Kitchen Gut, Basement Bath, and Prior Work Nobody Permitted
A licensed master plumber is hired to gut a first-floor kitchen and add a lavatory, shower, and floor drain in the basement of a two-family. Opening the ceiling exposes prior work: the proposed bathroom area was partly roughed in years ago with 1-1/2" pipe run 11 ft from the lavatory location with no vent, an unvented laundry standpipe tapped into the same branch, and a black-iron gas line to the range extended through a base cabinet with a flexible connector passing through the cabinet floor. No permit application was ever filed for that basement work. The owner says the last plumber 'did it all legal,' that the old work is 'grandfathered,' and asks that the ceiling be closed Friday so the taper can start. The master's apprentice is on site alone during the inspection window.
1. What must the master plumber do about the discovered work before any ceiling or cabinet is closed, and in what order should permits and inspections be handled?
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The permitted scope must describe what is actually going to exist. A permit is an approval to install, not a shield for old work. When the new bathroom ties into the existing branch and the existing gas line is re-used for a relocated range, the plumber is putting his or her name on those systems.
Sequence:
- File amendments/new applications to cover the basement bathroom (drainage, venting, water) and the gas re-piping as separate scopes if the local jurisdiction requires it. Do not list the old work as 'existing to remain' when it is being altered or extended.
- Correct the obvious violations - an unvented lavatory and an unvented laundry standpipe on a common branch, and a gas connector run through a cabinet floor where it is subject to damage. 'Grandfathered' applies to a legally installed, previously approved installation, not to unpermitted work that the code official never saw and that is now being extended.
- Call for the rough-in inspection covering the DWV piping and the gas piping while everything is still open, and get a passing result before concealment. Photograph conditions before covering.
- Only then insulate, fireblock, and close.
The judgment being tested is that the inspection must happen on open, corrected work - not after the taper has already mudded the joints.
2. The owner insists the ceiling will be closed Friday regardless. How should the plumber respond, and what is the exposure?
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Refuse, in writing, and stop the work at that point. Concealing uninspected plumbing puts the licensee, not just the owner, at risk: the plumber is the party who performed and covered the work, and 'the owner told me to' is not a defense in a licensing complaint. The plumber also cannot later certify the installation or sign off on a final inspection for work nobody saw.
Practical response:
- Send a short written notice (email is fine) stating what remains open, that an inspection has been requested, and that closing the ceiling before inspection will be treated as work outside the contract.
- Offer the owner a dated schedule: inspection Tuesday, close Wednesday if it passes. This converts a refusal into a plan.
- If the owner closes it anyway, document conditions with dated photos and do not proceed to trim-out or set fixtures on concealed, uninspected piping until the code official's direction is resolved.
The exam point: covering work is the licensee's decision and the licensee's liability, not the owner's.
3. What supervisory obligation does the master plumber have while the apprentice is working alone, and what must be true before the gas piping is restored to service?
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The master holds the permit and is responsible for every installation performed under it. An apprentice may perform work only under the supervision required by the licensing rules - not unsupervised on a job where the piping is being cut, extended, and concealed. Because the master is not on site, work that requires direction (cutting into and re-routing gas piping, tying in the DWV branch) must wait until the master or a properly licensed journeyman is present.
Before gas is restored:
- The corrected piping must be complete and supported, with a compliant connector and shutoff for the range.
- The required pressure test must be performed at the pressure and duration the code specifies for that operating pressure, witnessed and documented.
- The appliance must be reconnected, leak-tested at operating pressure with a suitable detector or leak solution, and the appliance checked for proper operation and venting.
- The rough-in inspection must have passed for the gas work.
An apprentice alone with a permit in someone else's name is exactly the fact pattern the Board looks for.