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California contractor license

Preston Pipelines Inc

Preston Pipelines Inc of Milpitas holds California license 367660 (A General Engineering, C16 Fire Protection, C34 Pipeline, C42 Sanitation System, HAZ Hazardous Substance Removal Certification). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Dec 31, 2026.

Licensed 47 years, longer than 96% of 92 active Milpitas general contractors.

Active

Preston Pipelines Inc, Milpitas

License
367660
Class
A General Engineering; C16 Fire Protection; C34 Pipeline; C42 Sanitation System; HAZ Hazardous Substance Removal Certification
Expires
Dec 31, 2026
Bond
$25,000
Workers' comp
Insured to Oct 1, 2027

CSLB file dated Oct 30, 2026

From the CSLB file dated Oct 30, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Oct 30, 2026. Confirm with the board: CSLB license check

What bond, insurance and workers' comp are on file?

Bond
$25,000Safeco Insurance Company Of America, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredZurich American Insurance Company, from Oct 1, 2026, to Oct 1, 2027

Who is on this license?

Officer
David W. HeslopSince Dec 9, 2008
Officer
Kyle M. PrestonSince Jul 3, 2024
Responsible managing officer, CEO and president
Michael D. PrestonSince Feb 23, 1982
CEO and president
Jordan A. ThomasSince Aug 27, 2024

What work does this license cover?

Issued Dec 21, 1978.

Which other Milpitas businesses hold A General Engineering?

California general contractors

What should you check before hiring?

What to ask before you hire

  1. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  2. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  3. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  4. Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
  5. Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.

If the license is lapsed

  1. Don't sign or pay a deposit until the CSLB shows the license active again.
  2. Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Oct 30, 2026)
  2. Contractors State License Board (CSLB)