Residential and Commercial HVAC Services in Lexington, SC

Mack Heating & Cooling serves Lexington's Heating and Cooling needs!

Please call us today at (803) 996-4791 to consult with our home comfort specialist.

About Lexington, SC - Happy to be your hometown Heating & Air Conditioning Contractor!

Lexington has grown from a small county seat into one of the fastest-growing towns in the Midlands. New subdivisions stretch toward Lake Murray, while the historic downtown along Main Street keeps its small-town character. Shopping centers and medical offices line Sunset Boulevard and US-378, serving families who moved here for the schools and the lake. Mack Heating & Cooling provides residential and commercial HVAC services in Lexington, SC, covering repair, maintenance, installation, and replacement for air conditioners, furnaces, and heat pumps.

AC Repair and Maintenance in Lexington, SC

Hot, humid summers near Lake Murray keep air conditioners working hard from late spring into early fall. New or old, every cooling system needs regular care to keep up.

Lexington's mix of lakefront homes, established neighborhoods, and brand-new construction means we see every type of system, from builder-grade units to high-efficiency variable-speed equipment.

Residential AC Repair and Maintenance

Watch for these common AC problems:

• Air that never feels cold
• Upstairs rooms running several degrees warmer
• An outdoor fan that stops spinning
• High humidity inside the house
• Short cycling throughout the day

A seasonal tune-up covers coil cleaning, refrigerant checks, drain line flushing, electrical testing, and airflow measurement. Lake homes get a close check for corrosion and clogged drains caused by extra moisture.

Commercial AC Repair and Maintenance

Retail centers, restaurants, dental offices, and schools across Lexington need reliable cooling all summer. We provide emergency repairs, rooftop unit maintenance, and refrigerant leak detection to keep your business open and comfortable.

A single missed service visit can turn a small refrigerant leak or a worn belt into a full shutdown during the hottest week of the year.

AC Installation and Replacement in Lexington, SC

Residential AC Installation and Replacement

Mack Heating & Cooling sizes every new air conditioner with a room-by-room load calculation. Many two-story homes in Lexington's newer neighborhoods struggle with warm upstairs rooms, and proper sizing and zoning correct that problem. Older homes in established neighborhoods often need replacement units that fit existing pads and line sets.

A new AC system can deliver:

• Lower cooling bills
• Balanced temperatures on every floor
• Stronger humidity control
• Long-term reliability

Commercial AC Installation and Replacement

We assess building size, occupancy, and equipment heat loads before installing or replacing rooftop units, split systems, and ductless systems. Newer buildings benefit from a startup inspection, and older downtown storefronts benefit from replacing rooftop units that cost more in repairs each year.

Furnace Repair and Maintenance in Lexington, SC

Lexington winters stay mild most of the time, yet January nights can still dip into the 20s. A furnace that fails during a cold snap leaves a home or business uncomfortable fast.

Schedule furnace repair when you see:

• Heat that takes too long to warm the space
• A furnace that starts and stops repeatedly
• Unfamiliar odors from the vents
• A sudden jump in gas bills

Residential and commercial furnace maintenance includes burner cleaning, heat exchanger inspection, carbon monoxide testing, blower service, and safety control checks.

A fall tune-up catches worn igniters, dirty flame sensors, and cracked heat exchangers before the first cold night.

Furnace Installation and Replacement in Lexington, SC

Mack Heating & Cooling installs and replaces gas furnaces for homes and businesses throughout Lexington. We match each new furnace to the building's heating load, so it runs efficiently and heats every room evenly. Commercial customers can choose standalone furnaces or gas-fired rooftop units.

Furnace replacement delivers:

• Lower heating costs
• Fewer emergency repairs
• Quieter operation
• Consistent comfort through cold snaps

Heat Pump Repair and Maintenance in Lexington, SC

Heat pumps are the most common heating and cooling choice in many Lexington subdivisions. They run in every season, so they need attention twice a year.

Signs your heat pump needs repair:

• Ice covering the outdoor unit that will not clear
• The system stuck in heating or cooling mode
• Auxiliary heat running constantly
• Weak airflow from the vents

Heat pump maintenance covers reversing valve testing, defrost control checks, coil cleaning, and refrigerant verification for residential and commercial systems.

We recommend a spring visit before cooling season and a fall visit before heating season to keep the system efficient in both modes.

Heat Pump Installation and Replacement in Lexington, SC

A new heat pump provides efficient heating and cooling from one system. Mack Heating & Cooling installs and replaces ducted heat pumps and ductless mini-splits, including systems for bonus rooms, garages, and lake house additions. For businesses, we install commercial heat pumps and split systems sized for offices and retail spaces.

A new heat pump gives you:

• Efficient heating and cooling in one system
• Lower monthly energy bills
• Better humidity control near the lake
• Independent comfort for bonus rooms and additions

Ductwork Services in Lexington, SC

Ductwork connects your AC, furnace, or heat pump to every room. Builder-installed ducts in newer subdivisions sometimes come loose or run undersized, which leaves some rooms hot and others cold. Mack Heating & Cooling inspects, seals, repairs, and replaces residential and commercial ductwork to improve airflow, balance temperatures, and lower energy bills.

Commercial HVAC Maintenance Plans in Lexington, SC

Preventive maintenance agreements give Lexington businesses a predictable schedule for AC, furnace, and heat pump service. We visit before each season, document equipment condition, and flag parts before they fail. Plans lower energy use, reduce repair costs, and extend equipment life.

Maintenance plan benefits include:

• Priority scheduling during peak seasons
• Fewer unexpected shutdowns
• Service records for every unit
• One agreement for multiple locations

Reliable HVAC Services in Lexington, SC

Lexington keeps growing, and its homes and businesses need heating and cooling that keeps up. Mack Heating & Cooling provides AC, furnace, and heat pump repair, maintenance, installation, and replacement throughout Lexington, from subdivisions near Lake Murray to storefronts on Main Street. Our technicians handle everything from a quick repair to a full system replacement. Contact our team to schedule service.