HVAC · Florence, SC
How much does furnace replacement cost in Florence, SC? (2026)
In Florence, furnace replacement runs $3,550–$6,350, with most paying around $4,950 — about 8% below the national average. Replacing a residential furnace, including the unit and installation labor.
Updated June 2026 · Localized estimate, not a quote
Most homeowners pay around $4,950
- Typical cost
- $4,950
- Labor vs US
- −12%
- Climate
- Hot
- Local permit
- $200
Refine your estimate
Tune it to your home to narrow the furnace replacement range.
Key takeaways for Florence
- Most Florence homeowners land around $4,950 for furnace replacement, within a $3,550–$6,350 range that sits about 8% below the national average.
- This estimate departs from the national number mainly because Florence labor sits −12% versus the US average.
- Permit costs are baked in: Florence charges about $200 for the HVAC permit.
- A well-installed job here typically lasts 15–30 years — plan the next replacement instead of waiting for an emergency one.
- Roughly 5–15% comes off when you book in Spring and fall (Mar–May, Sep–Oct) instead of peak season.
- Don't price this without checking the rebates section below — federal 25C/25D credits and local utility incentives can bring the net cost down.
What goes into the price in Florence
A typical Florence furnace replacement of $4,950 breaks down roughly like this — materials priced near the national level, labor set by local rates.
| Line item | Florence 2026 range |
|---|---|
| Materials & equipmentHardware and supplies for the job; national pricing applies almost everywhere you go. | $1,350 – $2,450 |
| Labor & installationThe installation work itself — removal, setup and startup — is what your city's labor rate actually moves. | $2,000 – $3,700 |
| Permit & feesWhat this city's building department charges for a HVAC permit. | $200 |
| Total installed cost | $3,550 – $6,350 |
Split from the Florence estimate using a 60% local-labor share; line items sum to the total.
Why furnace replacement costs what it does in Florence
- Florence's labor rates sit about 12% lower than the national average (based on price levels for the Florence metro area), pushing the price down.
- Because Florence sits in a hot climate zone, furnace replacement costs run about 5% lower than a neutral-climate baseline.
- Florence's HVAC permit runs roughly $200, which is already part of the number above.
Furnace Replacement cost by home size in Florence
Furnace cost scales with the heating capacity (BTU) your home needs — roughly 40–45 BTU per square foot in a mixed climate. Larger homes need a bigger unit and more ductwork.
| home size | Florence 2026 range |
|---|---|
| 1,000 sq ft (≈45,000 BTU) | $2,650 – $4,800 |
| 1,500 sq ft (≈68,000 BTU) | $3,100 – $5,500 |
| 2,000 sq ft (≈90,000 BTU) | $3,550 – $6,350 |
| 2,500 sq ft (≈110,000 BTU) | $4,100 – $7,250 |
| 3,000 sq ft (≈130,000 BTU) | $4,600 – $8,150 |
| 3,500+ sq ft (≈150,000 BTU) | $5,150 – $9,000 |
National size ranges localized to Florence labor and climate.
Furnace Replacement cost by type in Florence
| Gas furnace | $3,450 – $6,300 |
| High-efficiency gas furnace | $3,100 – $6,300 |
| Electric furnace | $1,950 – $4,200 |
Adjusted to Florence from national type-level ranges.
Furnace Replacement cost by efficiency in Florence
Efficiency is measured in AFUE — the percentage of fuel turned into heat. Higher AFUE costs more upfront but cuts fuel bills, and in cold (northern) regions the DOE requires ≥95% AFUE gas furnaces.
| 80% AFUE (standard)Lowest upfront; fine in mild climates | $2,850 – $5,050 |
| 90–95% AFUE (high-efficiency)Best all-round value in most regions | $3,550 – $6,350 |
| 96%+ AFUE (condensing, premium)Lowest fuel bills; required in cold zones | $4,600 – $8,600 |
Labor vs. materials in Florence
Install crew, removal, permit & startup — the part Florence rates move most.
Equipment & materials — priced closer to the national level.
Split based on a typical $4,950 Florence project; your mix varies with scope.
