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State files updated Oct 29, 2026
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Orth Construction Inc

Orth Construction Inc of Livermore holds California license 748900 (B General Building). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jan 31, 2027.

Licensed 28 years, longer than 65% of 192 active Livermore general contractors.

Active

  • Workers' comp ends Dec 16, 2026 (48 days)

Orth Construction Inc, Livermore

License
748900
Class
B General Building
Expires
Jan 31, 2027
Bond
$25,000
Workers' comp
Insured to Dec 16, 2026

CSLB file dated Oct 29, 2026

From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.

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

Bond
$25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredEverest Premier Insurance Company, from Dec 16, 2025, to Dec 16, 2026

Who is on this license?

Responsible managing officer, CEO and president
Michael D. OrthSince May 5, 1998

What work does this license cover?

Issued May 5, 1998. Reissued Jan 9, 2007.

Which other Livermore businesses hold B General Building?

General Contractors in LivermoreCalifornia general contractors

What should you check before hiring?

What to ask before you hire

  1. Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
  2. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  3. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  4. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  5. 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.
  6. 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 29, 2026)
  2. Contractors State License Board (CSLB)