West Covina CA was incorporated in 1923 as part of a local citizens’ effort to keep a neighboring city from building a sewage treatment plant in the area. The project was stopped and locals continued to grow oranges and walnuts here throughout the 1930s and 40s. Between 1950 and 1960, West Covina CA became one of the fastest growing cities in the country. In recent years development has turned to the commercial sector, with projects like the Plaza at West Covina and the West Covina Sportsplex. When you have a plumbing problem at your home or business in West Covina CA, you deserve the best plumbing contractor in the business. At Preferred Plumbing and Rooter Service, we take pride in offering fast, affordable, reliable plumbing services along with courteous customer service. Our plumbers are exceptionally knowledgeable and experienced. We are happy to provide honest information about your plumbing needs and repair options, as well as transparent pricing. Call us any time 24/7 for service.