William Judson Post
William Judson Post is an active, licensed contractor operating in Arcadia, CA. Operating under a California contractor license established in 1977. They hold C-7 Low Voltage Systems Contractor and C-10 Electrical Contractor licenses. They currently maintain an active contractor bond and a workers' compensation exemption. No disciplinary actions have been recorded against this license.
License Information
- License Number
- 343642
- Status
- Active
- Classification(s)
- C-7: Low Voltage Systems Contractor, C-10: Electrical Contractor
- Tenure
- Licensed since 1977 (48 years)
- Issue Date
- September 23, 1977
- Expiration Date
- October 31, 2026
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – AMERICAN CONTRACTORS INDEMNITY COMPANY
- Workers’ Compensation
- Exempt
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 47 E SAINT JOSEPH STREET
- City
- Arcadia, CA
- ZIP Code
- 91006
- Phone
- (626) 446-7159
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About These License Types
C-7: Low Voltage Systems Contractor
Installs, services, and maintains communication and low voltage systems not exceeding 91 volts, including telephone, sound, cable television, closed-circuit video, satellite dish antennas, instrumentation, temperature controls, and low voltage landscape lighting.
Not authorized: Does not include low voltage fire alarm systems or systems exceeding 91 volts (see C-10).
C-10: Electrical Contractor
Places, installs, erects, or connects electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells, or any part thereof which generate, transmit, transform, or utilize electrical energy.
Not authorized: Electricians working under a C-10 must be certified per CA Labor Code.
Licensing Resources
What does a workers' comp exemption mean?
Deposit and payment rules for California contracts
Home improvement contract requirements
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License data sourced from the California Contractors State License Board. Last data update: April 05, 2026.