Independent and unbiased 2026 pricing data
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San Antonio, TX

Furnace Replacement Cost in San Antonio

Estimated furnace replacement cost in San Antonio

$2,800–$7,450

Roughly about 7% below the national average.

Lower labor costs keep prices below the national average.

Estimate your cost

Based on San Antonio, TX pricing.

Estimated cost range

$2,800–$7,450

BudgetTypicalPremium

An estimate for planning, not a quote. Get written quotes from local pros below.

Estimate, not a quote. Local prices vary by contractor and project. These are 2026 estimates for San Antonio, TX. Get written quotes from licensed San Antonio contractors before you budget.

Quote too high? DIY your furnace replacement

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A contractor quote is mostly labor. If that estimate felt steep, here is the exact gear to tackle this job yourself. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

Goodman 100,000 BTU 80% Gas Furnace
Goodman Goodman 100,000 BTU 80% Gas Furnace

$1,507.00

Single-stage upflow/horizontal furnace for whole-home heating.

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Aerostar 16x25x1 MERV 8 Filters (6 Pack)
Aerostar Aerostar 16x25x1 MERV 8 Filters (6 Pack)

$31.19

Six-pack of pleated filters to keep a new furnace running clean.

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Google Nest Smart Thermostat
Google Google Nest Smart Thermostat

$99.99

Programmable Wi-Fi thermostat to pair with the new furnace.

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First Alert Plug-In Carbon Monoxide Detector
First Alert First Alert Plug-In Carbon Monoxide Detector

$23.99

Plug-in CO alarm with battery backup, a must near gas appliances.

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What to know about furnace replacement in San Antonio

Heat plus humidity in San Antonio makes both cooling capacity and good dehumidification important when picking a system.

What affects furnace replacement cost in San Antonio

Beyond the local market, the same factors that drive furnace replacement cost everywhere apply in San Antonio:

  • Furnace type: electric, gas, or oil.
  • Efficiency rating (AFUE).
  • Furnace size for the home.
  • Like-for-like versus new ducts or fuel conversion.

Furnace Replacement cost by furnace type in San Antonio

These figures are adjusted for San Antonio pricing (about 0.93x the national average), so they reflect what local homeowners actually pay.

Estimated furnace replacement cost by furnace type in San Antonio (2026)
Furnace type Typical cost in San Antonio Notes
Electric $1,950 to $5,200 installed
Gas (mid-efficiency) $2,800 to $7,450 The baseline.
Gas (high-efficiency) $3,650 to $9,650 installed
Oil $3,350 to $8,950 installed

Furnace Replacement cost in San Antonio vs other metros

How a furnace replacement in San Antonio compares with nearby and similar-cost metros, using 2026 local estimates.

Metro Estimated furnace replacement cost vs national
San Antonio, TX $2,800–$7,450 about 7% below the national average
Houston, TX $2,900–$7,700 about 4% below the national average
Dallas, TX $2,950–$7,850 in line with the national average
Austin, TX $3,050–$8,150 in line with the national average
Fort Worth, TX $2,900–$7,750 about 3% below the national average
El Paso, TX $2,700–$7,200 about 10% below the national average

Frequently asked questions

How much does furnace replacement cost in San Antonio?

In San Antonio, TX, furnace replacement typically costs $2,800 to $7,450 in 2026 for a standard project, about 7% below the national average. Your exact price depends on size, materials, and scope.

Why does furnace replacement cost more or less in San Antonio?

Lower labor costs keep prices below the national average. Labor rates, permit costs, and local demand are the main reasons San Antonio prices differ from the national average.

Do I need a permit for furnace replacement in San Antonio?

Most furnace replacement projects require a permit. Requirements vary by city and Texas jurisdiction, so confirm with your local building department. A licensed contractor usually pulls the permit for you.

When is the best time of year for furnace replacement in San Antonio?

In San Antonio, aim for spring or fall. Summer heat, humidity, and afternoon storms can cause delays on exterior projects, and late summer is peak storm season.

Is furnace replacement cheaper outside San Antonio?

Sometimes. San Antonio runs about 7% below the national average. Nearby smaller towns with lower labor costs can come in cheaper, while denser urban areas often cost more. Always compare quotes from contractors who serve your specific area.

Furnace Replacement cost in other cities

See the national Furnace Replacement cost guide