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Calculate the right HVAC size for your home in San Antonio, TX.
Design temperatures: 102°F summer / 42°F winter
Total conditioned living space
Cooling Load
62,629
BTU/hr
Heating Load
62,629
BTU/hr
Recommended Size
5+ Ton (Multi-zone recommended)
System Capacity
Est. Monthly Savings
$23
High-efficiency upgrade
Estimated System Cost
Equipment + professional installation
$19,250 - $35,750
Before rebates and incentives
This is a simplified estimate based on Manual J principles. An on-site assessment by a licensed HVAC contractor is required for accurate sizing. Factors like ductwork condition, air sealing, and specific window types affect the final recommendation.
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ASHRAE design conditions for 78236
Average costs in San Antonio
Typical homes in 78236
Federal Energy Efficiency Tax Credit
federal incentive • Expires 2032-12-31
Up to $2,000
HVAC service calls in San Antonio, TX typically range from $88 to $238 for standard repairs. Emergency service is available 24/7 at approximately $207.
Yes, most hvac work in San Antonio County requires a permit. The average permit cost is $75. Our licensed contractors handle all permit requirements.
Our network of 22+ licensed contractors in the San Antonio area offers average response times of 47 minutes. Emergency service is available 24/7.
HVAC sizing depends on your home's square footage, insulation, and local climate. With a summer design temperature of 102°F and winter design temp of 42°F in 78236, proper sizing is critical. Use our Manual J calculator above for an estimate.