State
Mass Save · Heat Loan
0% financing up to $50k for ENERGY STAR window upgrades. Stackable with utility rebates below.
$50,0000% APR · 7 yrs
Federal, state, and utility programs — kept current against IRS, ENERGY STAR, and DSIRE. No PDFs to dig through.
0% financing up to $50k for ENERGY STAR window upgrades. Stackable with utility rebates below.
Per-window incentive when a HEAT-certified contractor installs U-factor ≤ 0.22. Pre-approval required.
Expired 2025-12-31 for new installs. Carry-forward applies if you placed in service before that date.
Owner-occupied homes < 4 units. Must combine with insulation upgrade.