New Mastic Asphalt Ltd is located in Bolton, Greater Manchester. We have over 25 years of experience, and can come to your site, wherever you are in the UK. If you are a homeowner looking to add a garden path, or a property developer needing a durable, clean surface quickly, we are here for you. We make a superb base for roof gardens. If you want your building to blend into the environment, but remain waterproof, we have the surface you need. We'll lay it over curved or sloped surfaces, accomodating any architecture or design.