(843) 268-6987
HVAC in Charleston, SC: single-story ranch home with an outdoor AC condenser

HVAC in Charleston, SC

Trusted Heating & Cooling Service in Charleston, SC

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

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Our technicians providing HVAC in Charleston, SC

Trusted Neighborhood HVAC Experts

Local residents trust Florence HVAC for no-AC and no-heat emergencies because we combine fast arrival times with thorough, professional workmanship.

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Charleston HVAC, Done Right

Comfort in Charleston shouldn't be seasonal. Florence HVAC keeps local homes and businesses comfortable year-round with fast, professional heating and cooling service, from quick furnace repairs to properly sized new systems. We've worked in nearly every neighborhood in the area, which means we've seen how these systems fail locally and we arrive prepared, with the common failure parts already on board. One call to (843) 268-6987 and the problem starts getting solved.

HVAC technician walking up to a Charleston home with his tools
Most repairs are handled in a single visit, with the usual parts carried on the truck.

Heating and Air Conditioning Service Across Charleston

Heating and cooling around here means a wide mix of equipment: aging furnaces in established neighborhoods, high-efficiency heat pumps in recent construction, ductless mini-splits in additions and converted garages, and rooftop units on commercial buildings. Our team handles all of it. We have years of field experience, and we've learned how the local climate, the housing stock, and local code affect the way equipment performs and fails.

Most homeowners we work with need one of three things: a repair, a replacement, or regular maintenance. Repairs are usually straightforward: a burned contactor, a dirty flame sensor, a slow refrigerant leak, or a worn-out blower motor. When we replace a system, it gets a proper load calculation, not a guess based on the old unit's tonnage, which keeps temperatures even and stops the new equipment from short-cycling its way to an early failure. Maintenance visits include coil cleaning, a refrigerant charge check, safety control testing, and a static pressure reading, and nothing does more to extend equipment life.

For commercial property owners and managers nearby, we service the rooftop units, split systems, and makeup air and ventilation equipment that restaurants, retail spaces, offices, and multi-unit buildings depend on. Our commercial team understands that a hot dining room or a freezing office means lost business, so we prioritize fast diagnosis, stock common parts on the truck, and schedule work around your operating hours whenever we can.

Fast HVAC Response in Charleston

When your system quits, how fast help arrives matters more than anything else. That's why we keep scheduling flexible across the area and answer every call with a live person. Emergency calls usually get a technician within a day, and we prioritize no-heat and no-cool calls as top priority.

The emergency calls we run usually follow a pattern. On the cooling side, it's an AC blowing warm air, an outdoor unit that hums without starting, or an evaporator coil frozen solid. On the heating side, it's a furnace that ignites and drops out. And any time of year, it's breakers that trip every cycle, clogged condensate drains overflowing into the furnace cabinet, and thermostats that have quit. Because our trucks are stocked with capacitors, contactors, igniters, flame sensors, universal control boards, and fittings, most of these are wrapped up in one visit, at a price you approve before we start.

A few minutes of caution while you wait for us can head off a much larger repair. A frozen air conditioner should be shut off at the thermostat with the fan set to "on", which lets the coil thaw faster. Running it frozen can flood the drain pan and damage the compressor. A short-cycling furnace, or any burning smell, means it's time to kill power at the furnace switch and call us right away.

Keeping Your Charleston HVAC System Running Longer

The best way to avoid a mid-season breakdown is routine maintenance. We recommend that homeowners replace filters every one to three months, keep vegetation trimmed two feet back from the outdoor condenser, rinse the condenser coil each spring, and have a professional tune-up twice a year, cooling in spring and heating in fall, so small problems get caught while they're still inexpensive.

Take a look at the age of your system. Its age tells you a lot. With regular service, most air conditioners make it to 12 to 15 years, furnaces 15 to 20, and heat pumps 10 to 15. If your system is past that point and is also showing higher bills, uneven temperatures, or repeated repairs, it's a strong candidate for a planned replacement, and that's almost always cheaper and easier on everyone than a rushed emergency install when the first heat wave hits.

