About

Guaranteed Plumbing and its sister company, East Bay Gas Lines, provides its customers with the highest level of quality and customer satisfaction. We are a full-service plumbing and gas line company that is licensed, bonded and insured and fully-versed in city codes, as well as a preferred vendor with the Town of Danville Building Department.

Serving Danville and Alamo, as well as Contra Costa and Alameda Counties and the greater East Bay Area, Guaranteed Plumbing and East Bay Gas Lines works with individual homeowners, general contractors, restaurants, businesses, retailers, property managers, real estate agents, and government services. Whether simple or complex, standard or custom, Guaranteed Plumbing and East Bay Gas Lines can successfully manage any plumbing or gas line endeavors.