Furnace Replacement in San Antonio, TX

Furnace Replacement in San Antonio, TX

A furnace replacement in San Antonio typically runs between $4,800 and $9,200 for a mid-efficiency unit in a standard single-family home, with high-efficiency models and larger square footage pushing the cost higher. Most replacements take one full day, and you’ll have heat running by the evening. At Brandt HVAC Co San Antonio, every replacement starts with a written price before we touch anything, and our technicians arrive background-checked, uniformed, and introduced to you by name and photo before they ever pull into your driveway. Call (361) 470-8872 for a free estimate.

If your furnace is limping through another winter or you’re weighing repair against replacement, you’re in the right place. As part of our Heating & Furnace in San Antonio services, we handle furnace replacement with straight numbers and no surprises. Devin Marlowe, our owner, has built this team around one idea: you should know exactly who is walking through your door and exactly what the work will cost. That’s the Brandt standard, and it’s non-negotiable.

The name Brandt comes from an old word for a firebrand, a burning stick used to start a fire. It’s a fitting name for the work of keeping a San Antonio home warm through January cold snaps and February ice storms. We take that work seriously, and we do it the same way every time: certain price, certain identity, certain outcome.

Key Takeaways

• Furnace replacement in San Antonio typically costs $4,800 – $9,200 depending on home size, furnace type, and efficiency rating.
• Most replacements are completed in one day. You’ll have heat by evening.
• Brandt HVAC Co San Antonio provides a written price before any work starts, always.
• Every technician is background-checked and arrives with photo ID, introduced by name before the visit.
• Live people answer our phones 24/7 at (361) 470-8872.

When You Need Furnace Replacement

Not every furnace problem means full replacement. But some do, and knowing the difference saves you money. Here’s what tells us a replacement might be the right call in San Antonio:

• Your furnace is 15 years old or older. Most furnaces in San Antonio last 15 to 20 years with regular maintenance. Once you pass year 15, repairs start adding up faster than the unit holds value. The heat exchanger, the core component, is often the first to go.
• Repairs are costing you every season. If you’ve spent $500 or more on furnace repairs in the last two years and the unit is aging, replacement usually makes more sense than the next fix. We’ll give you the repair quote and the replacement quote side by side so you can decide with real numbers.
• Your heat exchanger is cracked. This is the one we treat as urgent. A cracked heat exchanger can leak carbon monoxide into your home. If our inspection finds a crack, replacement is the safe answer. We do not patch cracked heat exchangers, and no reputable company should.
• Rooms heat unevenly, or the furnace short-cycles. Furnaces that turn on and off rapidly in San Antonio homes often have failing components or undersized ductwork. When the blower motor and burners are working against aging parts, you’re paying for energy you’re not feeling.
• Your energy bills climb while your comfort drops. A furnace running at 60% efficiency costs more to operate than a new 90%+ efficiency unit. The difference shows up on your CPS Energy bill every winter.
• The flame burns yellow instead of blue. A yellow or flickering burner flame means incomplete combustion, which can produce carbon monoxide. If you notice this, call us right away at (361) 470-8872, and we’ll inspect before doing anything else.

Our Furnace Replacement Process

Here’s exactly how furnace replacement works with Brandt HVAC Co San Antonio, step by step:

1. You call (361) 470-8872 and talk to a live person. No phone trees, no voicemail, no callbacks. We answer 24/7, including weekends and holidays.
2. We schedule a furnace assessment at a time that works for you. Before our technician arrives, you’ll receive their name and photo by text or email. That’s the Threshold Verified standard, part of the Threshold Group family of home-service companies, established in 2003.
3. The technician arrives in uniform and shows photo ID at the door. If anyone shows up who you were not told to expect, that visit is on us. We make it right.
4. We measure your home and evaluate your current system. Square footage, ductwork, insulation, window count, and your existing furnace brand. We service all major residential brands including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard.
5. We give you a written price before any work starts. No exceptions. You’ll see the full replacement cost, the furnace model options, and the efficiency ratings in writing. If the price changes during the work, which is rare, you’ll approve the change in writing first.
6. We install your new furnace, usually in one day. Our team handles the full job: removal of the old unit, installation of the new furnace, connection to existing ductwork, gas line verification, and thermostat setup. We test everything before we leave.

