Local boards license plumbers here, and in this area that board is Onondaga County's. Here is how permits work and what a homeowner can and cannot do.
State law lets local examining boards test plumbers and issue certificates of competency, and in this area plumbing licensing runs through Onondaga County. That makes it worth knowing a few rules before you sign anything.
Who handles plumbing permits
Onondaga County Plumbing Control, part of the county's Department of Water Environment Protection, oversees plumbing licensing, registration and permit issuance. It keeps a master list of licensed plumbers. The county's local law provides that only people holding a Certificate of Competency from the county Examining Board for Plumbers as a Master Plumber, or as a Class B or Class C Plumbing Contractor, and licensed accordingly, may obtain a permit to install plumbing. Anyone who obtains a permit for another person also violates that law.
Plumbers must be registered
Plumbers working in the county must be licensed and registered with Plumbing Control and carry the registration card on the job site. The card is there for inspectors and for property owners, so ask to see it.
Which license covers your address
County sources do not read identically on whether a Master Plumber's license covers the City of Syracuse. The county's licensing page gives a Master Plumber's scope as Onondaga County except the City of Syracuse, while section 2.3.A of the county requirements says a Master Plumber's license lets the holder do plumbing business in any municipality in the county. Because the sources differ, do not rely on a general rule. Ask your contractor which license covers your address, then confirm it with the county permit office.
For a new domestic water service in the City of Syracuse, the city's water department application aid says the licensed plumber who does the work takes the permit out from county Plumbing Control.
What a homeowner may do
The county does issue a homeowner plumbing permit. The conditions are specific. You apply in person with a signed request form, show proof of ownership and that the home is an owner occupied single family dwelling, submit a workers compensation affidavit and plans, and pay the permit and plan review fees. Concealed piping is inspected before it is covered, and there is a final inspection at the end. Only you, the homeowner, may do the permitted work. Most important, the county prohibits homeowners from doing any plumbing outside the house, naming water services and building sewers as examples.
When a permit is required
- A new water heater needs a permit before installation, even if the homeowner does the work.
- A new or changed plumbing system needs a permit, even when the homeowner does the work.
- The county lists in-kind repair or replacement of a faucet, flush valve, supply tube, fixture stop or toilet fill or flush mechanism as permit free, and replacing a faucet or shower head with one of the same flow rate.
The county requirements also say county plumbing permits are subject to the rules of the municipality where the work is done and to New York State law, so your town may add rules.
Verifying a contractor in practice
Look up the name on the county's published list before you call, write down the registration card details when they arrive and match the permit number to your address. That check separates a plumber who takes out permits from one who skips them. Ask for the quote on paper, with the scope, the permit and the cleanup spelled out.
Questions that protect you
- Which license do you hold, and does it cover my address?
- Is the permit in your name as the Master Plumber doing the work, and can I see the permit number?
- Will an inspection be scheduled, and when?
- Who patches walls, floors or ceilings that are opened for the work?
- What is in writing about price, schedule and cleanup?
Why this matters
A permit means an inspector looks at the work. Skipping it saves a visit and risks problems at resale or after a failure. Pairing a licensed plumber with a permit is what keeps the job on record.
Source Onondaga County Legislature and Onondaga County Department of Water Environment Protection, read Oct 5, 2026.