Best Heat Pump Replacement Companies in Charleston, SC
Heat Pump Replacement in Charleston: sizing + authorization
A replacement or conversion is bid on Manual J load calculation, manufacturer authorization, and matched-system commissioning — oversizing is the #1 cause of comfort complaints. Here is what each of the 6 contractors below publishes: Verify your state's HVAC contractor license through the state licensing board before paying a deposit.
Top picks
Consistently strong customer feedback (4.9★ from 6,560+ Google reviews; 2.9★ from 85+ Yelp reviews).
Google 4.9★ (6,560+)Yelp 2.9★ (85+)
Consistently strong customer feedback (4.9★ from 2,135+ Google reviews; 4.1★ from 50+ Yelp reviews).
Google 4.9★ (2,135+)Yelp 4.1★ (50+)
Consistently strong customer feedback (4.9★ from 1,310+ Google reviews; 3.8★ from 45+ Yelp reviews).
Google 4.9★ (1,310+)Yelp 3.8★ (45+)
Consistently strong customer feedback (4.9★ from 1,050+ Google reviews; 4.3★ from 25+ Yelp reviews).
Google 4.9★ (1,050+)Yelp 4.3★ (25+)
Consistently strong customer feedback (4.8★ from 3,050+ Google reviews; 2.4★ from 70+ Yelp reviews).
Google 4.8★ (3,050+)Yelp 2.4★ (70+)
Other Charleston HEAT_PUMP_INSTALL providers
These HEAT_PUMP_INSTALL providers serve the area but didn't surface a category award or ≥2 verified heat pump replacement signals. Confirm credentials and pricing by phone.
Typical Heat Pump Replacement costs in Charleston, SC (2026)
Last updated
Estimated ranges for Charleston, SC. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Ducted air-source heat pump + air handler, full system (installed) | $6,950–$13,900 |
| Air handler replacement (paired with heat pump) | $1,300–$3,050 |
| Ductwork modification (resize / re-balance per Manual D) | $520–$1,900 |
Why Charleston's Humid Summers Change Heat Pump Installation Choices in South Carolina
Charleston's long, humid summers push cooling loads higher and make heat pump sizing and dehumidification critical for reliable performance. Homeowners searching for the best heat pump installation companies in Charleston, SC should prioritize licensed contractors experienced with coastal humidity and salt-air corrosion mitigation.
What Charleston homeowners ask about Heat Pump Installation (permits, licensing, and emergency calls)
- Can I replace my gas furnace with a heat pump?
- Yes — a heat pump both heats and cools, so it can fully replace a gas furnace. In colder areas a dual-fuel setup keeps the furnace as backup for the coldest days. Either way, insist on a Manual J load calculation; conversions can need duct resizing or an electrical upgrade.
- When is replacing an old heat pump better than repairing it?
- If it's past 12–15 years, still uses phased-out R-410A refrigerant, needs a compressor, or the repair bill approaches a third of replacement cost, replacing usually wins. A reputable contractor compares both paths before recommending.
- How should homeowners vet contractors for a full heat pump replacement in Charleston?
- Look for contractors who document load calculations, permit handling, and electrical upgrade experience. Verify references for recent local replacements and confirm technicians’ credentials, such as NATE certification, if listed. Compare written scopes that show equipment model numbers, coil coatings, and any panel or permit allowances.
- What permits are typically required for a heat pump replacement in Charleston?
- Permits for electrical work, equipment replacement, and any structural modifications are commonly required in Charleston. The city may require the contractor to pull the permit and show inspection sign-offs. Confirm with the installer who will obtain permits and include permit fees in the written estimate.
- What technical signals show a contractor is experienced with inverter heat pumps and dual-fuel controls?
- Look for written documentation of inverter model installations, manufacturer training or dealer status, and examples of dual-fuel control integration. Contractors should supply model numbers, installation photos, and reference projects that demonstrate inverter commissioning and control tuning. Request proof of relevant training where available.
- How do I get a quote from these heat pump installation companies?
- Submit one request on this page and we send it to the vetted heat pump installation pros in Charleston, SC listed here. They send quotes back — no obligation.