How we estimate it
| National range | $3,800 – $7,000 |
| Florence labor adjustment | ×0.93 |
| hot climate factor | ×0.95 |
| Local permit | +$200 |
| Florence estimate | $3,550 – $6,350 |
Promo prices vs. the real cost
A cheap headline number is usually a hook to get a technician in the door, not the price of the job. Compare it against the real installed estimate above:
- Service call / diagnostic fee$75–$150
- "Free" replacement estimate$0 — it's a sales visit
- Seasonal tune-up promo$79–$129
- Financing offers$0 down · 0% APR, 12–60 mo
Additional furnace replacement costs to budget for
Expect a few of these rather than all. Which ones apply tracks with access, hidden damage and local code.
| Old furnace removal & disposal | $50 – $330 |
| New ductwork (vs. repair $300–$1,500)Only if ducts are missing or failing | $1,000 – $5,000 |
| Gas line run or upgrade | $250 – $800 |
| Chimney liner (for high-efficiency venting) | $600 – $2,500 |
| Smart thermostat | $150 – $500 |
Typical national add-on ranges; confirm locally during your quote.
What's included
- Thermostat connection and system startup/testing
- The furnace unit and burner assembly
- Removal and disposal of the old unit
- Installation labor and basic ductwork connections
What affects the cost
- Fuel type (gas vs electric) and AFUE efficiency rating
- Heating capacity (BTU) needed for your square footage
- Whether a chimney liner or new gas line is required
- Condition of existing ductwork and venting
Ways to save on furnace replacement in Florence
- Look for utility rebates on high-efficiency models
- Right-size the unit; oversizing wastes money and cycles hard
- Schedule in the off-season (spring/summer) for better rates
- Get at least 3 quotes — installed prices vary widely
How long does furnace replacement last in Florence?
Gas furnaces typically last 15–20 years; well-maintained units can reach 30.
An annual tune-up keeps efficiency up and protects the warranty.
Signs you need furnace replacement in Florence
- The furnace is 15+ years old (near or past its service life)
- Heating bills keep climbing despite no change in usage
- Some rooms are warm while others stay cold (uneven heating)
- Frequent repairs — you've called for service more than once or twice recently
- Banging, rattling or screeching noises on startup
- A yellow or flickering burner flame instead of steady blue (have it checked immediately)
- More dust, dryness, or a stale smell when the heat runs
Repair or replace in Florence?
Repair if…
- The unit is under ~10 years old and otherwise efficient
- The fix is a single inexpensive part (igniter, flame sensor, capacitor)
- It's still under manufacturer warranty
Replace if…
- It's 15+ years old and needs a major part
- The heat exchanger is cracked (a safety issue — replace, don't repair)
- The repair costs more than about half of a new system
- It's an 80% AFUE unit and your fuel bills are high in a cold climate
Rebates & incentives in South Carolina
Most 2026 rebates reward switching to a heat pump, not a like-for-like gas furnace. Replacing a gas furnace, your savings are mainly utility efficiency rebates (high-AFUE models) — but pricing out a heat pump often qualifies you for far larger rebates.
The federal 25C tax credit (up to $2,000 for heat pumps; $600 for high-efficiency AC or furnaces) and the 25D credit ended December 31, 2025 under the One Big Beautiful Bill Act — neither is available for 2026 installs. The remaining federal help is the IRA Home Electrification & Appliance Rebates (HEAR): up to $8,000 toward a heat pump for households under 150% of area median income, paid at point of sale where a state has launched its program.
Verified July 2026. Rebate budgets deplete and program windows change fast — confirm current amounts and eligibility with your utility and the DSIRE database before you budget. Costadia does not administer these programs.
Cheapest time for furnace replacement in Florence
Demand for HVAC work falls off a cliff in the shoulder months, and contractors discount to keep their crews booked. Wait for a 100-degree day or a hard freeze, though, and you're paying emergency rates for a system that just quit.
Why furnace replacement quotes vary — and how to compare them fairly
A wide spread between bids rarely means someone is overcharging; it usually means they priced different work. Below is what moves the number and how to line the quotes up.
Why a quote looks high (or low)
- Sizing was guessed from square footage instead of a Manual J load calculation, so the equipment is wrong.
- One quote bundles ductwork, electrical, permit and old-unit removal; another quietly leaves them out.
- Equipment tier isn't matched — a 14.3 SEER2 bid will always undercut an 18 SEER2 one for the "same" job.
Get an apples-to-apples bid
- Insist on a Manual J load calculation, not a square-footage guess.
- Ask every bidder for the same SEER2/AFUE rating so you compare like for like.
- Require an itemized quote splitting equipment, labor, permit and add-ons.
- Get at least three written bids before you sign.
