Sierra Commercial Plumbing, Inc., established in 1995, is a full service commercial plumbing and mechanical contractor. Our expertise encompasses many facets of mechanical and plumbing design, installation and service. A properly installed mechanical or plumbing system can significantly reduce costs while still providing a superior indoor environment. Sierra provides exceptional job quality and performance.


El Encanto Hotel, Santa Barbara
Skirball Guerin Pavilion, Los Angeles
Pasadena City College, Pasadena
Glassell Park Apartments, Los Angeles
Kaiser MOB Pasadena, Pasadena
City of Hope, Antelope Valley MOB
Anderson Munger YMCA, Los Angeles

Wet Mechanical
Firestopping Division
Wastewater Division
Site Utilities Piping