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SANDSTONE ENVIRONMENTAL ENGINEERING INC

CLEAR California contractor license #878348

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License overview
878348
CLEAR
2006-05-24
2028-07-31
OAKLEY, CA 94561
***-***-**** · Click to see numberHide phone number(510) 334 7932
Classifications
  • A — CSLB classification
  • ASB — CSLB classification
  • B — CSLB classification
  • C-12 — CSLB classification
  • C-21 — CSLB classification
  • C-22 — CSLB classification
  • HAZ — CSLB classification
Bond & workers’ compensation
WESTERN SURETY COMPANY
66985704
Workers' Compensation Insurance
2027-07-26
Associated personnel
******** · Click to see associated personnelHide associated personnel
  • CASTILLO MARTIN · Responsible Managing Officer/Chief Executive Officer/President · C-21
  • CASTILLO MARTIN · Responsible Managing Officer/Chief Executive Officer/President · C-12
  • CASTILLO MARTIN · Responsible Managing Officer/Chief Executive Officer/President · A
  • CASTILLO MARTIN · Responsible Managing Officer/Chief Executive Officer/President · HAZ
  • CASTILLO MARTIN · Responsible Managing Officer/Chief Executive Officer/President · ASB
  • CASTILLO MARTIN · Responsible Managing Officer/Chief Executive Officer/President · C-22
  • CASTILLO MARTIN · Responsible Managing Officer/Chief Executive Officer/President · B

Source record last updated: 2026-08-25 00:00:00.