Welin Builders INC

Welin Builders INC is a California corporation based in Daly City (San Mateo County) with contractor license #1073129 (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). 80% of them were finaled by the city inspector. The median declared job value is $8,000. Most of the work was in 94112 · Excelsior / Outer Mission. The latest permit is from Dec 9, 2025. The license lists a contractor bond and an exemption from workers' compensation (no employees).

5permits 2025–26
2home-project permits
80%finaled by inspector
$8,000median declared job value

(650) 303-8445

Business phone (CSLB)

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License

License #1073129
StatusActive, no violations
ClassesB
Business typecorporation
Issued / ExpiresFeb 1, 2021 / Feb 28, 2027
Contractor bondYes
Workers' compExempt (no employees)
Based inDaly City, San Mateo County

Recent permits

DateWorkAreaDeclared valueStatus
Dec 9, 2025Other permits94112 · Excelsior / Outer Mission$3,500Finaled
Dec 9, 2025Kitchen & bath remodel94112 · Excelsior / Outer Mission$122,500Finaled
Jun 18, 2025Other permits94112 · Excelsior / Outer Mission$8,000Finaled
Jun 18, 2025Other permits94112 · Excelsior / Outer Mission$8,000Finaled
Jan 30, 2025Kitchen & bath remodel94114 · Castro/Upper Market / Noe Valley$28,192Issued

Street addresses of homeowners are never shown.

Work on permits

Other permits · 3 permits Kitchen & bath remodel · 2 permits

Where they work

94112 · Excelsior / Outer Mission · 4 permits94114 · Castro/Upper Market / Noe Valley · 1 permit

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