Preston Pipelines Inc
Preston Pipelines Inc is an active, licensed contractor operating in Milpitas, CA. Operating under a California contractor license established in 1978. They hold 5 license classifications including A General Engineering Contractor, C-16 Fire Protection 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
- 367660
- Status
- Active
- Classification(s)
- A: General Engineering Contractor, C-16: Fire Protection Contractor, C-34: Pipeline Contractor, C-42: Sanitation System Contractor, HAZ: Hazardous Substance Removal Certification
- Tenure
- Licensed since 1978 (47 years)
- Issue Date
- December 21, 1978
- Expiration Date
- December 31, 2026
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – SAFECO INSURANCE COMPANY OF AMERICA
- Workers’ Compensation
- Workers' Compensation Insurance – ZURICH AMERICAN 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
- 133 BOTHELO AVENUE
- City
- Milpitas, CA
- ZIP Code
- 95035
- Phone
- (408) 262-1418
Need Coverage?
Quote and purchase a California contractor license bond online. Create a free account to compare rates and print your bond certificate instantly.
Get Started at Colonial Surety →
Free account required for rate quotes.
Get workers’ comp, general liability, or a bundled policy quoted online in minutes.
Get a General Contractor Insurance Quote →
Via Ergo Next Insurance. No obligation.
About These License Types
A: General Engineering Contractor
Authorizes construction of fixed works requiring specialized engineering knowledge and skill, including irrigation, drainage, water power, water supply, flood control, inland waterways, harbors, docks, shipyards, dams, hydroelectric projects, levees, railroads, highways, tunnels, airports, sewers, bridges, pipelines, parks, refineries, and power plants.
Not authorized: Does not authorize work under a Class B General Building Contractor license or any specialty (C) classification unless incidental to the engineering project.
C-16: Fire Protection Contractor
Lays out, fabricates, and installs all types of fire protection systems including all associated equipment.
Not authorized: Does not include electrical alarm systems.
C-34: Pipeline Contractor
Fabricates and installs pipelines for conveyance of fluids such as water, gas, or petroleum, including protective coatings and the trenching, boring, shoring, backfilling, compacting, paving, and surfacing to complete installation.
C-42: Sanitation System Contractor
Fabricates and installs cesspools, septic tanks, storm drains, and other sewage disposal and drain structures, including cast iron, steel, concrete, and vitreous pipe.
HAZ: Hazardous Substance Removal Certification
An add-on certification for removal of hazardous substances. Only issued to contractors holding A, B, C-12, C-21, C-36, C-57, or C-61/D-40 licenses.
Not authorized: Restricted to contractors holding qualifying base licenses.
Licensing Resources
Workers' comp requirements for California contractors
Deposit and payment rules for California contracts
Home improvement contract requirements
Need a Contractor for Your Project?
Get free quotes from licensed, pre-screened contractors in your area. Compare ratings, reviews, and pricing before you hire.
Starting a Contracting Business in California?
Most California contractors operate as an LLC or sole proprietorship with a DBA. Forming your business entity is a separate step from obtaining your CSLB license.
Verify on Official CSLB Website
License data sourced from the California Contractors State License Board. Last data update: April 05, 2026.