P-105.1 License required: No person shall install plumbing, water drain or waste piping, or fixtures unless properly licensed pursuant to Title 9 Section 9-1003. No person shall hire such unlicensed person to perform plumbing work. Any person who has had plumbing work performed by an unlicensed person must have a registered master plumber inspect and if necessary redo the work. Permits must be secured for the inspection activity and for any additional plumbing work as a result of the inspection.