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Calculate the right HVAC size for your home in Lewiston, ME.
Design temperatures: 85°F summer / -5°F winter
Total conditioned living space
Cooling Load
28,953
BTU/hr
Heating Load
222,936
BTU/hr
Recommended Size
2.5 Ton
System Capacity
Est. Monthly Savings
$11
High-efficiency upgrade
Estimated System Cost
Equipment + professional installation
$8,750 - $16,250
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 00002
Average costs in Lewiston
Typical homes in 00002
Federal Energy Efficiency Tax Credit
federal incentive • Expires 2032-12-31
Up to $2,000
HVAC service calls in Lewiston, ME typically range from $85 to $235 for standard repairs. Emergency service is available 24/7 at approximately $203.
Yes, most hvac work in Lewiston County requires a permit. The average permit cost is $75. Our licensed contractors handle all permit requirements.
Our network of 15+ licensed contractors in the Lewiston area offers average response times of 45 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 85°F and winter design temp of -5°F in 00002, proper sizing is critical. Use our Manual J calculator above for an estimate.