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Calculate the right HVAC size for your home in San Francisco, CA.
Design temperatures: 101°F summer / 51°F winter
Total conditioned living space
Cooling Load
60,648
BTU/hr
Heating Load
43,918
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 94121
Average costs in San Francisco
Typical homes in 94121
Federal Energy Efficiency Tax Credit
federal incentive • Expires 2032-12-31
Up to $2,000
HVAC service calls in San Francisco, CA typically range from $141 to $291 for standard repairs. Emergency service is available 24/7 at approximately $287.
Yes, most hvac work in San Francisco County requires a permit. The average permit cost is $150. Our licensed contractors handle all permit requirements.
Our network of 31+ licensed contractors in the San Francisco area offers average response times of 56 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 101°F and winter design temp of 51°F in 94121, proper sizing is critical. Use our Manual J calculator above for an estimate.