Clear

A1 SUN INC

License #891743BerkeleyCorporationLicensed since February 28, 2007

License

Status
CLEAR
First issued
February 28, 2007
Expires
February 28, 2027
Entity
Corporation
Address of record
675 CEDAR ST, Berkeley, CA 94710
Phone of record
(510) 526 5715

Contractor bond

Surety
ATLANTIC SPECIALTY INSURANCE COMPANY
Bond number
800231476
Amount
$25,000
Effective
April 5, 2026

Workers’ compensation

Carrier
STATE COMPENSATION INSURANCE FUND
Policy number
9390937
Effective
November 20, 2025
Expires
November 20, 2026

Are they licensed for your job?

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Licensed to perform

A contractor may only contract for work within their classifications. See all 6 licensed solar contractors in Berkeley.

People on this license

NameTitleSinceThrough
FRANGQUIST JOEL BENJAMINResponsible Managing EmployeeMay 27, 2026Current
GIUSTINO KATHLEEN LYNOfficerFebruary 28, 2007Current
GIUSTINO LAWRENCE JUDEResponsible Managing OfficerMay 26, 2026Current
LY REUBEN BChief Executive Officer/PresidentAugust 21, 2026Current
COOPER PAULDeceasedMarch 3, 2021March 3, 2021
COOPER PAULResponsible Managing OfficerFebruary 28, 2007March 3, 2021
GIUSTINO BENJAMIN LAWRENCEResponsible Managing OfficerApril 21, 2022February 21, 2026
GIUSTINO BENJAMIN LAWRENCEDeceasedFebruary 21, 2026February 21, 2026
GIUSTINO LAWRENCE JUDEChief Executive Officer/PresidentFebruary 28, 2007May 26, 2026

Verified status badge

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A1 SUN INC — California contractor license #891743 status, verified against CSLB records
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.