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AfterHow Much Does Furnace Replacement Cost in Austin?
Furnace replacement in Austin typically costs between $4,200 and $8,900 for a standard efficiency unit in a 1,500 to 2,500 square foot home, with most homeowners landing around $5,800. High-efficiency models (90%+ AFUE) run $6,500 to $11,500 installed. The final number depends on unit size, efficiency rating, ductwork condition, and whether you need any electrical or gas line updates.
We’ll walk you through every line item so you know exactly what you’re paying for before you ever sign anything. That’s how Brandt HVAC Co Austin works: a written price before any work starts, on every single job, with no exceptions.
Key Takeaways: Austin Furnace Replacement Prices at a Glance
- Standard efficiency furnace (80% AFUE): $4,200 – $6,800 installed
- High efficiency furnace (90%+ AFUE): $6,500 – $11,500 installed
- Furnace only, no ductwork changes: $3,800 – $6,200
- Full system with new ductwork: $8,000 – $15,000+
- Most common Austin price point: around $5,800 for a mid-range 80% unit in a typical 2,000 sq ft home
- Installation takes one day in most single-family homes
Furnace Replacement Cost Breakdown (2026)
Austin’s housing stock runs older than people expect. Homes built in the 1970s through 1990s in neighborhoods like Allandale, Crestview, and Windsor Park often still have original or second-generation furnaces running at 60-70% efficiency. When those fail, the replacement isn’t just a swap. It’s a reconfiguration.
Here’s what you’re actually paying for, line by line:
| Cost Component | Typical Range in Austin | Notes |
|---|---|---|
| Furnace unit (80% AFUE, 60k-80k BTU) | $2,100 – $3,400 | Goodman, Rheem, and Bryant tend to sit at the lower end; Carrier and Lennox at the higher end |
| Furnace unit (90%+ AFUE, condensing) | $3,200 – $5,800 | Requires condensate drain line; some Austin attics need added slope for proper drainage |
| Labor and installation | $1,200 – $2,400 | One full day for a standard swap; two days if relocating the unit or running new venting |
| Permit and inspection | $150 – $450 | City of Austin mechanical permit required; varies by scope |
| Thermostat (new digital or smart) | $40 – $350 | Basic digital starts under $50; smart thermostats like Ecobee or Nest run higher |
| Ductwork repair or replacement | $1,800 – $6,000 | Partial repairs on the low end; full replacement in pier-and-beam homes on the high end |
| Gas line updates | $300 – $1,200 | Older homes in Hyde Park and Bouldin Creek sometimes need larger diameter lines for higher-BTU units |
| Electrical / disconnect work | $200 – $600 | Code requires a service disconnect within sight of the furnace |
So the spread is real, but it isn’t random. A 1,200 square foot ranch in Brentwood with good ducts and an existing 80% furnace needs a simpler job than a 2,800 square foot two-story in Westlake with a 30-year-old system and collapsing ductboard. The house tells you the price.
What Affects Furnace Replacement Pricing in Austin
- Home age and construction style. Austin’s pre-1960s homes in areas like Travis Heights and Hyde Park often have floor furnaces or wall heaters rather than central systems. Converting to central heat means adding ductwork, which can add $3,000 to $6,000 to the total.
- Attic vs. closet vs. basement install. Most Austin homes put the furnace in the attic or a hall closet. Attic installs in July and August are harder labor, and cramped closets in 1990s subdivisions like Milwood or Anderson Mill can require custom plenum work.
- Efficiency rating. An 80% AFUE furnace costs less upfront but burns more gas. A 96% condensing unit costs $2,000 to $3,500 more installed but drops your January gas bill noticeably. Austin’s mild winters mean the payback period stretches longer than in Minneapolis, so we tell customers to weigh comfort and rebates over fuel savings alone.
- Permit requirements. The City of Austin requires a mechanical permit for furnace replacement. Any licensed contractor handles this as part of the job. If someone quotes you a replacement without mentioning permits, that’s a red flag.
- Refrigerant or AC tie-in work. If your furnace shares a blower with your AC coil, which is standard in central systems, the replacement often means reconnecting or replacing the coil cabinet. That can add $400 to $1,100 depending on coil condition.
