About Us Our Work Safety Insurance & Bonding Contact Us News... Commonwealth reaches Elite Status... Marriott Long Wharf receives Project of the Year Award Sustainability Award Winner... ConstructSecure Platinum Award Recipient... Partner In Quality Status... Project of the Year Award Runner Up... Commonwealth Building Systems, LLC We are a specialty contractor focusing on exterior building envelope waterproofing installation, repair and maintenance. Our partnership is comprised of a group of professionals with over 70 years of combined experience with waterproofing, architectural sheet metal, roofing and air/vapor barriers on existing and new construction in the high-end commercial, industrial and institutional markets of Eastern Massachusetts, Southern New Hampshire and Rhode Island. Mission Statement "Provide professional, state-of-the-art exterior building system installation, repair and maintenance services of the highest quality to building owners, real estate and facilities management firms, general contractors and building envelope consultants while cultivating a rewarding, positive and safe work environment for our employees." Home About Us Our Work Safety Insurance & Bonding Contact Us © 2010 Commonwealth Building Systems, LLC | 17 Rockview Way | Rockland, MA 02370 | 781.792.0032