Serving Mount Pleasant, SC & Surrounding Areas (843) 268-6989
(843) 268-6989

HVAC Charleston, SC

#1 Rated HVAC Repair in Charleston, SC

Professional AC repair, heating installation, and full HVAC service for local homes, businesses, and the surrounding neighborhoods.

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★★★★★ 4.9 / 5 stars (150+ reviews)
HVAC technicians serving Charleston

Professional Service, Fast Results

Serving this community and the surrounding area, Mount Pleasant HVAC delivers reliable HVAC repair and installation with fast response times and lasting results that local homeowners depend on.

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Complete Comfort Care in Charleston

For Charleston residents, Mount Pleasant HVAC is the way around every bad HVAC experience you've heard about: the no-show appointment windows, the mystery invoices, the replacement pitch for a system that needed a $40 part. That's not how we work. A real person answers, a technician shows up on time, the diagnosis is explained clearly, and the price is agreed before any work begins. From emergency repairs to planned upgrades, all handled by seasoned technicians who know the area.

Heating and Air Conditioning Service Across Charleston

We service every type of heating and cooling equipment you'll find in local homes and businesses, from central air conditioners and gas furnaces to heat pumps and ductless mini-splits. It doesn't matter whether the building is a starter home, a townhome, or a storefront. Our techs know the local climate, the age and construction of local homes, and the code requirements that apply to new installations, and that knowledge shows up in the quality of every repair.

A normal week for our residential technicians might include capacitor and contactor replacements, flame sensor cleanings, refrigerant leak repairs, blower motor swaps, and at least one full system replacement or ductless addition. When we do replace equipment, we size it with a room-by-room load calculation rather than matching the old unit. A correctly sized system holds even temperatures, keeps utility bills reasonable, and avoids the short-cycling that kills compressors early. Beyond repairs and replacements, we recommend seasonal tune-ups that clean coils, confirm the refrigerant charge, test the safety switches, and measure static pressure, the best single step for a longer-lasting system.

Local businesses receive the same attention. A hot dining room or a drafty office drives customers and staff away, so our commercial crews focus on getting to the cause quickly and keep common parts on board for rooftop units, split systems, and ventilation equipment. Property managers, restaurant owners, and retailers can ask us to work around their operating hours whenever possible.

Quick Heating and Cooling Help in Charleston

Heating and cooling failures rarely wait for a convenient day, which is why we offer fast, flexible scheduling for most situations. When you call, you'll reach a real person who gets a technician dispatched to your door without delay. Our typical arrival window in the area is usually within a day for urgent calls, and a dead AC in a heat wave or a furnace out on a freezing night is exactly the kind of call we move to the front of the line.

Common emergencies we handle include air conditioners blowing warm air, outdoor units that hum but won't start, furnaces that ignite and then shut down, breakers that trip whenever the system starts, iced-over evaporator coils, clogged condensate drains backing up into the furnace cabinet, and thermostats that have simply given up. Our trucks carry the capacitors, contactors, igniters, flame sensors, universal control boards, and fittings needed to complete most repairs in a single visit. We provide upfront pricing every time, so you know exactly what the work will cost before we begin.

A little caution while you wait for us can head off a much larger repair. A frozen air conditioner should be turned off at the thermostat with the fan set to "on", which lets the coil thaw safely. Running it frozen risks an overflowing drain pan and a damaged compressor. A furnace that keeps short-cycling, or any burning smell, means it's time to kill power at the furnace switch and call us immediately.

Keeping Your Charleston HVAC System Running Longer

Most mid-season breakdowns start with maintenance that never happened, and the habits that prevent them are easy. Swap your filter every one to three months, keep plants and shrubs at least two feet from the outdoor condenser, and hose off the condenser coil every spring. Then book a professional tune-up twice a year, one for cooling and one for heating, so our technicians can catch small problems while they're still cheap to fix.

Age matters too. Most central air conditioners run 12 to 15 years, furnaces 15 to 20, and heat pumps 10 to 15 with regular service. If your system is past that window and showing symptoms, such as rising energy bills, rooms that never feel comfortable, or a service call every season, a planned replacement is nearly always less expensive and far less stressful than an emergency one in the middle of a cold snap.

