Bay Air Systems Inc
Report verdict
Licensed & active (expires 2028-01-31) · No board discipline flag found in covered sources · 33 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 | 33 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: 2026-08-06.
What we checked
| License | Checked | CA Corporation #450929 · active |
| Bond | Checked | $25,000 with MERCHANTS BONDING COMPANY (MUTUAL) · as of 2026-10-14 |
| Workers' comp | Checked | Workers' Compensation Insurance (CONTINENTAL INSURANCE COMPANY (THE)) · as of 2026-10-14 |
| Years licensed | Checked | Licensed since 1984 |
| Business registration | Not available in CA | State business registry not loaded yet |
| Permits | Checked | 33 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 1984 (earliest original issue date on these state license records; not a business start date)
| License # | Type | Status | Issued | Expires | Source |
|---|---|---|---|---|---|
| CA 450929 | Corporation (C-4| C10| C20| C36) Workers' comp: Workers' Compensation Insurance (CONTINENTAL INSURANCE COMPANY (THE)); Contractor bond: $25000 (MERCHANTS BONDING COMPANY (MUTUAL)) | clear | 1984-01-03 | 2028-01-31 | State board |
Bond & workers' comp
| Contractor bond | $25,000 · MERCHANTS BONDING COMPANY (MUTUAL) · effective 2025-12-28 |
|---|---|
| Workers' comp | Workers' Compensation Insurance · CONTINENTAL INSURANCE COMPANY (THE) · effective 2026-10-01 · expires 2027-10-01 |
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 |
|---|---|---|---|---|
| 2026-08-06 | 202607235448 | otc alterations permit | 2101 Mission St | $1 |
| 2026-04-30 | 202604300382 | otc alterations permit | 188 Octavia St | $27,000 |
| 2026-04-13 | 202604028770 | otc alterations permit | 2101 Mission St | $25,000 |
| 2026-04-13 | 202604028772 | otc alterations permit | 2101 Mission St | $250,000 |
| 2023-03-23 | 23044-90000-05171 | HVAC - Commercial | 1124 SAN JULIAN ST | — |
| 2023-03-15 | 23044-90000-04477 | HVAC - Commercial | 1124 SAN JULIAN ST | — |
| 2022-09-07 | 22044-90000-10820 | HVAC - Commercial | 2901 LOS FELIZ BLVD | — |
| 2022-07-01 | 22044-10000-07176 | HVAC - Commercial | 13550 PAXTON ST | — |
| 2022-02-11 | 22044-90000-01448 | HVAC - Commercial | 10410 SEPULVEDA BLVD | — |
| 2020-12-01 | 20044-10000-09255 | HVAC - Commercial | 5370 ALHAMBRA AVE | — |
| 2020-10-30 | 202009174401 | otc alterations permit | 251 Rhode Island St | $73,500 |
| 2020-10-07 | 202009174414 | otc alterations permit | 840 Battery St | $162,590 |
| 2020-03-03 | 20044-90000-02718 | HVAC - Commercial | 6081 CENTER DR | — |
| 2019-12-31 | 201912311017 | otc alterations permit | 1098 Harrison St | $1 |
| 2019-12-26 | 19044-90000-15818 | HVAC - Commercial | 6081 CENTER DR | — |
| 2019-12-10 | 201912048653 | otc alterations permit | 1098 Harrison St | $1 |
| 2019-09-23 | 19044-90000-11848 | HVAC - Commercial | 6081 CENTER DR | — |
| 2019-09-19 | 201909192051 | otc alterations permit | 1098 Harrison St | $1 |
| 2019-08-29 | 201908290158 | otc alterations permit | 1098 Harrison St | $1,000 |
| 2019-08-02 | 201908027674 | otc alterations permit | 1098 Harrison St | $165,000 |
| 2019-05-01 | 201905019379 | otc alterations permit | 840 Battery St | $84,500 |
| 2018-09-28 | 201809180582 | otc alterations permit | 1098 Harrison St | $1,200,000 |
| 2015-05-21 | 201505206755 | otc alterations permit | 1580 16th St | $77,950 |
| 2015-05-11 | 15042-10000-09383 | Plumbing - Commercial | 1150 BEVERLY DR | — |
| 2014-09-03 | 201409025185 | otc alterations permit | 275 Rhode Island St | $173,250 |
| 2014-08-14 | 201406178601 | additions alterations or repairs | 170 Columbus Av | $165,000 |
| 2014-05-06 | 14016-10000-05251 | Bldg-Alter/Repair - Commercial | 1150 BEVERLY DR | $1,400,000 |
| 2014-04-23 | 14044-10000-02028 | HVAC - Commercial | 1150 BEVERLY DR | — |
| 2014-04-15 | 14041-10000-09913 | Electrical - Commercial | 1150 BEVERLY DR | — |
| 2013-02-06 | 201302069597 | otc alterations permit | 840 Battery St | $40,000 |
| 2012-09-06 | 201208308583 | otc alterations permit | 840 Battery St | $296,250 |
| 2012-02-29 | 201202063621 | otc alterations permit | 2201 Chestnut St | $10,000 |
| 2004-06-22 | 200406227020 | otc alterations permit | 2172 Mission St | $12,000 |
Source: DataSF (Building Permits + Building Permits Contacts), 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.
Source: DataSF, City and County of San Francisco (Building Permits; Building Permits Contacts).
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.
Around the web
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Bay Air Systems Inc · Boiler, Hot Water Heating and Steam Fitting Contractor
Concord, CA
License on file: CA ••••0929
Sources for this report
- CA license board
- City of Los Angeles Open Data (LADBS Building Permits)
- DataSF (Building Permits + Building Permits Contacts)
See something wrong? Request a correction. This report is compiled from public records and is not a consumer report.
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