Sizing matters more here than almost anywhere — with summers averaging 91°F, an undersized or oversized unit shows up fast. This page covers what AC installation costs in Charleston, how to hire a good contractor, and the local businesses listed for it.
Charleston's hot, humid summers and coastal salt air mean air conditioning runs hard for much of the year, and outdoor equipment near the water benefits from corrosion-resistant coils — factors worth discussing with any local installer.
For Charleston homeowners, sizing matters more here than almost anywhere — with summers averaging 91°F, an undersized or oversized unit shows up fast. A local contractor who knows Charleston homes and this climate will size and service equipment for the conditions here rather than a generic spec.
Read the full AC Installation guide for common problems, what to ask, and safety notes, then estimate your project with the cost calculator.
Listed from public business information and not independently verified — confirm licensing and insurance before hiring.
A central AC installation typically runs $5,000 to $11,000 installed, depending on system size and efficiency. Labor rates in South Carolina tend to run a little below the national average.
These are planning ranges, not quotes. Get a tailored figure with the cost calculator, then compare it against written quotes from Charleston contractors.
A central AC installation typically runs $5,000 to $11,000 installed, depending on system size and efficiency. Labor rates in South Carolina tend to run a little below the national average.
Confirm the contractor is licensed in South Carolina and carries insurance, ask for the price in writing, and check that they serve your part of Charleston. You can compare the Charleston contractors below, browse the full Charleston directory, or tell us what you need and we'll match you with vetted local pros.
Many contractors offer same-day or next-day service, and 24/7 emergency response for a no-heat or no-cool situation in extreme weather. Emergency and after-hours visits usually carry a premium.
Tell us what you need once — we'll match you with vetted Charleston contractors.
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