Plumbing permit & inspections process guide

Who Can apply for plumbing permit?

In the state of California if the scope of work limited only to plumbing work, a C-36 plumbing contractor or/and The homeowner may apply for the plumbing permit.

If the work involving any framing work in addition to plumbing work B- General building contractor can apply for the plumbing work as well. The homeowner can apply for the plumbing permit and hire help as long as it is under his supervision.

Plumbing permit process?

If the plumbing permit is required, the contactor or the homeowner shall file an application with the local jurisdictions ( City, County). The applicants shall expect to have the following information to be able to fill out the permit application properly (CPC 104.3),

  • The scope of work for example ( replacing water heater, house re-pipe, etc.)
  • The property address.
  • Type of building (residential or commercial) and occupancy type to find out the occupancy type of your building please check California building code Here.
  • The owner and contractor signatures. Contractor may have a letter from the owner allowing him to apply for the permit in his/her behalf.

When plumbing permit is required?

In general a plumbing permit is required for all plumbing work inside and outside the property in residential and commercial properties. However, the California plumbing code which is the most restricted code has few exceptions where the plumbing permit is not required (CPC 104.2),

  • Stopping leaks in drains, waste, and vent pipe. However, if any parts of the drain, waste, vent become defective and it needs to be removed and replaced, the plumbing permit now is required.
  • clearing any clogging inside the drain, waste and vent without replacing any plumbing parts or replacing any plumbing fixture.

So the answer is always yes. If you live in California a Plumbing permit is required if you replacing or adding any new of the plumbing pipes or/and fixtures.

What are the required plumbing inspections?

It depends on the scope of the pluming work. However, the plumbing code requires three main inspections and always check with the assigned inspector before covering any plumbing parts. The following general inspections are required by the plumbing code. (CPC 105.2),

  • The underground inspection, pipes shall be installed and in place. The new underground pipes shall be under test before calling for inspection to verify any leaks.
  • Rough-in inspection after installing all plumbing pipes but prior to installing drywall or plaster and it shall be under test.
  • Final inspection shall be made upon completion of the installation.

Reference Codes – Uniform Plumbing Code – California Plumbing Code


One Reply to “Plumbing permit & inspections process guide”

  1. It makes sense that you should know the scope of the work about to be done when you are getting a permit. My uncle needs to do some work on a local building and he wants professional help. He needs to find a local engineer that can help him get this permit and do the job well.

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