Williamson Construction Co Inc
Report verdict
Licensed & active (expires 2027-02-28) · No board discipline flag found in covered sources · 54 permits on file (Los Angeles)
88/100 HomeProFax Score — public-record factors only, not a rating of workmanship. How the score works Full report
The state board is the authority. A flag is a prompt to read the board record, not a verdict. Verify license status with the issuing board before you hire. See methodology and disclaimer & corrections.
What this report checks
Score breakdown
| Factor | Points | Why |
|---|---|---|
| License status | 35/35 | Active license on file with a state board |
| Discipline & legal flags | 20/20 | No disciplinary flag on board record |
| Permit history | 20/20 | 54 permits on file |
| Reviews (BBB + HomeProFax) | 13/25 | No BBB rating on file and no approved HomeProFax reviews yet (neutral). External ratings are linked below, not stored |
A simple, transparent sum of public-record factors. How the score works. Not a rating of workmanship.
Source data as of: Report rebuilt from source files on 2026-10-19 · CSLB bond/workers' comp as of 2026-10-14 · most recent permit on file: 2023-04-28.
What we checked
| License | Checked | CA Corporation #976074 · active |
| Bond | Checked | $25,000 with AMERICAN CONTRACTORS INDEMNITY COMPANY · as of 2026-10-14 |
| Workers' comp | Checked | Workers' Compensation Insurance (EVEREST PREMIER INSURANCE COMPANY) · as of 2026-10-14 |
| Years licensed | Checked | Licensed since 2012 |
| Business registration | Not available in CA | State business registry not loaded yet |
| Permits | Checked | 54 permits on record |
| Discipline | Checked | none on record |
| OSHA | Not checked yet | OSHA records not checked yet |
| Reviews & outside links | Not checked yet | No review lookup run yet |
| Contractor-provided | Not checked yet | Nothing provided by the contractor yet |
Public records as of their source dates. Board status is shown as reported by the board. Not a guarantee. Ask the contractor for their verified HomeProFax report.
Licenses
Licensed since 2012 (earliest original issue date on these state license records; not a business start date)
| License # | Type | Status | Issued | Expires | Source |
|---|---|---|---|---|---|
| CA 976074 | Corporation (B) Workers' comp: Workers' Compensation Insurance (EVEREST PREMIER INSURANCE COMPANY); Contractor bond: $25000 (AMERICAN CONTRACTORS INDEMNITY COMPANY) | clear | 2012-08-24 | 2027-02-28 | State board |
Bond & workers' comp
| Contractor bond | $25,000 · AMERICAN CONTRACTORS INDEMNITY COMPANY · effective 2023-01-01 |
|---|---|
| Workers' comp | Workers' Compensation Insurance · EVEREST PREMIER INSURANCE COMPANY · effective 2026-07-17 · expires 2027-07-17 |
Source: CSLB Public Data Portal (License Master), as of 2026-10-14. Verify current bond and insurance with CSLB and the insurer before you hire.
Building permits
| Date | Permit | Type | Address | Value |
|---|---|---|---|---|
| 2023-04-28 | 20016-30001-30694 | Bldg-Alter/Repair - Commercial | 11645 WILSHIRE BLVD | $501 |
| 2023-01-09 | 23016-10000-00489 | Bldg-Alter/Repair - Commercial | 18133 VENTURA BLVD | $20,000 |
| 2021-12-21 | 20016-30000-30694 | Bldg-Alter/Repair - Commercial | 11645 WILSHIRE BLVD | $105,000 |
| 2021-08-19 | 21016-20000-19142 | Bldg-Alter/Repair - Commercial | 11333 SEPULVEDA BLVD | $100,000 |
| 2021-04-08 | 21042-90000-06736 | Plumbing - Commercial | 8635 3RD ST | — |
| 2021-03-03 | 19016-10002-24478 | Bldg-Alter/Repair - Commercial | 3201 6TH ST | $501 |
| 2021-02-01 | 18016-10002-11723 | Bldg-Alter/Repair - Commercial | 881 ALMA REAL DR | $301 |
| 2020-12-22 | 20044-90000-12381 | HVAC - Commercial | 8635 3RD ST | — |
| 2020-12-22 | 20042-90000-24099 | Plumbing - Commercial | 8635 3RD ST | — |
| 2020-10-30 | 20016-10000-16909 | Bldg-Alter/Repair - Commercial | 8635 3RD ST | $136,255 |
| 2020-09-30 | 19016-20000-37830 | Bldg-Alter/Repair - Commercial | 8723 ALDEN DR | $20,000 |
| 2020-09-23 | 20016-10000-10847 | Bldg-Alter/Repair - Commercial | 6801 PARK TER | $58,000 |
| 2020-03-03 | 19016-10001-24478 | Bldg-Alter/Repair - Commercial | 3201 6TH ST | $501 |
| 2020-02-13 | 20042-20000-03736 | Plumbing - Commercial | 21730 VENTURA BLVD | — |
| 2020-02-13 | 20044-20000-01942 | HVAC - Commercial | 21730 VENTURA BLVD | — |
