Having your home insulated by a licensed HVAC company prevents drafts from entering your home in the winter. It also helps maintain the interior temperature of your home in the summer and prevents your air conditioner from overworking to cool your house. Insulation also has other benefits, including reducing outside noise. Contact an HVAC company to perform an energy audit of your home to discover the impact of sealing air leaks and installing insulation. The Energy Trust of Oregon provides a cash incentive of up to $0.50 per square foot to homeowners who have their house insulated.