The earlier you report a comfort problem, the cheaper it usually is. A weak capacitor costs little to replace, yet that same capacitor, ignored through a full season, can ruin the compressor and force a full system replacement. Save our number in your contacts now so you can reach us fast the moment something sounds or feels wrong in your home. Early intervention saves time, money, and miserable nights.

Typical Heating & Cooling Issues in Charleston

Ask any homeowner around here what HVAC trouble looks like and the answers sound familiar: the AC that quit during the hottest week of the year, the furnace that woke everyone up with a loud bang at 2am, the system that runs all day but never satisfies the thermostat. Behind those stories are predictable culprits: failing blower motors, low refrigerant charge, undersized returns, and years of skipped maintenance. Our technicians run into these problems every week and carry the parts to fix most of them on the first trip.

Your Go-To Heating & Air Team

We know this area inside and out, including the climate patterns and housing stock that affect local comfort systems. No matter the brand or system type, our team brings the right tools and proven methods to get your home comfortable again.

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Heating & Cooling Services We Provide

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

Florence HVAC treats this community like home turf, because it is. We show up when we say we will, we diagnose before we quote, and we put real numbers on both repair and replacement so you can decide with facts instead of pressure. Our technicians are seasoned on everything from 20-year-old furnaces to inverter heat pumps, our trucks carry the parts that actually fail, and our work is checked in every mode before we go. That's why neighbors here pass our number around.

Homeowner and technician reviewing a thermostat in Charleston

HVAC FAQ for Local Residents

We always quote before we start, so you know the price up front. As a general range, typical repairs cost $150 to $650 depending on the part and system, and complete new systems run roughly $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 what you pay, no surprises added later.
Start with a few quick checks: confirm the thermostat is set to cool and has fresh batteries, look at the filter to see if it's clogged, and look for a tripped breaker on both the indoor and outdoor units. If none of that helps and the outdoor unit is humming without starting, or you see ice on the copper lines, shut the system off before the compressor is damaged. Then call (843) 268-6987 and we'll send a technician to your home as fast as we can.
We service just about everything installed in local homes, from Carrier, Trane, and Lennox to Rheem, Goodman, and York, along with ductless systems from Mitsubishi, Fujitsu, and LG. Universal parts on the truck cover most units, and if a job needs a factory part, we track it down fast.
There isn't one magic number, but some guidelines help. Most component failures on systems under about 10 years old are worth the repair. Past the 15-year mark, or after a compressor or heat exchanger failure at any age, replacing the system usually makes better financial sense, and newer equipment brings real efficiency gains. We'll show you both numbers honestly and let you decide, because we'd rather earn your trust than sell you a system you don't need yet.
We do offer twice-a-year maintenance across the area. The spring visit focuses on cooling: cleaning the coils, verifying the refrigerant charge, testing the capacitor, and measuring airflow. The fall visit covers heating: cleaning the burners, checking combustion, and testing every safety control. Staying on that schedule extends equipment life, helps prevent breakdowns in the middle of a heat wave or cold snap, and often pays for itself in lower energy bills.
Usually the same day. Emergencies like a dead AC or a furnace that won't light jump ahead of scheduled tune-ups, and we'll tell you an honest arrival time as soon as you call (843) 268-6987. Once our technician arrives, the common failure parts are already on the truck, so most problems get fixed without a second trip.
In many cases, yes. Ductless systems shine in room additions, garages, sunrooms, and older homes that were built without ducts. The process starts with sizing each zone to the actual room, followed by thoughtful placement of the indoor and outdoor units and a clean install of the line set, condensate drainage, and electrical service. If central equipment would be the better fit for your layout, we'll let you know.
We do, and we'll help you decide which makes sense. We fix AC systems, furnaces, heat pumps, and mini-splits no matter who made them. If replacement is the better call, we handle everything: old equipment removal, a correctly sized new system, a clean installation, and a full test of every mode. You'll have a clear quote for each option before making a decision.

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