How Windows and HVAC Affect Your Energy Bill

Where your heating and cooling money goes, and the upgrades that pay back fastest.

Heating and cooling make up the largest share of most home energy bills. Old windows and poorly maintained systems are often the biggest leaks.

Single-pane windows lose heat quickly. Upgrading to Low-E double glazing reduces drafts and keeps rooms at a steadier temperature.

Pair better windows with a serviced HVAC system and a smart thermostat, and many homeowners see savings within the first season.