Sunray Insulation provides award winning insulation solutions in Genesee County and Flint area, as well as in Saginaw and Oakland Counties. Nu-Wool premium cellulose insulation. Tripolymer foam. Insulate walls, attic, crawlspace, basement, foundation additions & new construction. FREE estimates. Lower utility bills all year around. We can handle large and small jobs, both commercial and residential. Let Sunray Insulation show you where your dollars are escaping through your walls.