Blown Insulation Blown cellulose insulation is one of the most cost effective ways to lower your energy bill. Foam Insulation Spray foam insulation is the best barriers you can use to seal your home from the outside elements. About Us Polar Bear Insulation is a fully insured home improvement contractor, with 28 years of experience and a trained and caring crew. Insulation is the most effective way to improve the energy efficiency of a home. Insulation of the building envelope helps keep heat in during the winter, but lets heat out during summer to improve comfort and save energy.