Located in the foothills of the San Gabriel Mountains, Monrovia CA is a pleasant residential community that has been used by film crews for many projects including TV shows, movies, and commercials. Monrovia CA is one of the oldest general law cities in the LA area. It was incorporated in 1887. For many years orange orchards flourished here, but today the orchards have all been replaced by housing. One notable home in Monrovia CA is the Upton Sinclair House. When you have a plumbing problem at your home or business in Monrovia 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.