Cleaning Service in San Jose, CA GSG General Services is your one stop shop for all your cleaning service needs. Our cleaning company provides quality cleaning with flexible operating hours to meet the diverse needs for all customers. For GSG General Services, no job is too big or too small. We are a cleaning service who put our customers first. This is evident through our company's same free estimates/quotes, and high quality service. We make it convenient for you and respond in a timely man