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Expert Tree ServiceLicensed

Licensed water well contractor based in Orinda, Contra Costa County, CA

License details

License number	621402
License type	Well Drilling Contractor (C-57)
License status	Active, CSLB license CLEAR
License expires	June 30, 2027
Based in	Orinda, Contra Costa County, California 94563

"Based in" is the city and county of the address on the business's license record.

What this license covers

Drilling / construction: licensed to bore, case, complete, and plug water wells.

How to verify this license

We publish the license details exactly as they appear in the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #621402 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: California Contractors State License Board (CSLB), last checked 2026-08-17. Look it up at the issuing agency.

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See every listing based in Contra Costa County or in Orinda.