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Calculate your potential savings from new energy-efficient windows in Dover, NH.
Climate: 7,199 HDD / 699 CDD
Standard window: 12-15 sq ft, Large picture window: 25-40 sq ft
U-Factor: 1.2
U-Factor: 0.3 • Energy Star Eligible
Annual Savings
$640
/year
Project Cost
$8,400
installed
Payback Period
13.1 years
to break even
25-Year Savings
$7,600
net lifetime
Environmental Impact
Reduce your carbon footprint by 4,205 lbs CO₂ per year — equivalent to planting 88 trees annually.
Federal Tax Credit Available
Energy Star windows qualify for up to $600 in federal tax credits (30% of cost, up to $600). This could reduce your payback period by 0.9 years.
Savings estimates based on U.S. Department of Energy calculations and local climate data. Actual savings vary based on home insulation, HVAC efficiency, and usage patterns. Professional energy audit recommended for accurate projections.
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ASHRAE design conditions for 19906
Average costs in Dover
Typical homes in 19906
Federal Energy Efficiency Tax Credit
federal incentive • Expires 2032-12-31
Up to $2,000
Windows service calls in Dover, NH typically range from $386 to $536 for standard repairs. Emergency service is available 24/7 at approximately $654.
Yes, most windows work in Dover County requires a permit. The average permit cost is $75. Our licensed contractors handle all permit requirements.
Our network of 39+ licensed contractors in the Dover area offers average response times of 64 minutes. Emergency service is available 24/7.