Attic insulation inspection — check current R-value
Draft-proof windows with weatherstripping and caulk
Door draft stoppers — install on exterior doors
Basement rim joist insulation — seal and insulate band joists
Pipe insulation — wrap exposed pipes in unheated areas
Garage door weatherstripping — bottom seal and perimeter
Smart thermostat schedule — optimize for winter heating
HVAC filter check and furnace inspection schedule
Attic air sealing — seal gaps around penetrations
Water heater insulation and pipe wrap — winter energy savings
Window shrink-film insulation kit — install on drafty windows
Chimney inspection and cleaning — schedule before first fire