Alef Construction CORP
Alef Construction CORP is a California corporation based in San Carlos (San Mateo County) with contractor license #854347 (B), first issued in 2005. CSLB status on Nov 9, 2026: Active, no violations. From Jan 1, 2025 to Nov 8, 2026, building departments recorded 1 permit under this name, 1 of them home projects (room addition). The latest permit is from Sep 12, 2025. The license lists a contractor bond and workers' compensation coverage.
1permit 2025–26
1home-project permit
21years licensed
Sep 12, 2025latest permit
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 # | 854347 |
|---|---|
| Status | Active, no violations |
| Classes | B |
| Business type | corporation |
| Issued / Expires | Feb 10, 2005 / Feb 28, 2027 |
| Contractor bond | Yes |
| Workers' comp | Yes, on file |
| Based in | San Carlos, San Mateo County |
Recent permits
| Date | Work | Area | Declared value | Status |
|---|---|---|---|---|
| Sep 12, 2025 | Room addition | 94107 · Potrero Hill / South of Market | $26,668 | Finaled |
Street addresses of homeowners are never shown.
Work on permits
Room addition · 1 permit
Where they work
Similar contractors in San Carlos
- Greatwall Building Construction INCSan Carlos · #915513 · 6 permits