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AfterHow Much Does Furnace Replacement Cost in Jacksonville?
Furnace replacement in Jacksonville, FL typically runs between $3,800 and $7,900 for a mid-range unit installed, with most homeowners landing around $5,200 to $6,400 depending on system size, efficiency rating, and ductwork condition. That price includes the furnace itself, labor, removal of the old unit, and a standard setup. High-efficiency models in the 90%+ AFUE range push toward the top of that scale, while simpler 80% single-stage units sit at the lower end.
Before you make a decision, it helps to see exactly what goes into that number. Jacksonville’s climate, housing stock, and utility costs all shape what a replacement actually costs here, not in some national average.
Furnace Replacement Cost Breakdown (2026)
Here’s what we’re seeing across the Jacksonville market in 2026, line by line. These are the numbers we quote from daily, covering everything from Avondale bungalows to St. Johns County new builds.
| Line Item | Typical Jacksonville Range | Notes |
|---|---|---|
| Furnace unit (80% AFUE, single-stage) | $1,200 – $1,800 | Goodman, Rheem, Carrier base models |
| Furnace unit (90 – 96% AFUE, two-stage/variable) | $2,400 – $4,200 | Lennox, Trane, Daikin, Bryant efficiency lines |
| Labor & installation | $1,500 – $2,600 | Includes removal, haul-away, gas line hookup, venting check |
| Thermostat (new smart or programmable) | $120 – $350 | Often included; confirm with your quote |
| Permit & inspection | $75 – $250 | City of Jacksonville mechanical permit |
| Ductwork modifications or sealing | $400 – $1,500 | Only if needed; common in older Riverside/Avondale and Arlington homes |
| Total installed cost | $3,800 – $7,900 | Median around $5,200 – $6,400 |
Two things drive cost more than anything else in Jacksonville. First, efficiency: an 80% AFUE furnace is the budget option but a 95%+ unit cuts your JEA gas bill noticeably during the cold snaps we get from December through February. Second, house age: if you’re in a 1950s-era home in Murray Hill or a 1970s build in Mandarin, the existing ductwork may need sealing or modification, and that’s where surprise line items show up. We always write ductwork findings into the quote before any work starts, so nothing appears on the invoice you didn’t approve in writing.
What Affects Furnace Replacement Pricing in Jacksonville
- Efficiency rating (AFUE). An 80% AFUE furnace costs less upfront but wastes 20 cents of every gas dollar. A 95% unit costs more now and returns the difference through lower JEA bills, especially if you plan to stay in the house more than five years.
- Home size and layout. A 1,100-square-foot bungalow in San Marco needs a 40,000 – 60,000 BTU furnace. A 2,600-square-foot two-story in Bartram Park needs 80,000 – 110,000 BTUs, possibly with zoning. Bigger units and zoning controls add cost.
- Ductwork condition. Jacksonville humidity and heat take a toll on ductwork, particularly in crawl spaces and attics. If inspection shows leaks, collapsed sections, or undersized returns, those fixes add to the total. We flag them in the written quote and explain whether they’re required or just recommended.
- Gas line and venting work. Some older homes in Riverside and Springfield still have original gas piping or vent configurations that need updating to current code. That’s a real cost line item, not a scare tactic.
- Brand selection. Carrier and Trane run a premium. Goodman and Rheem are solid mid-range choices. York and Bryant land between. The labor stays about the same; the difference is equipment cost and warranty length.
- Time of year. Jacksonville’s demand isn’t seasonal the way it is in Minnesota, but our brief winter dips in January and February do push install schedules. Scheduling replacement in spring or fall usually means faster availability and sometimes a manufacturer rebate.
Step-by-Step: What a Furnace Replacement Looks Like With Us
Here’s exactly how a furnace replacement works with Brandt HVAC Co Jacksonville, from first call to final walkthrough.
- You call (904) 456-0205 and speak to a live person. No phone tree, no voicemail. You tell us what you’re dealing with: furnace age, any symptoms, whether you’re replacing proactively or after a failure.
- We schedule a site visit and send your technician’s name and photo beforehand. Per our Threshold Verified standard, you’ll know who is coming, what they look like, and when to expect them. They’ll show a photo ID badge at the door.
- The technician evaluates your current system and home. This includes measuring your square footage, checking ductwork condition, confirming gas line sizing, and reviewing your current thermostat setup.
- You get a written price before any work starts. This is non-negotiable for us. The quote lists equipment, labor, permit, and any ductwork or venting work in line-item form. You review it. You agree to it. Then we proceed.
- Installation happens, typically in one day. A standard furnace changeout takes five to eight hours. We protect your floors, remove the old unit, install the new one, and run it through a full test cycle.
- We walk you through the system and warranty before we leave. You’ll know exactly what’s covered, for how long, and who to call if anything goes wrong.
How to Save on Furnace Replacement
Saving money on a furnace replacement doesn’t mean cutting corners. It means timing, efficiency math, and quotes you can actually compare. Here’s what works in Jacksonville specifically.
- Schedule off-season when possible. Spring and early fall are slower for HVAC companies in Jacksonville, which can mean manufacturer rebates and quicker install windows. If your furnace is nearing 15 years old, start planning before January arrives.
- Right-size the furnace for your home. Bigger is not better. An oversized furnace short-cycles, wastes gas, and dies younger. A correctly sized unit costs less and performs better. We calculate load based on your actual square footage and insulation, not a rule of thumb.
