Heat Pump Cost in Charleston, South Carolina
Local pricing, rebates, and heating savings data for Charleston homeowners.
Heat Pumps in Charleston: What Homeowners Should Know
Charleston has roughly 1,543 heating degree days a year, a mild climate that determines how hard a heat pump works each winter. A typical 2,000 sq ft home here needs about a 3-ton system, installed for around $13,000.
Swapping electric-resistance heat for a heat pump in Charleston cuts heating costs from about $819 to $248 a year — a saving of roughly $571 annually at the local electricity rate of $0.151/kWh, and an estimated -$2,215 over 15 years. Savings are even larger if you currently heat with propane or oil. Note: the federal 25C heat-pump tax credit expired at the end of 2025, but South Carolina rebates and the income-qualified HEEHRA program (up to $8,000) can still bring the cost down. The local utility is Dominion Energy SC.
Cost & Savings Breakdown
2,000 sq ft home switching from electric resistance in Charleston
15-Year Savings Projection
Available Rebates
Choosing a Heat Pump Installer in Charleston
- 1.Get at least 3 quotes. Prices in South Carolina vary widely — comparing bids on the same ~3-ton system is the fastest way to avoid overpaying.
- 2.Insist on a Manual J load calculation. Proper sizing for Charleston's 1,543 heating degree days is the single biggest factor in comfort and efficiency.
- 3.Ask about high-efficiency variable-speed units. Look for a strong HSPF2 rating and a 10-year compressor warranty.
- 4.Ask about rebate paperwork. Good installers handle South Carolina rebate and HEEHRA applications for you.
Common Questions
How much does a heat pump cost in Charleston?
A whole-home heat pump in Charleston, South Carolina costs approximately $13,000 installed. The federal 25C tax credit expired December 31, 2025.
How much can a heat pump save in Charleston?
A typical Charleston home switching from electric-resistance heat saves about $571 per year — roughly -$2,215 over 15 years — with a payback of about 22.8 years. Savings are even larger versus propane or heating oil.
What size heat pump do I need in Charleston?
A typical 2,000 sq ft home in Charleston needs roughly a 3-ton heat pump, given the local climate of 1,543 heating degree days. A Manual J load calculation from your installer will confirm the exact size.
Do heat pumps work in Charleston's climate?
Yes. With 1,543 heating degree days, Charleston is a mild climate. Standard heat pumps perform well in this climate year-round.
Planning other home-energy upgrades?
Solar, batteries, heat pumps and EV chargers all work together. Run the numbers on the rest of your electrification plan: