Calculate energy savings and ROI for upgrading windows and doors in Illinois Climate Zone 5. Includes ENERGY STAR rebates, program discounts, and comfort improvements.
Your Windows & Doors
Average home has 10-15 windows
Include sliding glass doors
Current Windows
Current Doors
Your Windows & Doors Upgrade Analysis
Windows to Replace
0 windows
$0 material cost
Doors to Replace
0 doors
$0 material cost
Installation Labor
$0
Professional installation
Total Project Cost
$0
Before incentives
Incentives & Net Cost
Program Discount (30%)
-$0
Max $600/yr windows, $500/door
Utility Rebates
-$0
ENERGY STAR products only
Your Net Cost
$0
After all incentives
Annual Energy Savings
Season
Current
New
Savings
Heating (Winter)
$0
$0
$0
Cooling (Summer)
$0
$0
$0
Total Annual Savings
-
$0
25-Year Investment Analysis
Payback Period
0
years
25-Year Total Savings
$0
with 3% inflation
Return on Investment
0%
over 25 years
Comfort Score
0/10
improvement rating
Performance Comparison
Current U-Factor
0
Higher = More Heat Loss
→
→
New U-Factor
0
Lower = Better Insulation
0% Better Insulation Performance
📊 Key Benefits for Illinois Homeowners
Climate Zone 5: ENERGY STAR requires U-Factor ≤ 0.27 for maximum efficiency
Winter Savings: Reduce heat loss through windows by up to 50%
Summer Comfort: Low-E coatings block 70% of solar heat gain
Draft Elimination: Modern air sealing reduces infiltration by 75%
Noise Reduction: Triple-pane windows reduce outside noise by 50%
UV Protection: Low-E glass blocks 95% of harmful UV rays
Home Value: New windows increase resale value by 70% of cost
💡 Illinois Tips:
Prioritize north-facing windows for maximum heat loss reduction
Consider Low-E coatings for south-facing windows to reduce summer heat
Minimum 5 windows required for ComEd/Ameren rebates
Program discount requires ENERGY STAR certification
Spring and fall are best times for installation in Illinois
<div style="background: #fef2f2; border: 2px solid #dc2626; padding: 20px; border-radius: 8px; margin: 40px 0; text-align: center;">
<p style="font-size: 16px; font-weight: bold; font-style: italic; color: #dc2626; margin-bottom: 15px;">
⚠️ IMPORTANT DISCLAIMER: Projected figures are based on public program information, utility assumptions, and market conditions and are subject to change. Do NOT rely on these projections alone. For updated Illinois Shines, rebate, ownership, and PPA information, please book a free consultation.
</p>
<a href="https://api.leadconnectorhq.com/widget/booking/3aEEpkkNI3zvQcz2Lk4c"
target="_blank"
rel="noopener"
style="display: inline-block; background: #dc2626; color: white; padding: 12px 24px; border-radius: 6px; text-decoration: none; font-weight: bold; font-size: 16px;">
Book Free Professional Consultation →
</a>
</div>