O'connor Plumbing & Fire Protection
O'connor Plumbing & Fire Protection is a California corporation based in South San Francisco (San Mateo County) with contractor license #498866 (C-16, C-36), first issued in 1986. CSLB status on Nov 9, 2026: Active, no violations. From Jan 1, 2025 to Nov 8, 2026, building departments recorded 9 permits under this name, 1 of them home projects (ADU). 56% of them were finaled by the city inspector. The median declared job value is $15,000. Most of the work was in 94103 · Mission / South of Market. The latest permit is from Jul 24, 2026. The license lists a contractor bond and workers' compensation coverage.
Business phone (CSLB)
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License
| License # | 498866 |
|---|---|
| Status | Active, no violations |
| Classes | C-16, C-36 |
| Business type | corporation |
| Issued / Expires | Sep 26, 1986 / Apr 30, 2028 |
| Contractor bond | Yes |
| Workers' comp | Yes, on file |
| Based in | South San Francisco, San Mateo County |
All permits (9)
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Jul 24, 2026 | Other permits | 94133 · North Beach / Russian Hill | $62,100 | Issued |
| Jul 24, 2026 | Other permits | 94133 · North Beach / Russian Hill | $62,100 | Issued |
| Dec 11, 2025 | Other permits | 94121 · Outer Richmond / Seacliff | $21,700 | Issued |
| Aug 27, 2025 | ADU / granny flat | 94115 · Pacific Heights / Western Addition | $4,000 | Finaled |
| Jun 13, 2025 | Other permits | 94103 · Mission / South of Market | $15,000 | Finaled |
| Jun 13, 2025 | Other permits | 94103 · Mission / South of Market | $15,000 | Finaled |
| Jun 13, 2025 | Other permits | 94103 · Mission / South of Market | $15,000 | Finaled |
| Apr 4, 2025 | Other permits | 94110 · Mission / Bernal Heights | $34,400 | Issued |
| Mar 7, 2025 | Other permits | 94122 · Sunset/Parkside / Inner Sunset | $10,000 | Finaled |
Street addresses of homeowners are never shown.
Work on permits
Where they work
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