Licensed Contractors in Williams, California

Williams has 16 licensed contractors registered with the California Contractors State License Board across 7 trade classifications. The most common specialties are Electrical Contractor (4), Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor (2), Tree Service (1). 7 contractors hold general contractor licenses (Class A or B).

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: February 20, 2026.

Contractors by Classification

General Contractors

B: General Building Contractor (6) A: General Engineering Contractor (1)

Specialty Contractors

Bennett Construction Active
License #291140 B Williams, CA Est. 1974
John Kolos Electric Active
License #627771 C-10 Williams, CA Est. 1991
William S Baptist Active
License #648107 B Williams, CA Est. 1992
Asa Charles Smith Active
License #668519 C-6 Williams, CA Est. 1993
Weston Buildings Inc Active
License #779990 B Williams, CA Est. 2000
John E Vanderpool Active
License #840327 B Williams, CA Est. 2004
Streamline Pipe Systems Active
License #925380 C-36 Williams, CA Est. 2008
Wright Construction Active
License #941760 B Williams, CA Est. 2010
Hector Cardenas Construction Active
License #994283 B Williams, CA Est. 2014
Valquez Electric Active
License #1010373 C-10 Williams, CA Est. 2016
Apxg Heating And Air Conditioning Active
License #1102032 C-20 Williams, CA Est. 2023
Aceves Tree Care Inc Active
License #1108935 D49 Williams, CA Est. 2023
Cromwell Electric Active
License #1117603 C-10 Williams, CA Est. 2024
Colusa Mechanical Systems Inc Active
License #1120532 A Williams, CA Est. 2024
Thorough Electrical Services Suspended
License #533179 C-10 Williams, CA Est. 1988
Mr Heating & Air Conditioning Suspended
License #1069756 C-20 Williams, CA Est. 2020

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