Through the rolling hills of Silicon Valley, San Jose is one of California's largest cities. Aside from its unique historical architecture from earlier centuries, the city is also a major technological powerhouse, with a slew of major tech firms such as Apple, IBM, and Google calling it home. San Jose, which has about a million people, maintains its economic flags flying high while it expands. As the city's population rises, so does the demand for homes and properties, resulting in increased plumbing needs.