Sonora, CA Contractor directory
Excavation contractors in Sonora, CA
11 verified excavation contractors serving Sonora.
Sonora excavation guide
Ground conditions, permits & project requirements in Sonora
Hiring for excavation or concrete work in Sonora? This local research covers the soil, permit, and site conditions a Sonora contractor will work around — so you can compare bids with the same facts they use.
Skip to 11 contractorsPermits & requirements
Call USANorth / California 811 before you dig — the state requires at least 2 working days of notice.
Frost depth & footing depth
In California, footings typically need to extend below the frost line, which is around 18 inches here. A local contractor will confirm the code requirement for your site.
Contractor licensing in California
Excavation and grading work in California typically requires a state license (CA C-12 (Earthwork and Paving)).
Regulator: California Contractors State License Board.
Verified local listings
Excavation & concrete contractors serving Sonora
11 verified listings
Mike McConnell Construction
demolition, driveways, excavation, grading, land clearing, septic systems
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Area-specific FAQ
Do I need to call before digging in Sonora?
Yes. You should contact USANorth / California 811 at least 2 working days before any digging so underground lines can be marked.
How deep do footings need to be in California?
In California, footings typically need to extend below the frost line, which is around 18 inches here. A local contractor will confirm the code requirement for your site.