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State files updated Oct 29, 2026
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California contractor license

Welte Construction Inc

Welte Construction Inc of San Leandro holds California license 410148 (B General Building). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jun 30, 2028.

Licensed 45 years, longer than 93% of 172 active San Leandro general contractors.

Active

Welte Construction Inc, San Leandro

License
410148
Class
B General Building
Expires
Jun 30, 2028
Bond
$25,000
Workers' comp
Insured to Oct 1, 2027

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
$25,000Atlantic Specialty Insurance Company, from May 12, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredInsurance Company Of The West, from Oct 1, 2026, to Oct 1, 2027

Who is on this license?

Responsible managing officer, CEO and president
William H. WelteSince Aug 8, 1981

What work does this license cover?

Issued Aug 8, 1981. Reissued Jun 29, 2010.

Which other San Leandro businesses hold B General Building?

General Contractors in San LeandroCalifornia 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 29, 2026)
  2. Contractors State License Board (CSLB)