- Brand selection. Goodman and Rheem units typically run $400 to $800 less than comparable Carrier or Lennox models. All the major brands have reliable lines; the installation quality matters more than the logo on the cabinet. Brandt HVAC Co Austin services Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard, and we’ll give you straight answers about which unit fits your house and budget.
Standard vs. High-Efficiency: What Should Austin Homeowners Choose?
We get asked this a lot, and our answer surprises people: for most Austin homes, a mid-range 80% furnace is the right call. Here’s the math in plain language.
Austin’s heating season runs roughly late November through early March, and even then, many days top 60 degrees. A 96% furnace saves you about 16 cents per dollar of gas compared to an 80% unit. On a $400 winter gas bill season, that’s roughly $65 a year in savings. A $3,000 premium means over 40 years to break even on fuel alone.
But there are cases where high efficiency makes sense. If you’re in a larger home in Steiner Ranch or Lakeway with multiple zones. If you have respiratory concerns and want the sealed combustion that condensing furnaces offer. If you can stack utility rebates from Austin Energy and a manufacturer rebate. We’ll do that math with you before you commit. No pressure, just numbers.
How to Save on Furnace Replacement
Furnace replacement is a big purchase, and you should never feel rushed into it. Here are practical ways Austin homeowners keep costs down without cutting corners on safety or quality.
Replace in spring or fall. The HVAC industry’s slow seasons are March through May and September through November. Contractors are more flexible on scheduling, and manufacturers occasionally run rebates during shoulder seasons. In August, when your AC dies, everyone’s busy. In February, when your furnace dies, same story. If you can plan ahead, you’ll pay less.
Get three written quotes, but compare line items, not just totals. One company’s $5,500 quote might include a permit and a new thermostat. Another company’s $5,200 quote might exclude both. Ask for a written breakdown. At Brandt HVAC Co Austin, every quote includes a written price before any work starts. Always. No exceptions.
Check for rebates. Austin Energy offers efficiency rebates on qualifying furnace and heat pump installations, and many manufacturers run seasonal promotions. These change yearly, so ask your contractor what’s currently available for your specific unit.
Don’t replace ductwork unless you need it. Some companies push full duct replacement on every job. In truth, many Austin homes have duct systems with 10 to 20 years of service life left. A good inspection will tell you what’s actually failing. If someone quotes you $8,000 for ducts without showing you the damage, get a second look.
Ask about the guarantee before you sign. A furnace replacement should include a written guarantee covering parts and labor for at least one year, with the manufacturer covering the heat exchanger and other major components for 10 to 20 years. Brandt HVAC Co Austin includes a written guarantee on every replacement, and if anything fails within the guarantee period, we return at no charge under the 365-Day Done Right Promise. That’s a free second visit if the repair fails. No argument, no additional charge.
The best way to get an accurate number for your specific home is to call us at (361) 326-1553. Estimates are free, and the price we quote is the price you pay.
How Furnace Replacement Works: Step-by-Step
Here’s what to expect when you replace your furnace with Brandt HVAC Co Austin. This is the same process we’ve used since 2003, and it hasn’t changed because it works.
- You call and speak to a live person. 24 hours a day, 7 days a week, including holidays. No voicemail, no callback queue, no automated phone tree. You tell us what’s happening, and we schedule a visit.
- We send you your technician’s name and photo before arrival. You’ll know exactly who is walking up your driveway. Our technicians are background-checked, identity-verified, and uniformed. When they get to your door, they show a photo ID badge. If anyone shows up who you weren’t told to expect, that visit is on us under the Threshold Verified standard.
- Your technician inspects the current system. They’ll measure your home’s square footage, check the existing ductwork, inspect the gas line, and assess the electrical setup. They’ll ask about your comfort concerns, any cold spots, and your budget range.
- You receive a written quote. The price includes the unit, labor, permit, thermostat, and any required line or duct modifications. No work starts until you see and agree to the cost in writing.
- We install the furnace. Most replacements take one full day. The crew protects your floors, removes the old unit, installs the new furnace, connects gas and electrical, and tests everything.
- We walk you through the new system. You’ll see how the thermostat works, where the filter goes, and how to shut the system down in an emergency. We don’t leave until you’re comfortable.
