Modesto work sits in wine production and ag processing, so most refrigeration roles are plant-side cold storage for canning, nut processing, and winery operations rather than storefront grocery service. California requires a C-38 contractor license for commercial and industrial refrigeration work, and you need EPA 608 to handle refrigerant anywhere. Statewide pay averages around $70,000, above the national salary ranking by state.
Plants and warehouses hire helpers and apprentices onto industrial systems, and pairing a helper role with your 608 is a faster door than chasing your C-38 first. New to the trade? Start with how to become a commercial refrigeration technician.