AC Installation in Florence
Get fast, fair pricing from licensed local pros. Typical Florence cost: $3.5k – $6.9k+ installed.
- Central AC (replace)
- $3.5k – $6.9k+
- New central AC + ducts
- $5.2k – $11k+
- Ductless mini-split
- $2.6k – $6.9k
- Permit & inspection
- $65 – $350
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AC installation cost by system.
Installed pricing for Florence, adjusted for local labor. Higher SEER2 tiers, larger tonnage, and new ductwork add to the base.
In Florence, South Carolina, AC installation costs typically range from $3,500 to $6,900 for a like-for-like central AC replacement, and $5,200 to $11,200+ if new ductwork is needed. Ductless mini-splits run $2,600–$6,900, while heat pumps—the recommended system for this hot-humid climate—cost $4,300–$10,400+. With a median home age of 46 years and a homeownership rate of 50.2%, many Florence homeowners are replacing aging systems. South Carolina requires a mechanical permit for AC installation, and the state energy code (based on IECC) mandates a minimum 14.3 SEER2 for the Southeast region. The federal 25C tax credit offers up to $2,000 for qualifying heat pumps and up to $600 for high-efficiency central AC, which can offset some costs.
- Central AC, like-for-likeExisting ducts in good shape$3,500 – $6,900+
- New central AC + ductworkFirst-time or full duct replacement$5,200 – $11,000+
- Ductless mini-splitSingle or multi-zone, no ducts$2,600 – $6,900
- Heat pump (cooling + heating)Qualifies for federal & local rebates$4,300 – $10,500+
- Permit & inspectionRequired in most jurisdictions$65 – $350
* High-efficiency systems cost more upfront but may qualify for federal tax credits and utility rebates.
Pricing reviewed · Local data from U.S. Census ACS
HVAC systems in Florence
U.S. Census ACS- Households
- 15,972
- Homeowners
- 9,625
- 50% own
- Median home value
- $175,700
- Median income
- $56,031
- Median home built
- 1980
- Housing units
- 19,161
With a median home built in 1980, many Florence AC and furnace systems are at or past their 12–15 year lifespan — a common reason replacements spike here.
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What’s different about Florence.
Generic cost pages skip the things that actually decide your price and which system fits here — local code, climate, and the money you can claim back.
Recommended unit for Florence
Given South Carolina’s hot-humid climate and heat-pump heating, high-seer2 heat pump is the sensible default for most Florence homes. With a long, hard cooling season here, stepping up the SEER2 tier pays back through lower summer bills. A pro can confirm the right size and system for your home with a load calculation.
Sources: Dominion Energy SC Heating and Cooling Rebates · Duke Energy HVAC Replacement Rebate · EIA South Carolina Electricity Profile
What Florence code requires
Installing or replacing an HVAC system in Florence follows South Carolina rules under the state mechanical code. Here’s what applies statewide:
- PermitRequired
Mechanical permit pulled by your licensed HVAC contractor; covers equipment, refrigerant, and the electrical disconnect.
- SEER2 minimum14.3 SEER2 (Southeast)
Federal Southeast-region minimum for new split-system AC. Higher tiers cut bills and unlock rebates.
- Load calculationRecommended
Sizing by load calc — not rule of thumb — prevents an oversized unit that short-cycles and never dehumidifies.
- RefrigerantR-454B / R-32 (R-410A phased down 2025+)
- Good to know—
South Carolina enforces the IECC-based state energy code with a hot-humid focus; high heat-pump adoption means electric-strip backup sizing and humidity control matter more than cold-climate concerns.
Sources: Dominion Energy SC Heating and Cooling Rebates · Duke Energy HVAC Replacement Rebate · EIA South Carolina Electricity Profile
Not sure which rules and rebates apply to your home?
A licensed Florence pro will walk you through code, the right unit, and what you can claim back — in one quick call.
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Money back in Florence
South Carolina heating is mostly heat-pump, which shapes the money back:
- State$400-$1,000 (up to $650 for electric furnace to heat pump)Dominion Energy SC - Heating & Cooling Rebates (ENERGY STAR heat pump) →
State or utility program — verify eligibility before you buy.
- State$500-$1,000 (heat pump replacement; requires Home Energy Check)Duke Energy SC - HVAC Replacement / Home Energy Improvement rebates →
State or utility program — verify eligibility before you buy.
- Federal30% of cost, up to $2,000Federal 25C tax credit — heat pump →
For a qualifying ENERGY STAR heat pump meeting the CEE efficiency tier. Claimed on your federal return.
The federal 25C tax credit (30%, up to $2,000 for a qualifying heat pump and up to $600 for a high-efficiency central AC) applies in every state, including South Carolina.
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- 1
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- 2
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- 3
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AC Installation in Florence, explained.
What Affects AC Installation Costs in Florence
System type is the biggest factor: heat pumps are more expensive than standard central AC but provide efficient heating. Older homes (median built 1980) may need ductwork modifications or replacement, adding $1,700–$4,300+. Permit fees and load calculations are required by code. Efficiency choices (e.g., 16 SEER2 vs. 14.3 SEER2 minimum) also affect price. Labor rates reflect the local market, and the hot-humid climate demands proper humidity control, which may influence equipment selection.
Common AC Installation Issues in Florence
Oversized or Undersized Equipment
Many older homes have systems that are too large or too small; a load calculation is essential to match the home's cooling needs and avoid short cycling or poor dehumidification.
Aging Ductwork
With a median home age of 46 years, ducts may be leaky, undersized, or contain asbestos insulation, requiring repair or replacement for efficient operation.
Humidity Control
Florence's hot-humid climate demands systems with good moisture removal; improper sizing or low airflow can lead to mold and discomfort.
AC Installation FAQs — Florence
Yes, South Carolina requires a mechanical permit for AC installation. A licensed contractor typically handles the permit process and ensures compliance with the state energy code.
AC Installation near Florence
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