| 2020-02-13 | 19041-10000-42260 | Electrical - Commercial | 21730 VENTURA BLVD | — |
| 2020-02-13 | 19016-20000-35381 | Bldg-Alter/Repair - Commercial | 21730 VENTURA BLVD | $100,000 |
| 2019-12-19 | 19042-20000-31038 | Plumbing - Commercial | 17010 CHATSWORTH ST | — |
| 2019-12-19 | 19044-20000-15578 | HVAC - Commercial | 17010 CHATSWORTH ST | — |
| 2019-12-19 | 19041-20000-30077 | Electrical - Commercial | 17010 CHATSWORTH ST | — |
| 2019-12-19 | 19016-20000-24055 | Bldg-Alter/Repair - Commercial | 17010 CHATSWORTH ST | $41,700 |
| 2019-12-13 | 19042-10001-25042 | Plumbing - Commercial | 11795 OLYMPIC BLVD | — |
| 2019-10-09 | 19016-10000-24478 | Bldg-Alter/Repair - Commercial | 3201 6TH ST | $38,900 |
| 2019-10-09 | 19044-10000-12580 | HVAC - Commercial | 11795 OLYMPIC BLVD | — |
| 2019-10-09 | 19042-10000-25102 | Plumbing - Commercial | 3724 CRENSHAW BLVD | — |
| 2019-10-09 | 19041-10000-30741 | Electrical - Commercial | 3724 CRENSHAW BLVD | — |
| 2019-10-09 | 19042-10000-25042 | Plumbing - Commercial | 11795 OLYMPIC BLVD | — |
| 2019-10-09 | 19041-10000-30728 | Electrical - Commercial | 11795 OLYMPIC BLVD | — |
| 2019-10-09 | 19016-10000-24484 | Bldg-Alter/Repair - Commercial | 11795 OLYMPIC BLVD | $40,100 |
| 2019-10-09 | 19016-10000-24472 | Bldg-Alter/Repair - Commercial | 3724 CRENSHAW BLVD | $40,000 |
| 2019-10-09 | 19044-10000-12597 | HVAC - Commercial | 3724 CRENSHAW BLVD | — |
| 2019-10-09 | 19042-10000-25101 | Plumbing - Commercial | 3201 6TH ST | — |
| 2019-10-09 | 19041-10000-30747 | Electrical - Commercial | 3201 6TH ST | — |
| 2019-10-09 | 19044-10000-12598 | HVAC - Commercial | 3201 6TH ST | — |
| 2019-09-24 | 19041-20000-24826 | Electrical - Commercial | 10174 MASON AVE | — |
| 2019-08-23 | 19042-20000-15421 | Plumbing - Commercial | 10174 MASON AVE | — |
| 2019-08-23 | 19044-20000-10435 | HVAC - Commercial | 10174 MASON AVE | — |
| 2019-08-23 | 19016-20000-19576 | Bldg-Alter/Repair - Commercial | 10174 MASON AVE | $130,000 |
| 2019-06-28 | 18041-40001-16854 | Electrical - Commercial | 19950 RINALDI ST | — |
| 2019-06-28 | 18044-40001-12417 | HVAC - Commercial | 19950 RINALDI ST | — |
| 2019-06-28 | 18042-40001-21862 | Plumbing - Commercial | 19950 RINALDI ST | — |
| 2019-06-26 | 18016-20001-13347 | Bldg-Alter/Repair - Commercial | 19950 RINALDI ST | $0 |
| 2019-03-22 | 19016-20000-08044 | Bldg-Alter/Repair - Commercial | 970 MONUMENT ST | $8,000 |
| 2019-01-15 | 19042-40000-01100 | Plumbing - Commercial | 18370 BURBANK BLVD | — |
| 2018-10-09 | 18041-20000-37872 | Electrical - Commercial | 18370 BURBANK BLVD | — |
| 2018-09-19 | 18041-10001-15507 | Electrical - Commercial | 881 ALMA REAL DR | — |
| 2018-09-19 | 18016-10001-11723 | Bldg-Alter/Repair - Commercial | 881 ALMA REAL DR | $0 |
| 2018-08-15 | 18041-20000-28053 | Electrical - Commercial | 18370 BURBANK BLVD | — |
| 2018-08-15 | 18016-20000-23539 | Bldg-Alter/Repair - Commercial | 18370 BURBANK BLVD | $50,000 |
| 2018-08-02 | 18042-10000-12134 | Plumbing - Commercial | 881 ALMA REAL DR | — |
| 2018-08-02 | 18044-10000-09380 | HVAC - Commercial | 881 ALMA REAL DR | — |
| 2018-08-02 | 18041-10000-15507 | Electrical - Commercial | 881 ALMA REAL DR | — |
| 2018-08-02 | 18016-10000-11723 | Bldg-Alter/Repair - Commercial | 881 ALMA REAL DR | $492,000 |
| 2016-06-27 | 16016-20000-10168 | Bldg-Alter/Repair - Commercial | 5525 ETIWANDA AVE | $60,000 |
Source: City of Los Angeles Open Data (LADBS Building Permits)
Permit data: City of Los Angeles Open Data (LADBS Building Permits), licensed under CC BY 4.0. HomeProFax matched permits to licensed contractors; data modified from the original. Not endorsed by the City of Los Angeles. Los Angeles permits shown run through May 2023.
Discipline, complaints & legal
No board discipline or complaints found in our current sources. Federal court search (CourtListener): no state-consistent possible match in our last sample run, or not yet run for this contractor.
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Williamson Construction Co Inc · General Building Contractor
Lawndale, CA
License on file: CA ••••6074
Sources for this report
- CA license board
- City of Los Angeles Open Data (LADBS Building Permits)
See something wrong? Request a correction. This report is compiled from public records and is not a consumer report.
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