Streamline Waterproofing & Caulking serves New England's largest commercial contractors and builders. Caulking, Waterproofing, Air & Vapor Barrier, Masonry Cleaning. We do it all. We work closely with our commercial and industrial clients to find the most cost-effective product and application procedures to maintain or restore the integrity of your building. Our experience and expertise in commercial waterproofing have made us one of the most trusted waterproofing companies in all of New England.