- You get a written guarantee. Every replacement includes a written warranty covering parts and labor for 365 days, supported by the manufacturer’s warranty on major components. If anything fails in the guarantee period, we return free of charge.
FAQs – Furnace Replacement Cost
How much does it cost to replace a furnace in Austin, TX?
Most Austin homeowners pay between $4,200 and $8,900 for a complete furnace replacement, with the typical job landing around $5,800. A basic 80% AFUE unit in a smaller home can run as low as $3,800, while a high-efficiency 96% unit in a larger home with ductwork modifications can exceed $11,500. Call (361) 326-1553 for a free, no-obligation written estimate specific to your home.
Is it cheaper to repair or replace a furnace?
As a rule of thumb: if the repair cost exceeds 30% to 40% of the replacement cost, replacement makes more financial sense. A $400 ignitor replacement on a 12-year-old furnace is a repair. A $1,800 heat exchanger replacement on a 20-year-old furnace is often the first sign you should replace instead. We’ll give you a straight recommendation either way, with actual numbers, not a sales pitch.
How long does furnace replacement take?
A standard furnace replacement in Austin takes one full day, usually 6 to 8 hours. Jobs that require ductwork replacement, gas line upgrades, or converting from a floor furnace to a central system can take 2 to 3 days. We’ll tell you the timeline before we start, and it’s part of your written quote.
What’s the best furnace brand for Austin homes?
There’s no single best brand, but the most common choices in Austin are Carrier, Trane, Lennox, Goodman, Rheem, and Bryant. Goodman and Rheem offer the best value at the lower end. Carrier and Trane command a premium for brand recognition and quieter operation. The installation quality matters more than the brand. A Goodman installed to spec will outperform a Carrier installed poorly every time. Brandt HVAC Co Austin services all major brands and we’ll recommend what fits your home and budget.
Do I need a permit to replace a furnace in Austin?
Yes. The City of Austin requires a mechanical permit for furnace replacement, and the permit typically costs $150 to $450 depending on the scope of work. Your contractor should handle this as part of the job and include the cost in the written quote. If a contractor offers to skip the permit to save money, walk away. Unpermitted work can create problems when you sell your home and may not be covered by insurance if something goes wrong.
Can you replace my furnace today?
In some cases, yes. We stock common furnace models in Austin and can often complete a same-day or next-day replacement for standard jobs, especially during fall and spring. During peak winter weeks, scheduling may stretch 2 to 4 days. Call (361) 326-1553 and a live person will tell you exactly what’s possible for your situation.
Why Austin Homeowners Choose Brandt HVAC Co Austin
Furnace replacement isn’t just a transaction. You’re letting someone into your home, often when you’re alone or with young children. That’s a real decision, and we treat it that way.
Since 2003, Brandt HVAC has operated as part of the Threshold Group family of home-service companies. The name Brandt comes from an old word for a firebrand, which feels fitting for the work of keeping a home warm. More important than the name is what we do before anyone steps through your door: we tell you who’s coming, by name and photo, before the visit. The technician shows a photo ID badge when they arrive. They’re background-checked and identity-verified under the Threshold Verified standard. If someone shows up who you weren’t told to expect, that visit is on us and we make it right.
Every job starts with a written price. Every repair and replacement includes a written guarantee. If it fails within 365 days, we return at no charge under the 365-Day Done Right Promise. And when you call, a live person answers. 24 hours a day, 7 days a week, nights and weekends and holidays included.
Devin Marlowe and the home team at Brandt HVAC Co Austin handle every Furnace Replacement in Austin with the same standard: certain price, certain identity, certain outcome. If you want to know exactly what your furnace replacement will cost and exactly who will walk through your door, call (361) 326-1553 for a free estimate.
Pricing reflects the Austin market as of 2026. Brandt HVAC Co Austin offers free estimates – call (361) 326-1553.
Written by Devin Marlowe, Owner at Brandt HVAC Co Austin, serving Austin since 2003.
What Our Customers Say
"Good work on the heat pump. The first visit missed the real problem, but he came back and found the reversing valve issue. No charge for the return trip."
- Priscilla N."Furnace short cycled all winter. He found a dirty flame sensor and cleaned it. Twenty minutes and a small bill."
- George Q."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.