Sincere Construction Company INC
Sincere Construction Company INC is a California corporation based in Brisbane (San Mateo County) with contractor license #557739 (B), first issued in 1989. CSLB status on Nov 9, 2026: Active, no violations. From Jan 1, 2025 to Nov 8, 2026, building departments recorded 7 permits under this name, 4 of them home projects (ADU, kitchen & bath). 57% of them were finaled by the city inspector. The median declared job value is $100. Most of the work was in 94108 · Nob Hill / Chinatown. The latest permit is from Sep 11, 2026. The license lists a contractor bond and workers' compensation coverage.
Business phone (CSLB)
Before you sign, confirm the license is still active on the CSLB site, get a written contract and ask for the permit number for your job.
Is this your business? You can ask us to correct or remove this profile. hello@permitproven.com
License
| License # | 557739 |
|---|---|
| Status | Active, no violations |
| Classes | B |
| Business type | corporation |
| Issued / Expires | Feb 21, 1989 / Apr 30, 2027 |
| Contractor bond | Yes |
| Workers' comp | Yes, on file |
| Based in | Brisbane, San Mateo County |
Recent permits
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Sep 11, 2026 | Other permits | 94127 · West of Twin Peaks | $30,000 | Issued |
| Jun 12, 2026 | Other permits | 94108 · Nob Hill / Chinatown | – | Issued |
| Jun 12, 2026 | Other permits | 94108 · Nob Hill / Chinatown | – | Issued |
| Jun 12, 2026 | Kitchen & bath remodel | 94108 · Nob Hill / Chinatown | $100 | Finaled |
| Jun 12, 2026 | Kitchen & bath remodel | 94108 · Nob Hill / Chinatown | $100 | Finaled |
| Feb 18, 2025 | ADU / granny flat | 94132 · Oceanview/Merced/Ingleside / Sunset/Parkside | $166,700 | Finaled |
| Feb 18, 2025 | ADU / granny flat | 94132 · Oceanview/Merced/Ingleside / Sunset/Parkside | $166,700 | Finaled |
Street addresses of homeowners are never shown.