Free Tool
Energy Savings Estimator
Your old windows have a monthly cost. It just hides inside your electric bill. Drag the sliders and see it.
Your Home
What New Windows Could Save You
Compared to single-pane windows on Southern California Edison rates
Per summer month
$53 – $89
Per summer (about 5 hot months)
$267 – $446
Over 10 summers
$2,673 – $4,455
Estimates use DOE and Energy Star modeling assumptions for our climate zone: your cooling load, your windows' share of that load, and current average rates. Real savings vary by home, shading, and weather. We'll give you a straight assessment of your specific situation at your free estimate, including when windows are NOT your biggest energy problem.