High-quality Solutions
High-quality Solutions | HVAC Unit Replacement | Heating and Air Conditioning | Charleston
In Charleston, the salt air, sweltering summers, and damp winters can push an aging system beyond its limits. When that moment comes, trust HEP’s High-Quality Solutions Heating & Air Conditioning for a seamless HVAC unit replacement that restores comfort—and keeps utility bills in check. Our local, NATE-certified technicians evaluate your home’s unique needs, recommend energy-efficient systems from top brands, and schedule installation at a time that works for you.
From removing your old equipment to fine-tuning your new thermostat, we handle every detail with the courtesy Lowcountry homeowners deserve. Transparent pricing, flexible financing, and industry-leading warranties mean you get peace of mind along with perfectly balanced indoor air. Ready to feel the difference? Call or click today and discover why neighbors across Charleston choose HEP when it’s time for HVAC unit replacement.
FAQs
How do I know it’s time to replace my HVAC unit instead of repairing it?
In Charleston’s coastal climate, HVAC equipment works extra-hard combating heat, humidity, and salt air. If your system is 10–15 years old, needs frequent repairs, struggles to keep set temperatures, or causes unusually high utility bills, replacement is usually more economical than another major repair. Modern units offer SEER2 ratings up to 20+, cutting cooling costs up to 40 percent compared with systems installed a decade ago.
What size HVAC system do I need for my Charleston home?
Correct sizing is based on a Manual J load calculation that factors in square footage, insulation quality, number of windows, orientation to the sun, and local design temperatures (94 °F/75 °F summer and 36 °F/28 °F winter in Charleston). An on-site assessment prevents the common mistake of oversizing, which causes short cycling, poor humidity control, and higher energy costs. We perform the full calculation before presenting equipment options.
How much does it cost to replace an HVAC unit in Charleston?
Pricing varies with capacity, efficiency, and installation complexity, but most complete change-outs in the Tri-County area fall between $6,500 and $12,000 for a single-stage system and $9,500 to $17,000 for variable-speed, high-efficiency heat pumps or gas furnaces with matching coils. Quotes include equipment, labor, permits, haul-away of the old unit, and a new coastal-rated condenser pad if required.
How long does an HVAC replacement take from start to finish?
Once equipment is in stock and permits are approved, the typical replacement takes one full working day (6–10 hours). This includes removing the old indoor and outdoor units, installing new equipment, adapting ductwork and electrical connections, evacuating and charging the refrigerant lines, testing airflow and refrigerant pressures, and performing a complete system start-up. Larger homes or significant duct modifications can extend the project to two days.
Are there energy-efficient options suited to Charleston’s humid climate?
Yes. Variable-speed heat pumps and two-stage air conditioners paired with communicating air handlers excel in hot, humid regions because they run longer at lower speeds, wringing out moisture while using less electricity. Look for units with a SEER2 rating of 16 or higher and a sensible heat ratio (SHR) below 0.80. Coastal-protected condensers with epoxy-coated coils and stainless-steel hardware resist corrosion from salt air.
Do you offer financing, rebates, or tax incentives for HVAC replacement?
We partner with local banks and national lenders to provide 0 % APR promotional financing for up to 60 months on approved credit. Dominion Energy South Carolina currently offers rebates up to $700 for qualifying high-efficiency heat pumps, and federal Inflation Reduction Act tax credits cover 30 % of the installed cost (up to $2,000) for ENERGY STAR certified equipment. We handle the paperwork so you receive all available savings.