The insulation of your home, along with the sealing of air leaks and drafts, can help you save up to 20 percent on heating and cooling costs each year.
A poorly insulated attic can decrease your home's energy efficiency, leading to increased utility bills. It can also boost humidity, causing mold growth, rot and animal infestations.
Angie's List, the nation's leading provider of consumer reviews, asked highly rated insulation companies to weigh in.
Angie's List Tips: Hiring an insulation company