Good to know
Onondaga County plumbing license
Dannan Plumbing is on Onondaga County's list of licensed plumbers (updated January 2025).
Onondaga County's list of licensed plumbers (updated January 2025)
Checked Oct 5, 2026
New York has no state plumbing license. Onondaga County and several cities license plumbers; where one does, we check its list. Source