Furnace Replacement Pricing in San Antonio

Here’s what furnace replacement costs in San Antonio, with real numbers:

Furnace Type	Efficiency (AFUE)	Typical San Antonio Price Range
Single-stage, mid-efficiency	80% AFUE	$4,800 – $6,200
Two-stage, high-efficiency	90 – 95% AFUE	$6,400 – $8,100
Modulating, top-efficiency	96 – 98% AFUE	$8,300 – $9,200+
Heat pump hybrid (furnace + heat pump)	Varies	$9,500 – $13,500

What moves the price in San Antonio specifically? Home size is the biggest factor. A 1,200-square-foot home in Alamo Heights needs a 40,000 to 60,000 BTU furnace. A 3,000-square-foot home in Stone Oak might need a 100,000 BTU unit or larger. Ductwork condition matters too. Older homes in Monte Vista or Terrell Hills sometimes have leaking or undersized ducts, and we’ll flag that before touching the furnace. Efficiency rating is the third lever: an 80% AFUE unit costs less up front, a 95%+ unit saves you money on every CPS Energy bill for the next 15 years.

We also install furnaces from Rheem, York, Daikin, and Bryant. Each has different price points and warranties. We’ll show you line-by-line options and let you choose, with our honest take on what fits your home and budget.

Every Brandt HVAC Co San Antonio replacement includes a written guarantee. If the installed furnace fails within the guarantee period, we return at no charge. That’s the 365-Day Done Right Promise. No argument, no extra fee, no fine print games.

Why San Antonio Homeowners Choose Brandt HVAC Co San Antonio

Most HVAC companies in San Antonio compete on price. We compete on certainty. Here’s what that looks like in practice:

• You know who’s coming before they arrive. Name, photo, background check status, and exactly when to expect them. If you’re home alone or have young children with you, this matters. We built the Threshold Verified standard for exactly that reason.
• Written price before anything starts. No estimates that balloon. No “we’ll see when we get in there.” You see the full number in writing, and you approve it before we order parts or pick up a tool.
• Live person on the phone, 24/7. Furnace goes out at 11 p.m. in January. You call, a human answers. Nights, weekends, holidays. That’s the standard.
• No-pressure recommendations. We’ll tell you honestly when repair makes more sense than replacement. If your furnace has five good years left, we’ll say so.

Will a New Furnace Actually Save You Money in San Antonio?

Short answer: yes, if your current unit is older than 12 years and running below 80% AFUE. San Antonio winters aren’t brutal by Minnesota standards, but we do get extended stretches in the 30s and 40s. When your furnace runs 10 to 14 hours a day during those weeks, the efficiency difference adds up.

An 80% AFUE furnace wastes 20 cents of every dollar you spend on gas. A 96% AFUE unit wastes 4 cents. On a $150 monthly gas bill during winter, that’s roughly $24 a month saved, or $96 to $120 per cold season. Over the 15 to 18 year life of the unit, that’s real money. We’ll calculate the payback period for your specific home during the estimate, not with generic math, but with your actual usage numbers.

FAQs – Furnace Replacement

How much does furnace replacement cost in San Antonio?

Furnace replacement in San Antonio typically costs $4,800 to $9,200, with mid-efficiency units at the low end and modulating high-efficiency units at the top end. Home size, ductwork condition, and brand choice move the price. Call (361) 470-8872 for an exact written quote, free of charge.

Is it cheaper to repair or replace my furnace in San Antonio?

If your furnace is under 10 years old and the repair is under $500, repair usually wins. If it’s over 15 years old and the repair is $800 or more, replacement typically makes better financial sense. We’ll give you both quotes in writing and let you decide, with our straight recommendation included.

How long does furnace replacement take?

Most furnace replacements in San Antonio take one full day. Our team arrives in the morning, removes the old unit, installs the new furnace, tests it thoroughly, and you have heat by the evening. Larger homes or ductwork repairs can add a second day, and we’ll tell you that in the written estimate before any work starts.

Can you replace my furnace in San Antonio today?

We answer calls 24/7 at (361) 470-8872. In most cases, we can get a technician to your home the same day for assessment. Full replacement scheduling depends on equipment availability and your home’s needs, but we aim for the earliest possible installation date and we’ll put it in writing.

What brands of furnaces do you install in San Antonio?

We install Rheem, York, Daikin, and Bryant furnaces, along with other major residential brands. Each brand has different warranty lengths and efficiency options. We’ll show you the choices, compare them honestly, and recommend what fits your home and budget, not what’s easiest for us to sell.

Start With a Free Furnace Replacement Estimate

If your furnace is showing its age, don’t wait for the next cold front to find out. Call us at (361) 470-8872. You’ll talk to a live person, we’ll schedule an assessment at a time that works for you, and you’ll receive your technician’s name and photo before they arrive. Every Brandt HVAC Co San Antonio visit includes a written price before any work starts, a written guarantee on every installation, and the 365-Day Done Right Promise backing it all.

Written by Devin Marlowe, Owner at Brandt HVAC Co San Antonio, serving San Antonio.