Ashtonco Llc
Ashtonco Llc is an active, licensed contractor operating in Piedmont, CA. Operating under a California contractor license established in 2019. They hold 5 license classifications including B General Building Contractor, C-17 Glazing Contractor, and 3 others. They currently maintain an active contractor bond and workers' compensation insurance. No disciplinary actions have been recorded against this license.
License Information
- License Number
- 1058186
- Status
- Active
- Classification(s)
- B: General Building Contractor, C-17: Glazing Contractor, C-23: Ornamental Metal Contractor, C-43: Sheet Metal Contractor, C-51: Structural Steel Contractor
- Tenure
- Licensed since 2019 (6 years)
- Issue Date
- September 16, 2019
- Expiration Date
- September 30, 2027
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – WESTERN SURETY COMPANY
- Workers’ Compensation
- Workers' Compensation Insurance – EMPLOYERS PREFERRED INSURANCE COMPANY
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 91 WOODLAND WAY
- City
- Piedmont, CA
- ZIP Code
- 94611
- Phone
- (510) 773-0622
About These License Types
B: General Building Contractor
Authorizes construction of structures including residential, commercial, and industrial buildings requiring at least two unrelated building trades or crafts. May take prime contracts or subcontracts for framing or carpentry. May subcontract all specialty work but must hold the appropriate C license to self-perform specialty trade work.
Not authorized: Cannot self-perform specialty trade work (electrical, plumbing, HVAC, etc.) without holding the corresponding C license. Cannot contract for C-16 Fire Protection or C-57 Well Drilling without the appropriate license or subcontractor.
C-17: Glazing Contractor
Selects, cuts, assembles, and installs all types of glass, glass work, mirrored glass, and glass substitutes for glazing. Fabricates and glazes frames, panels, sashes, and doors.
C-23: Ornamental Metal Contractor
Assembles, casts, cuts, shapes, forges, welds, fabricates, and installs brass, bronze, copper, cast iron, wrought iron, stainless steel, and other metals for architectural treatment and ornamental decoration of structures.
Not authorized: Does not include the work of a sheet metal contractor (see C-43).
C-43: Sheet Metal Contractor
Selects, cuts, shapes, fabricates, and installs sheet metal including cornices, flashings, gutters, leaders, pans, kitchen equipment, duct work with insulation, patented chimneys, metal flues, and metal roofing systems.
C-51: Structural Steel Contractor
Fabricates and erects structural steel shapes and plates used as structural members for buildings and structures, including riveting, welding, rigging, and metal roofing systems.
Verify on Official CSLB Website
License data sourced from the California Contractors State License Board. Last data update: February 20, 2026.