12 Ways To Winterize Your Home

11. Check the heating system: A heating system tune-up is always in order this time of year. This should include changing the filter in your furnace; having your ducts cleaned; checking and possibly increasing insulation over ductwork running through the attic or crawlspace; clearing debris and overhanging shrubbery from around outdoor heat pump equipment; and having faulty or inefficient thermostats repaired or replaced.