Water Leak Detection & Pipe Repair in NYC

Hidden water leaks ruin finishes and drive up bills. Franco Belli Plumbing & Heating delivers precise water leak detection in Brooklyn and across NYC, then performs clean, code-compliant pipe repair to stop damage and restore pressure.

Find It Fast. Fix It Right.

Our licensed team uses electronic listening equipment, thermal imaging, moisture mapping, and (for drain lines) video cameras to pinpoint leaks behind walls, under floors, or underground—often with a single, minimal access point. Expect clear pricing, photo documentation, and repairs that meet NYC code.

  • Non-invasive diagnostics that reduce demolition

  • Fast response in Brooklyn, Manhattan, Queens, SI & The Bronx

  • Repairs for copper, PEX, cast iron, and galvanized systems

  • Detailed reports for boards, property managers, and insurers
Statue of Liberty icon in black.

Expert Leak Detection Services

Leaks aren’t always loud. We investigate high water bills, damp ceilings, moldy smells, or unexplained pressure drops with pro-grade tools to isolate supply, fixture, or drain failures quickly. Accurate diagnosis saves time, money, and disruption in brownstones, co-ops, condos, and mixed-use buildings.

Pipe Repair, Replacement & Upgrades

Once we locate the source, Franco Belli completes spot repairs or full repiping—matching materials, restoring pressure, and bringing work up to NYC plumbing code. From pinholes in copper to cracked cast-iron stacks, we repair, replace, or reroute lines with clean finishes and coordinated shut-downs

Leaking pipe with an exclamation point icon.

Electronic Leak Detection

Acoustic and tracer methods to identify supply leaks through walls and floors with minimal openings.

Black icon of a gauge connected to a pipe, possibly indicating pressure or flow.

Thermal Imaging & Moisture Mapping

Infrared and meters trace hidden moisture paths to the exact failure point.

Black plumbing pipes with a wrench icon. Pipes appear broken, signaling repair.

Pipe Repair & Repiping

Copper, PEX, cast iron, and galvanized replacements; pressure tests and code sign-offs.

Black pipe with a crack and a water droplet leaking.

Slab & Underground Leaks

Service-line and under-slab leak location, permits, and coordinated restoration.

Close-up of water meters connected by pipes, showing gauges with numbers and a yellow handle.

Emergency Leak Response—24/7

Major leak or ceiling collapse? We isolate the line, stop the flow, and perform emergency pipe repair day or night. Our crews work across NYC to stabilize quickly, then return for permanent restoration and any needed upgrades.

  • How do I know if a leak is on supply or drain?

    Continuous meter movement or hissing behind walls points to supply; odors or leaks only during use point to drains. We test to confirm.

  • Will you need to open multiple walls?

    Usually no. Targeted access based on instrument readings minimizes demolition and speeds restoration.

  • Can you document findings for my board or insurer?

    Yes. We provide photos, notes, and repair summaries on request.

  • Do you handle water main or service-line leaks?

    We diagnose and, when needed, coordinate permits, excavation, and replacement to the property line.

  • What if my building has old galvanized piping?

    We can repipe to copper or PEX in phases to reduce downtime and future leaks.

Think You Have a Hidden Leak?

Call (718) 424-0971 or request an appointment—Franco Belli will find the leak and fix it with minimal disruption anywhere in NYC.