call center. You'll deal with the same familiar faces every visit.

Safe, By-the-Book Installs

HVAC systems combine gas, refrigerant, and high-voltage electricity. Our technicians follow code on every connection, from gas lines to disconnects, and test everything before we leave.

★★★★★ Rated 4.8/5 by Charleston homeowners  ·  Upfront Pricing  ·  Fast Response  ·  All Brands Serviced

Get AC Repair Help Today

Don't wait for a small fault to take out the whole system. Call Charleston HVAC for fast, reliable service.

Call (843) 268-6960 Now
AC Down? Call NowUpfront Pricing, No Obligation