License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
Insured
Workers' comp coverage on file
Clean record
No complaints or disciplinary actions
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HERLING CONSTRUCTION
- License Number
- 831004
- State
- California
- Status
- active
- Business Type
- Sole Owner
- Address
- 4168 23RD STREET SAN FRANCISCO, CA, 94114 San Francisco County
- Phone
- (415) 377 3674
License Dates
Issued
01/15/2004
Expires
01/31/2028
Expires in 22 months
CSLB Last Updated
12/18/2025
License Classifications
Personnel & Officers
HAMMATT JOHN
Sole Owner
Contractor Bond
Amount: $25,000
Company: WESTERN SURETY COMPANY
Bond #67319744
Effective: 01/14/2025
Workers' Compensation
Carrier: STATE COMPENSATION INSURANCE FUND
Policy #9382102
Effective: 06/11/2025
Expires: 06/11/2026
CSLB designation: Workers' Compensation Insurance
Complaints & Disciplinary History
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
638 Castro St, 94114
rev. to 2017 1130 5144 - remove non-structural wall and doors.
$1
otc alterations permit
4168 23rd St, 94114
replace rotted casings and sill with same molding - same size and location at front to match (e). replace rotted facia on gable at front - same size and location to match (e). replace (6) double hung
$15,000
2025-12-05
otc alterations permit
229 Bonview St, 94110
revision to permit 202206247014. modify guardrail detail.
$1
2024-11-19
otc alterations permit
1524 Guerrero St, 94110
revision to 202302152014: interior stair layout change. bath layout change. kitchen layout change. added door at exit passageway. no exterior work, no plumbing fixture count change
$1
2024-09-13
otc alterations permit
1524 Guerrero St, 94110
interior remodel of lower 2 floors, including kitchen and baths, new stair connecting 1/f and 2/f. new windows on all 3 levels, new hvac and electrical as required, 2 new skylights at 3/f.
$394,000
2023-03-31
otc alterations permit
229 Bonview St, 94110
convert 575 sf of garage to conditioned space & replace int stair. replace foundation. demolish existing deck stair to upper deck. replace windows & doors @ rear. 3 new skylilghts. replace in-kind les
$150,000
2022-08-30
otc alterations permit
159 Commonwealth Av, 94118
remove existing stucco & sheathing at south side driveway. install insulation new sheathing new stucco same existing. install 3 new sets of wood window sashes same existing. south side driveway instal
$18,000
2022-03-17
otc alterations permit
2626 Union St, 94123
existing top fl. apartment - renovate (e) kitchen, alter ceiling at hall, bedroom, and kitchen
$30,000
2022-02-02
otc alterations permit
159 Commonwealth Av, 94118
replace two sets of window sashes to existing windows due to rot, same size, same location, wooden windows. not street facing.
$1,500
2021-11-30
otc alterations permit
452 Alvarado St, 94114
interior work- widen & raise ht on 3 doorways-provide (n) posts & headers. remove 2 windows at rear facade & replace w/ 1 single larger window. (n) window not street visable.
$4,000
2021-01-11
Showing 10 of 73 permits
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