MAYO MARK SAM operating as a sole owner is licensed in California under CSLB number 656466. The license was first issued in 1992, putting the business at 34 years on the active CSLB roster. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with AMERICAN CONTRACTORS INDEMNITY COMPANY and active workers' compensation coverage from NATIONAL FIRE INSURANCE COMPANY OF HARTFORD. The business is based in AGUA DULCE, in Los Angeles County, California.