Owner and CSLB C-8 Licensee
Alonso Guerra
California Contractors State License Board CSLB C-8 Licensee
Alonso Guerra spent 19 years working on concrete crews before establishing Bristol Santa Ana Concrete in 2017. That background in heavy structural pours and residential flatwork established the company standard for preparing subgrades. In Santa Ana, where dense river sediment creates unstable ground, placing slabs directly over uncompacted soil invites structural cracking within seasons.
Data from the [USDA Web Soil Survey](https://websoilsurvey.nrcs.usda.gov/app/) records high clay fractions across central Orange County. When moisture fluctuates between dry summers and winter rains, these soils swell and contract. Slabs built without adequate crushed base or reinforcement shift out of level, opening wide fissures across garage floors and driveways.
To prevent soil movement from breaking finished concrete, Alonso Guerra enforces an excavation minimum of 4 inches for residential flatwork alongside steel rebar reinforcement. Operating with liability insurance on every job, the crew secures every perimeter before pouring high strength mixes designed to resist local ground heave.
“A concrete slab is only as durable as the dirt beneath it, which is why we dig down to firm ground and set our forms correctly before the ready mix truck arrives on site.”
