Interactive calculator

Insulation & air sealing ROI — in plain numbers

Estimate how much air sealing and attic insulation could cut your heating and cooling spend. Then compare that against quotes to see payback ranges.

Focus on heating + cooling

Air sealing and insulation mostly reduce space-conditioning loads. We isolate heating + cooling spend instead of your full bill.

Range, not a single number

We show conservative vs optimistic savings because results depend heavily on how leaky your home is today.

Works without an audit

If you don’t have blower-door numbers, start with a ballpark. Tighten assumptions once you get quotes or an audit.