Questions to ask Florence HVAC pros
Before you pick, make each contractor answer the same things — gaps in their replies tell you as much as the price.
- 1Did you run a Manual J load calculation to size the system, or estimate from square footage?
- 2What AFUE/SEER2 rating is this unit, and what's the payback vs. the next tier up?
- 3Is removal of the old equipment, the permit, and startup testing included in the quote?
- 4Will my existing ductwork and venting work as-is, or is repair/resizing needed?
- 5What's covered under the labor warranty vs. the manufacturer's parts warranty?
Furnace Replacement in Florence
How much does furnace replacement cost in Florence, SC?
Most Florence homeowners pay around $4,950 for furnace replacement, though 2026 quotes stretch from $3,550 to $6,350. Florence labor rates, the hot climate and permit fees each shift the total, and all three already sit inside this range.
Is furnace replacement more expensive in Florence than average?
Why the gap? Florence prices about 8% lower than the national average, and local labor — indexed at 0.93 against the US average — does most of the work., before the HVAC permit, which runs about $200.
Do I need a permit for furnace replacement in Florence?
Do you need a permit? For this work in Florence, yes — a HVAC permit at roughly $200, and the estimate above already carries it.
What affects furnace replacement cost the most?
Here's the short version: replacing a residential furnace, including the unit and installation labor. The biggest drivers are equipment/material grade, the size and complexity of your home, local labor rates, and your climate zone (hot).
How much should you really budget for HVAC in 2026?
Get the sizing wrong or the efficiency tier mismatched to your climate, and the price drifts fast in either direction. Below, a look at how those choices — plus brand markup — shape the real number.
The budget-first case
Run a Manual J load calculation, then buy the standard tier — 80% AFUE, 14.3 SEER2 — and stop there. Where summers are short and winters are gentle, the equipment idles most of the year, so premium efficiency never gets enough runtime to earn back its price. Paying for SEER2 you'll rarely tap is the classic way a mild-climate homeowner overspends.
The efficiency-first case
In a hot-summer or cold-winter region, a higher SEER2/AFUE unit — or a heat pump — earns its premium back in lower bills, and utility and state rebates can still cut into the sticker (the federal 25C/25D credits ended Dec 2025). Run the payback math before defaulting to the cheapest box.
The longevity case
The most expensive variable on the quote isn't the logo — it's whether the system is sized right and installed well. Oversize a premium unit and it short-cycles, wears fast and underperforms; commission a correctly sized mid-tier one and keep up the annual service, and it simply lasts longer. Spend on the installation, not the badge.
The costly errors in an HVAC job are a bad load calculation and a sloppy install — not the logo you chose. Size it with a real Manual J, let your climate set the efficiency tier, and claim whatever rebates you still qualify for.
Editorial analysis by Serhat Özçelik, reviewed by Costadia Editorial. These are our own cost perspectives, not third-party endorsements.
How we calculated this estimate
We start with 2026 national furnace replacement ranges compiled from contractor-pricing sources (Angi, HomeGuide, Fixr and EnergySage averages), then localize them to Florence using the BEA Regional Price Parity labor index (×0.93 here), the IECC hot-climate factor (×0.95) and a typical local permit fee (≈$200). Federal incentive details reference the IRS Inflation Reduction Act (25C/25D) and DSIRE.
This is a planning estimate, not a quote.Actual prices vary with your home's condition, equipment grade and contractor — always confirm with licensed local pros before budgeting.
References & data sources
Our Florence furnace replacement estimate is built from these primary, mostly government sources — not a single aggregator.
- Occupational Employment & Wage Statistics (metro wages) — U.S. Bureau of Labor Statistics.Metro-level trade wages behind each city's labor index.
- Regional Price Parities (state & metro) — U.S. Bureau of Economic Analysis.Regional price levels used where metro wage data is unavailable.
- IECC Climate Zones — U.S. DOE — Building Energy Codes Program.Climate-zone factors applied to weather-sensitive projects.
- Home Energy Tax Credits (25C / 25D) — Internal Revenue Service.Federal rebate and tax-credit figures for eligible upgrades.
- Database of State Incentives for Renewables & Efficiency — DSIRE — NC State University.State and utility incentive programs by ZIP code.
Furnace replacement alternatives in Florence
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Bundling these shares labor and setup — and a single visit.
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A furnace replacement rarely happens in isolation — these projects commonly come up alongside it.
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