Plumbing is one of the most permit-driven trades in New York. Most meaningful plumbing work — new supply and waste lines, fixture installs, water main and sewer connections, gas piping — requires a permit pulled by a licensed master plumber. That requirement is exactly what makes the NYC DOB permit feed such a strong lead source for plumbers.
Every plumbing-related permit issued by the DOB shows up in the public feed: the work type, the address and borough, the property owner, the contractor who pulled it, and the issue date. Filter the feed to plumbing work and you're looking at a live list of buildings where plumbing work is funded, approved, and about to happen.
There are two distinct opportunities in that list:
1. Permits another plumber already pulled. These tell you the local market — who's active, where the work is concentrated, what kinds of jobs are moving. Not direct leads, but useful intelligence.
2. General Construction permits where the plumbing scope is still open. This is the real prize. When a GC pulls a General Construction permit for a renovation or fit-out, the plumbing rough-in and fixtures are usually subbed out. That GC needs a plumber, and the permit hands you their business name.
A GC-led job is funded and approved before the plumbing sub is even hired. Reaching the GC at that moment beats waiting for the job to come to you.
The DOB feed updates daily, so a permit you see this week was issued this week. For owner- or GC-led projects, the plumbing scope gets awarded early — often within the first couple of weeks. A permit that's two months old has almost certainly had its plumber chosen. Speed is the entire advantage: being the plumber who reaches out while the decision is still open.
A plumber working Queens and Brooklyn has no use for Staten Island or Bronx permits. The data is filterable by borough, so you can narrow it to the areas you actually service and skip the rest. Combined with a work-type filter for plumbing and mechanical, you get a short, relevant list instead of a citywide firehose.
Permit records are public. Contacting a GC about subbing the plumbing scope is routine business development. If you reach property owners directly, US rules apply — the CAN-SPAM Act for email and the TCPA for calls and texts — so know the requirements for your channel before you start.
Nova Essentials pulls NYC DOB permit data every day and surfaces plumbing and GC-led jobs across all five boroughs — with the owner, the contractor on record, and the job stage. Filter to your work type and boroughs in two clicks. Seven days free, $29/month after.
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