Clear
INTERNATIONAL WATERPROOFING & ROOFING
License
- Status
- CLEAR
- First issued
- August 18, 1997
- Expires
- August 31, 2027
- Entity
- Corporation
- Address of record
- 1616 16TH STREET SUITE 200, San Francisco, CA 94103
- Phone of record
- (415) 575 0912
Contractor bond
- Surety
- PHILADELPHIA INDEMNITY INSURANCE COMPANY
- Bond number
- PB10163406127
- Amount
- $25,000
- Effective
- November 21, 2025
Workers’ compensation
- Carrier
- STATE COMPENSATION INSURANCE FUND
- Policy number
- 9073063
- Effective
- October 1, 2018
- Expires
- October 1, 2026
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 75 licensed roofing contractors in San Francisco.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| SANKOWICH CHARLES ANTHONY | Responsible Managing Officer | March 1, 1999 | Current |
| SANKOWICH STEPHEN ANTHONY | Chief Executive Officer/President | December 20, 2017 | Current |
| SCOTT JACK MURRAY | Responsible Managing Officer | September 24, 2018 | Current |
| SANKOWICH ANTOINETTE MADELYN | Chief Executive Officer/President | August 18, 1997 | June 30, 2017 |
| SANKOWICH CHARLES ANTHONY | Officer | September 30, 1998 | March 1, 1999 |
| SANKOWICH CHARLES ANTHONY | Responsible Managing Officer | October 12, 1999 | January 1, 2004 |
| SANKOWICH NANCY | Officer | August 18, 1997 | September 30, 1998 |
| SUHRKE ROGER PAUL | Responsible Managing Employee | August 18, 1997 | February 28, 1999 |
Is this your license?
Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.
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.