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License is active

Source: Contractors State License Board (CSLB)

Expires in 6 months — verify renewal before long contracts

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Licensed

Current and in good standing

✓

Bonded

$25,000 surety bond

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Insured

Workers' comp coverage on file

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Clean record

No complaints or disciplinary actions

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POLY - ON ELECTRICAL

DBA: POLY - ON SECURITY SYSTEM INC

Owner: POLY-ON SECURITY SYSTEM INC DBA POLY-ON ELECTRICAL

License Number: 1044620
State: California
Status: active
Business Type: Corporation
Address: P O BOX 22010 SAN FRANCISCO, CA, 94122 San Francisco County
Phone: (415) 760 6464

License Dates

Issued

09/20/2018

Expires

09/30/2026

Expires in 6 months — verify renewal before long contracts

CSLB Last Updated

07/18/2025

License Classifications

C10 C10

Personnel & Officers

TSANG BILLY YAU HO

Responsible Managing Officer/Chief Executive Officer/President

C10

Active

TSANG TINA WONG

Officer

Active

Contractor Bond

Bonded

Amount: $25,000

Company: AMERICAN CONTRACTORS INDEMNITY COMPANY

Bond #100405312

Effective: 01/01/2023

Workers' Compensation

Has policy

Carrier: STATE COMPENSATION INSURANCE FUND

Policy #1548833

Effective: 08/01/2018

Expires: 08/01/2026

CSLB designation: Workers' Compensation Insurance

Complaints & Disciplinary History

No disciplinary actions on file

This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.

Building Permits

Source: LA City Open Data (LADBS)

otc alterations permit

278 States St, 94114

upgrade the (e) fire alarm system by replacing it with addressable fire alarm unit wireless communicator next to facu addressable smoke detector manual pullstation 3 led horn strobe 18 low frequency h

$27,722

2026-02-10

complete

otc alterations permit

2906 San Bruno Av, 94134

voluntary new fa system per current code: (1) addressable fire alarm unit (1) wireless communicator next to facu (2) addressable smoke detector (1) addressable manual pull station (2) addressable moni

$31,829

2026-01-27

complete

otc alterations permit

2955 Sacramento St, 94115

install a new dedicated fa system (sprinkler monitoring) per nfpa72-2025 section 23.8.5.5.1 with 1 fire alarm control unit, 1 wireless commercial fire communicator, 1 smoke detector above the facu, 1

$13,286

2026-01-09

complete

otc alterations permit

609 Moultrie St, 94110

install a new dedicated systm (sprinkler monitoring) per nfpa72-2022 section 23.8.5.5.1 fire alarm control unit (1) wireless commercial fire communicator (1) smoke detector above the facu (1) manual p

$8,655

2025-12-22

complete

otc alterations permit

2461 Ofarrell St, 94115

install a new dedicated fa system (fire monitoring) per nfpa 72-2022 section 23.8.5.5.1 with (1) fire alarm control unit (1) wireless commercial fire communicator (1) smoke detector above the facu (1)

$12,050

2025-12-22

issued

otc alterations permit

937 Kansas St, 94107

install a new dedicated systm (sprinkler monitoring) per nfpa72-2022n section 23.8.5.5.1 fire alarm control unit (1) wireless commercial fire communicator 91) smoke detector above the facu (1) manual

$12,050

2025-12-22

complete

otc alterations permit

1424 Jones St, 94108

upgrade e) fire alarm system by replacing it w/ 1 addressable fire alaram unit, 1 wireless communicator next to facu, 5 addressable smoke detectors, 5 addressable manual pull stations, 4 led horn stro

$16,000

2025-10-30

issued

otc alterations permit

149 Mangels Av, 94131

install a new dedicated system (sprinkler monitoring) per nfpa 72-2022 section 23.8.5.5.1 with one fire alarm control unit, one wireless commercial fire communicator, one smoke detector above the facu

$11,330

2025-10-30

issued

otc alterations permit

1600 California St, 94109

upgrade (e) fire alarm system. replace with (n) fa system per current code (1) addressable fire alarm unit 1 wireless communicator next to facu 23 addressable smoke detector 1 addressable heat detecto

$58,000

2025-10-08

complete

otc alterations permit

1358 Dolores St, 94110

install a new dedicated fa system (sprinkler monitoring) per nfpa 72-2022 section 23.6.5.5.1 with (1) fire alarm control unit, (1) wireless commercial fire communicator, (1) smoke detector above the f

$5,200

2025-09-25

complete

Showing 10 of 176 permits

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Data sourced from official state licensing board records. Always confirm critical information directly with the state board.