Established in 1998, United Best Sheet Metal, Inc. (UBSM) is one of the most qualified architectural sheet metal companies serving all of Southern California. We are a certified SBE and WBE business. A woman-owned, we specialize in fabrication and installation at private projects, educational facilities and public works projects of all sizes.  We’re passionate about metal and it’s our purpose to use the talents we were given to serve others with integrity, craftsmanship, and dedication.  With over 4 years of successful projects of all sizes and over 13 years of combined sheet metal experience, UBSM is an insured, bondable, qualified subcontractor for any project.