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All states California

California contractor license

Schlaefer Mark

Mark Schlaefer

Active Expires January 31, 2027

License number
655888
License type
General building (B)
Location
Tollhouse, CA
Issued by
California Contractors State License Board

What this license means

California requires a CSLB license for any job where labor and materials cost $1,000 or more, and the license must cover the kind of work. Each classification (the letter-number codes) is one kind of work; a C-39 roofer can't contract for electrical work.

Before you hire Schlaefer Mark

  1. Confirm the record on the official site

    Our copy is from the state's file dated November 4, 2026. The official record is live and also lists complaints and discipline, which our data doesn't include.

    Open license 655888 on CSLB

  2. Make sure the name on the contract matches

    The contract, the permit and the license should all name Schlaefer Mark or Mark Schlaefer. A different company name on the paperwork usually means someone else is working under this license.

  3. Check the license covers your job

    This is a general building (b) license. If your job is a different trade, the contractor needs that license too, or a licensed sub for that part.

Hiring in California

See the California contractor licensing guide for which work needs a license, small-job limits, and how to file a complaint, or the step-by-step check. Or look up another contractor.