Founded in 1978 by owner and longtime Des Plaines resident Lenny Thorne, this community-based business has an A+ rating with the Better Business Bureau and is a proud member of the Chamber of Commerce. Why Not specializes in aluminum and vinyl siding, seamless gutters, soffit/fascia, roofing and windows. The owner guarantees 100% customer satisfaction and provides free estimates. The company is highly involved in the community and associated with several community projects, and its many years of expert work have made it well known in the area.