Verified licenseActive

Expert Tree Service

Orinda, CA · Contra Costa County · Well drilling and pump installation

  • Pump Installation
  • Pump Repair
  • Well Abandonment
  • Well Drilling
  • Well Repair
Call (925) 254-8733Website

License record

Verified against state records
License number
621402
License type
Well drilling and pump installation
Status
Active
Expires
June 30, 2027
Last verified
September 29, 2026

Check this license yourself on the official California lookup.

Services on the state record

Holds an active California C-57 Well Drilling contractor license (CSLB license 621402, corporation, first issued 1991, current through 2027-06-30). The C-57 classification covers drilling, casing, cleaning, repairing and destroying water wells and installing and repairing well pumps. Also licensed as: A general engineering. No well completion reports filed with the Department of Water Resources since 2016 under this license number (pump work and repairs are not reported, and reports filed under a driller's individual name may not match).

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