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Calculate the right HVAC size for your home in Houston, TX.
Design temperatures: 100°F summer / 45°F winter
Total conditioned living space
Cooling Load
58,667
BTU/hr
Heating Load
56,572
BTU/hr
Recommended Size
5 Ton
System Capacity
Est. Monthly Savings
$22
High-efficiency upgrade
Estimated System Cost
Equipment + professional installation
$17,500 - $32,500
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 77042
Average costs in Houston
Typical homes in 77042
Federal Energy Efficiency Tax Credit
federal incentive • Expires 2032-12-31
Up to $2,000
HVAC service calls in Houston, TX typically range from $100 to $250 for standard repairs. Emergency service is available 24/7 at approximately $225.
Yes, most hvac work in Houston County requires a permit. The average permit cost is $75. Our licensed contractors handle all permit requirements.
Our network of 35+ licensed contractors in the Houston area offers average response times of 65 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 100°F and winter design temp of 45°F in 77042, proper sizing is critical. Use our Manual J calculator above for an estimate.