Founder and Concrete Finisher
Reuben Castillo
Founder and Concrete Finisher, California CSLB C-8 Contractor
Before founding Arrowhead San Bernardino Concrete in 2017, Reuben Castillo worked for 19 years across commercial and residential pours throughout the Inland Empire. That background demonstrated how unstable base preparation causes early failure in flatwork. Following guidelines from the [Portland Cement Association](https://www.cement.org/), our team compacts crushed stone under every driveway.
San Bernardino sits on coarse alluvial wash deposits that shift when moisture levels fluctuate across San Bernardino County. The [California Contractors State License Board](https://www.cslb.ca.gov/) requires contractors holding a CSLB C-8 classification to pour structural concrete, which is why Reuben Castillo sets forms four inches deep over crushed gravel base.
With owner-occupied homes at 46.8% in San Bernardino, long-term property improvements need real accountability. Arrowhead San Bernardino Concrete carries liability insurance on every job and secures permits through the local building division so property owners never face code compliance disputes.
“Every slab we pour across San Bernardino gets measured on site, formed to full depth, and backed by a written guarantee because our concrete must outlast summer heat.”
