When insulating a single family home or a multi-unit home details are important! Our experienced installers begin every job by foaming around windows and doors, caulking the sole plate and basement rim joist and fire-stopping penetrations. Air leaks can increase the cost to heat and cool your home significantly. Accounting for as much as 40% of your energy costs, equivalent to leaving a window open 24 hours a day all year long. Removing existing old batt insulation from attics and walls and replacing it with cellulose insulation improves your homes energy efficiency and overall air quality immediately.