Ru Builders INC
Ru Builders INC is a California corporation based in South San Francisco (San Mateo County) with contractor license #1082100 (B), first issued in 2021. CSLB status on Nov 9, 2026: Active, no violations. From Jan 1, 2025 to Nov 8, 2026, building departments recorded 5 permits under this name, 2 of them home projects (kitchen & bath, remodel & repair). 60% of them were finaled by the city inspector. The median declared job value is $2,500. Most of the work was in 94127 · West of Twin Peaks, 94114 · Castro/Upper Market / Noe Valley. The latest permit is from Apr 1, 2026. The license lists a contractor bond and an exemption from workers' compensation (no employees).
Business phone (CSLB)
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License
| License # | 1082100 |
|---|---|
| Status | Active, no violations |
| Classes | B |
| Business type | corporation |
| Issued / Expires | Oct 6, 2021 / Oct 31, 2027 |
| Contractor bond | Yes |
| Workers' comp | Exempt (no employees) |
| Based in | South San Francisco, San Mateo County |
Recent permits
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Apr 1, 2026 | Remodel & repair | 94114 · Castro/Upper Market / Noe Valley | $43,000 | Issued |
| Nov 17, 2025 | Other permits | 94107 · Potrero Hill / South of Market | $2,500 | Finaled |
| Nov 13, 2025 | Other permits | 94114 · Castro/Upper Market / Noe Valley | $1,600 | Finaled |
| May 23, 2025 | Kitchen & bath remodel | 94127 · West of Twin Peaks | $32,000 | Issued |
| Feb 24, 2025 | Other permits | 94127 · West of Twin Peaks | – | Finaled |
Street addresses of homeowners are never shown.
Work on permits
Where they work
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