When you select Capitol Siding Company you are choosing the best. With 60 years of experience and over 22,000 satisfied customers, we are the largest and oldest dealer of a complete line of brand-name vinyl siding, windows and doors, aluminum seamless gutters and roofing products, in Central Massachusetts. And that's not all. Our licensed, factory-trained, professional crews are fully insured through workmen's compensation and liability protection. Capitol Siding Company is a proud, 40-year member of the Auburn and Worcester Chamber of Commerce, and a 42-year affiliate of the Worcester Better Business Bureau.