Furnace/HVAC Replacement Cost in San Antonio (2026)
Average cost in San Antonio
US$6,500 — US$18,500
US$5 — US$8 per sq ft
Cost Breakdown
ItemizedCondenser, Furnace/Air Handler, and Evaporator Coil
55%
Installation, old system removal, and disposal
25%
Basic repairs, sealing, and plenum modifications
12%
R-454B refrigerant, electrical whip, and pad
6%
City of San Antonio mechanical permit fees
2%
Sales Tax at 6.25%
📋What's Included
ScopeTypically Includes
- Furnace or AC unit
- Thermostat
- Basic ductwork connections
- Refrigerant
- Labor & installation
- Old unit disposal
Typically Excludes
- Full ductwork replacement
- Zoning systems
- Smart home integration
- Permits & inspections
- Humidifier or air purifier
Based on a standard 2,000 sq ft home with existing ductwork.
🧮Estimate Your Cost
InteractiveEstimated Cost
US$5,152 — US$7,728
Based on 12 sources and market data for San Antonio. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
US$11,429
Today
US$12,400
Furnace/HVAC Replacement in San Antonio is ↑ 8.5% compared to roughly a year ago — about US$971 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top HVAC Replace Contractors in San Antonio
Verified providersAll About Air Conditioning & Heating LLC
1118 Waverly Ave, San Antonio, TX 78201, USA
294 reviews
ASC Heating & Air Conditioning
410 W Rhapsody Dr Suite C, San Antonio, TX 78216, USA
531 reviews
Shafer Services Plus
3800 San Pedro Ave, San Antonio, TX 78212, USA
2,294 reviews
Rosenberg Plumbing & Air
4335 Vance Jackson Rd Suite 505, San Antonio, TX 78230, USA
2,535 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
The 2026 price surge is primarily driven by the mandatory transition to R-454B (A2L) refrigerants, which required manufacturers to redesign systems with leak detection sensors and new safety components, adding roughly $1,000–$1,500 to equipment costs compared to previous R-410A models.
With San Antonio's average home size being approximately 2,175 sq ft, most residents require a 3.5 to 4-ton system. A 3.5-ton mid-efficiency system typically costs between $10,000 and $14,000 installed in 2026.
Yes, CPS Energy offers residential rebates for high-efficiency systems. In 2026, homeowners can receive between $225 and $1,200+ depending on the SEER2 rating, alongside federal Energy Star tax credits (25C) of up to $2,000 for qualifying heat pumps.
Standard estimates include basic plenum modifications and sealing. However, a full ductwork replacement in a typical San Antonio home can add $2,000 to $5,000 to the total project cost, which is often recommended if the existing ducts are over 15 years old or undersized for new high-efficiency blowers.
📊Our Methodology
How we collect dataAggregated from 12+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 4 days ago. Updates run weekly. All costs in USD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.