How Can I Find a Water Leak Inside a Wall or Ceiling?

To find a water leak inside a wall or ceiling, use non-invasive electronic leak detection and thermal imaging to pinpoint hidden moisture without opening surfaces. Hidden pipe or water-line leaks are the most common sources, and pressure changes often give them away before staining appears. Roy’s uses advanced tools to locate leaks quickly and accurately, then provides repair options that minimize disruption, including trenchless methods for water lines when needed. Our local team handles these hidden leaks throughout Hamburg and nearby Southtowns.

What a pro will typically do:

• Perform electronic listening and pressure tests to isolate the leaking line.
• Scan with infrared thermal imaging to spot temperature changes from moisture.
• Use targeted camera inspections to verify the exact location before any opening. If water is actively flowing, shut off the main water supply and call for emergency service. <br/>

Updated: 2026-04-04 <br/> Need help in Hamburg, NY? Call (716) 202-9997 or book online. "Aaron from Roy's found the source of our leak, diagnosed the problem and then fixed the issue." — Laura M.