Minor issues rarely stay small for long. Take a weak capacitor: replacing it is a short, inexpensive repair, but left alone for a season, it can burn out the compressor, and suddenly a minor fix becomes a full system replacement. That's why we encourage homeowners to keep our number in their phone and call at the first hint of trouble. Catching it early saves time and money and spares you a miserable night.

Common HVAC Problems in Charleston

The service calls we run around here follow familiar patterns. In summer it's air conditioners humming but not cooling, weak capacitors that finally quit on the first hot week, and iced-over evaporator coils. In winter it's furnaces that light and shut back down, dirty flame sensors, and igniters that fail on the first cold night. Year-round we see thermostats misreading rooms, rising energy bills from dirty coils, and ductwork that leaks conditioned air into attics and crawlspaces. Every one of these starts small, and every one is cheaper to fix early. If your system is showing symptoms, call (843) 268-6989 before the season turns it into an emergency.

Your Go-To Heating & Air Team

As a locally-operated HVAC company, we understand the unique challenges homeowners here face. From iced-over coils to furnaces flashing error codes, our technicians are equipped to handle it all.

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Don't wait for a struggling system to quit completely. We respond quickly across the area and nearby neighborhoods.

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What We Offer

From single-family homes to commercial properties, our team covers every comfort need in the area, including:

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Why Charleston Homeowners Trust Us

Choosing an HVAC company comes down to trust, and trust has to be earned. Mount Pleasant HVAC earns it by recommending the $150 repair when that's what the system needs, by sizing replacements with real load calculations instead of guesswork, and by standing behind every repair after the truck pulls away. Same-day service is available for most calls, and every visit ends with the system tested and your questions answered.

HVAC FAQ for Local Residents

We do offer twice-a-year maintenance across the area. The spring visit covers cooling: cleaning the coils, verifying the refrigerant charge, testing the capacitor, and measuring airflow. The fall visit covers heating: burner cleaning, a combustion check, and safety control testing. Staying on that schedule adds years to your equipment, heads off breakdowns during the worst weather of the year, and usually pays for itself in lower energy bills.
First, rule out the simple causes. Confirm the thermostat is in cooling mode and the batteries aren't dead, swap the filter if it's dirty, and look at the breakers for the indoor and outdoor units. Frost or ice on the refrigerant lines or an outdoor unit that hums but never starts means it's time to shut the system off, since continuing to run it risks damaging the compressor. Call us at (843) 268-6989 and we'll send a technician your way right away.
Absolutely. Mini-splits are a great fit for additions, garages, sunrooms, and older homes that never had ductwork. We size each zone to the actual room, position the indoor and outdoor units carefully, and take care of the line set, condensate drainage, and electrical connections correctly. If a ducted system is the better fit, we'll say so.
Every quote comes before any work starts, so you know the price up front. As a general range, most repairs cost $150 to $650 depending on the part and system, and complete new systems run about $5,000 to $12,000 installed depending on size and efficiency. Your exact price comes from a diagnostic visit at your home, and the quote you sign off on is the price you pay, no surprises added later.
Age and the failed part decide it together. Under about 10 years, most component failures are well worth repairing. Past 15 years, or any time a compressor or heat exchanger fails, replacement is usually the smarter money, especially with the efficiency gains of new equipment. We give you both numbers honestly and let you make the call. We'd rather earn your trust than sell you a system early.
We service nearly every brand installed in local homes, including Carrier, Trane, Lennox, Rheem, Goodman, and York, as well as ductless equipment from Mitsubishi, Fujitsu, and LG. The universal parts on our trucks fit most units, and if a job needs a factory part, we track it down fast.
Yes. We repair every major brand of air conditioners, furnaces, heat pumps, and ductless mini-splits. When a system is past repair, we handle the complete replacement: removing and disposing of the old equipment, putting in a correctly sized new system, and testing it in every mode. You get a clear quote for each option before deciding.
Fast. We serve the whole area with same-day appointments for most calls, and no-heat and no-AC calls go to the front of the line. Our trucks carry the most frequently needed parts, including capacitors, contactors, igniters, and motors, so most repairs are diagnosed and finished in a single visit. Call (843) 268-6989 and we'll give you an honest arrival window.

Nearby Areas We Serve

Beyond this community, we cover the surrounding towns with the same fast service.

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