Founded in 1986, Alliance Roofing Company is one of the leading roofing and waterproofing contractors in Northern California. It works in partners with general contractors, tenants, plumbers, mechanical contractors, property managers and private owners. Its projects include various professional sport s arenas, grandiose casinos, classified government headquarters and mansions. Alliance Roofing Company also provides services for rooftops, gutters, downspouts, waterways and drainage systems. Alliance Roofing Company is located in San Jose, Calif.