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UNITED MECHANICAL

CLEAR California contractor license #828335

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License overview
828335
CLEAR
2003-12-11
2027-12-31
SAN JOSE, CA 95131
***-***-**** · Click to see numberHide phone number(408) 232 9000
Classifications
  • B — CSLB classification
  • C-20 — Warm-Air Heating, Ventilating and Air-Conditioning
  • C-36 — Plumbing
  • C-38 — CSLB classification
  • C-4 — CSLB classification
  • C-43 — CSLB classification
Bond & workers’ compensation
ARCH INSURANCE COMPANY
SU1143918
Workers' Compensation Insurance
2026-11-01
Associated personnel
******** · Click to see associated personnelHide associated personnel
  • BERTOLAMI LEONARD CEASERE · Responsible Managing Officer/Chief Executive Officer/President · C-36
  • BERTOLAMI LEONARD CEASERE · Responsible Managing Officer/Chief Executive Officer/President · B
  • BERTOLAMI LEONARD CEASERE · Responsible Managing Officer/Chief Executive Officer/President · C-43
  • BERTOLAMI LEONARD CEASERE · Responsible Managing Officer/Chief Executive Officer/President · C-20
  • HADINGER WILLIAM JOSEPH · Responsible Managing Officer · C-4
  • HADINGER WILLIAM JOSEPH · Responsible Managing Officer · C-38

Source record last updated: 2025-12-12 00:00:00.