Alton and Company, Inc.is a licensed, bonded and fully insured roofing contractor in Santa Rosa, California specializing in all applications for commercial roofing, industrial roofing, and high-end residential roofing. Our goal is to provide both a superior customer experience and tremendous value for our customers. Always quick attention and ready to help! We purchased a new home in 2002 with a concrete shingle and flat built up roof with multiple skylights and penetrations as well as 5 chimneys.