5 Best HVAC Services in Charleston (2026)

What people praise

• A large company with several departments, useful if a heating problem also involves gas or plumbing
• Online booking and a membership club for regular maintenance
• Customers describe clear explanations and technicians who stayed courteous on a holiday call

Worth knowing

• The reviews here mostly describe plumbing jobs rather than heating or cooling, so the HVAC evidence comes mainly from its profile and website
• Based in South Charleston rather than Charleston proper

What people praise

• A preventive tune-up where the technician washed the coils and checked refrigerant and compressor power draw
• A replacement that included converting to a gas furnace, finished with clean-up
• A technician who walked a customer through a repair and checked the ductwork
• A final bill that matched the phone quote

Worth knowing

• Its website is a branch page of a company that also serves Huntington

What people praise

• A replacement quote that was reduced by sizing down to a 4-ton unit, per one customer
• A phone answered directly on a late Sunday when a thermostat failed
• Customers who say they have used the company for many years
• Technicians who explain what they are inspecting

Worth knowing

• Plumbing is also on the service list, so it is a multi-trade shop rather than HVAC-only

What people praise

• A technician arrived about 30 minutes after a no-heat call and fixed the problem in roughly 40 minutes
• Parts ordered for a unit described as more than 35 years old
• Installers who corrected a duct problem left by an earlier company
• Technicians who covered their boots in customers' homes

Worth knowing

• Based in Dunbar rather than Charleston itself
• Its website names Dunbar and Apple Grove as its service area, so confirm it covers your Charleston address

What people praise

• A call back with an arrival window of 10 to 15 minutes, and a visit that beat it
• A technician who showed the problem and explained the fix before starting
• Honest advice that an air filter did not need changing yet
• A technician who worked up different cost options for an unexpected repair

Worth knowing

• The name includes electrical and plumbing, so ask who handles those jobs
• The linked page is aimed at furnace repair, so ask about air conditioning replacement if that is your job