A free, no-signup-required estimate of annual energy savings, break-even year, and 25-year net return from upgrading your windows. Most windows pay back slowly — we'll tell you when they don't pay back at all, and when comfort is the real reason.
We don't sell windows. We tell you whether your numbers actually work — and when they don't, what to do instead. Built by Benefitra, a licensed brokerage that also runs marketing for specialty trades.
Square footage and window count drive both the energy savings ceiling and the install cost.
Windows save more in cold climates with inefficient HVAC. A heat pump in Tucson saves a fraction of what electric resistance heat saves in Vermont.
The bigger the gap between current and target, the bigger the savings. Triple-pane only pays off in very cold climates and very long stays.
Updates live as you change inputs above. National-midpoint energy costs and heuristic window-loss fractions per Energy Star and DOE guidance.
New windows cut cold-window drafts, reduce condensation, and quiet outside noise — comfort gains that don't show up on the utility bill. Avoided CO₂: — tons over 25 yrs.
National midpoints get you a directional answer. A real audit measures your specific window U-factors, air leakage, and orientation — and looks at whether attic insulation or air-sealing would beat the windows for the same dollar. We'll send an independent energy professional. Free, no obligation.
We'll never share your info. You'll hear from a licensed Benefitra advisor within 1 business day. Free audits subject to service-area availability.
How this estimate works. Savings estimates use national-midpoint HVAC costs by DOE climate zone and heuristic window-loss fractions per Energy Star and DOE guidance. Install costs are 2026 national midpoints for double-pane modern ($700/window) and triple-pane ($1,300/window) including labor. Actual savings depend on your home's air-tightness, insulation level, window orientation, glazing area as a fraction of wall area, and local energy prices. The calculator is for informational purposes only; a Manual J-style load calculation from a certified energy auditor gives results specific to your home. Benefitra is a licensed insurance brokerage; we do not sell windows or perform installations directly — our network includes independent inspectors and contractors with referral relationships.