- Consider 80% AFUE if you’re on a tight budget and the furnace is in an unconditioned attic or garage. Higher-efficiency units save the most when they’re installed in conditioned spaces. In Jacksonville, many furnaces live in hot attics, which changes the condensing math for 90%+ units. We’ll tell you straight whether the extra efficiency pays off where your furnace actually sits.
- Ask about manufacturer rebates. Carrier, Trane, and Lennox run seasonal promotions through JEA and through their own dealer networks. These fluctuate, but they’re worth asking about when we quote.
- Get a written, itemized quote and compare like-for-like. The cheapest bid in Jacksonville often leaves out the permit or uses a lower-efficiency unit than you expected. Our Furnace Replacement in Jacksonville service always includes a line-item written price. No exceptions. If you’re comparing quotes, call us at (904) 456-0205 and we’ll walk through what a real number includes so you can compare honestly.
Furnace Replacement vs. Repair: When Does Replacing Actually Make Sense?
We tell customers this plainly: if your furnace is over 15 years old and the repair exceeds about 35 to 40 percent of the replacement cost, replace it. A $600 heat exchanger repair on a 16-year-old furnace is bad money. That $600 buys you a newer system’s down payment, not another year of reliability.
Furnace repairs in Jacksonville run $150 to $700 for most issues, per our current pricing. When a repair approaches that upper range on an older unit, replacement becomes the smarter financial move. Our home page shows the full picture of how we handle both repairs and replacements. If you’re unsure which road to take, we’ll give you the numbers for both and let you decide. No pressure, just arithmetic.
FAQs – Furnace Replacement Cost
How much does a furnace replacement cost in Jacksonville?
A furnace replacement in Jacksonville typically costs $3,800 to $7,900 installed, with most homeowners paying $5,200 to $6,400 for a mid-efficiency unit sized correctly for their home. That includes equipment, labor, haul-away, and permit. Call (904) 456-0205 for a free, written estimate specific to your house.
What’s the cheapest furnace replacement option in Jacksonville?
The most affordable route is an 80% AFUE single-stage furnace in the $3,800 to $4,800 range installed, usually a Goodman, Rheem, or York base model with no ductwork modifications required. That’s the right choice for some homes, especially smaller ones, but it’s not always the best long-term value. We’ll quote both ends of the range so you can choose with your own numbers in hand.
How long does furnace replacement take?
A standard furnace changeout takes five to eight hours, and most Jacksonville jobs finish in a single day. If ductwork modifications or gas line updates are needed, expect a second half-day. We confirm the timeline in writing before we start, and you’ll know your installer’s name and face before they arrive.
Is it cheaper to repair or replace my furnace?
If your furnace is under 12 years old and the repair is $150 to $700, repair usually wins. If it’s over 15 and the repair is more than $400 to $500, replacement usually makes more sense. We’ll show you the repair quote and the replacement quote side by side and let the math speak.
Can you install a furnace the same week I call?
Most Jan-Mar calls in Jacksonville get installed within 3 to 7 days, and spring and fall calls often fit in 1 to 3 days. We prioritize no-heat situations in winter. Call (904) 456-0205 and a live person will give you actual availability, not an automated estimate.
Do you offer free estimates for furnace replacement?
Yes. Every furnace replacement estimate from Brandt HVAC Co Jacksonville is free, written, and itemized before any work starts. Call (904) 456-0205 to schedule your site visit. You’ll get a number you can plan around, not a vague range.
Why Jacksonville Homeowners Choose Brandt HVAC Co for Furnace Replacement
Replacing a furnace means inviting someone into your home, often during a cold snap when you’re already uncomfortable. We get that. That’s why every Brandt technician is background-checked, uniformed, and introduced to you by name and photo before the appointment. They show a badge at the door, and if the person standing there is not the person you were told to expect, that visit is on us and we make it right. That’s the Threshold Verified standard, and it’s how we’ve operated since 2003 as part of the Threshold Group family.
Every replacement starts with a written price. You’ll see it before work begins, and the number on that paper is the number you pay. If something isn’t done right, the 365-Day Done Right Promise covers it: we return and make it right, no argument and no additional charge. That’s the guarantee behind the work, and it’s written, not implied.
Devin Marlowe leads our Jacksonville team, and the standard from day one has been simple: tell the customer exactly what it costs, exactly who’s coming, and exactly what happens if something goes wrong. That’s the certainty we sell, and it costs no more than the uncertainty you get elsewhere.
Call Brandt HVAC Co Jacksonville for a Free Furnace Replacement Estimate
If your furnace is nearing the end of its life or already failed, you need a real number and a real installer, not an online calculator that doesn’t know your house. Call (904) 456-0205 and you’ll speak to a live person, 24 hours a day, 7 days a week. We’ll schedule your free estimate, send you your technician’s name and photo before the visit, and give you a written price before any work begins. The furnace you need, the number you can plan around, and the peace of knowing exactly who’s walking through your door.
Pricing reflects the Jacksonville market as of 2026. Brandt HVAC Co Jacksonville offers free estimates – call (904) 456-0205.
Written by Devin Marlowe, Owner at Brandt HVAC Co Jacksonville, serving Jacksonville since 2003.
What Our Customers Say
"Thermostat was reading wrong and the upstairs never cooled. They moved the sensor and rebalanced the dampers. Even temps now."
- Kevin O."Drain line was clogging and causing a leak by the air handler. They cleared it and installed a float switch so it can't flood again."
- Nora T."Annual tune-up on the furnace. He cleaned the burners, tested the heat exchanger, and told me what was fine and what to watch. No scare tactics."
- Lorraine E.