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License is active

Source: Contractors State License Board (CSLB)

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Licensed

Current and in good standing

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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

California licensing requirements →

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SIGMA CONSTRUCTION COMPANY

License Number: 1009864
State: California
Status: active
Business Type: Sole Owner
Address: 401 PALM AVENUE MILLBRAE, CA, 94030 San Mateo County
Phone: (650) 692 6929

License Dates

Issued

12/21/2015

Expires

12/31/2027

Expires in 21 months

CSLB Last Updated

11/19/2025

License Classifications

B General Building Contractor

Personnel & Officers

STATHAKOPOULOS GEORGE

Sole Owner

Active

Contractor Bond

Bonded

Amount: $25,000

Company: AMERICAN CONTRACTORS INDEMNITY COMPANY

Bond #100374025

Effective: 01/01/2023

Workers' Compensation

Has policy

Carrier: STATE COMPENSATION INSURANCE FUND

Policy #9222570

Effective: 12/12/2017

Expires: 12/12/2026

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)

additions alterations or repairs

1350 44th Av, 94122

adu construction in the 1st story level garage of a 2 story single family house consisting off 2 bedrooms and 1 bath.

$80,000

cancelled

otc alterations permit

30 Rockwood Ct, 94127

renovation of (e) 2 story residence including reconfiguration of internal stair, addition full bath @ 2nd fl; convertion of 1st fl storage area into habitable space & laundry room; new wood deck @ exi

$350,000

2026-01-15

issued

otc alterations permit

1350 44th Av, 94122

add 1 bedroom and bathroom in (e) garage . to include electrical and plumbing work. all work on the 1st floor.

$80,000

2025-10-21

issued

otc alterations permit

30 Rockwood Ct, 94127

in kind kitchen remodel, new cabinets and counter tops. in kind bathroom remodel. no structural changes.

$45,215

2025-09-29

issued

otc alterations permit

30 Rockwood Ct, 94127

replace 3 existing non permitted windows on east second story with 1 vinyl window. street facing in same opening.

$1,000

2025-09-29

issued

otc alterations permit

30 Rockwood Ct, 94127

remove existing siding on east and north second story and replace with plywood and new siding. approx 380 sqft of area. horizontal siding at the second story - hardi plank

$12,000

2025-09-22

issued

otc alterations permit

531 46th Av, 94121

replace 3 windows in-kind. replace 2 exterior doors in-kind located at back side of house. not visible from the street.

$2,500

2024-12-30

complete

otc alterations permit

1415 Waller St, 94117

unit #4: remove and replace cabinets and countertops w/ kitchen. remove and replace tiles and bathtub in bathroom.

$50,000

2024-09-24

complete

otc alterations permit

101 Castro St, 94114

apt #109: renovate kitchen in-kind- remove and replace cabinets and countertops. install new fixtures. renovate bathroom-remove and replace bathtub and tiles. new fixtures. remove and replace existing

$100,000

2024-08-05

complete

otc alterations permit

804 Stanyan St, 94117

remove and replace siding on back wall of garage that is detarned ~2o'x10'. remove and replace siding on right wall of garage that is deterned ~16'x10'.

$7,000

2024-06-17

complete

Showing 10 of 29 permits

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