About Us

Mainline Leak Detection provides professional water leak detection services for residential, commercial, and municipal properties throughout the South Central Pennsylvania area. While exposed plumbing issues can often be identified by plumbers, leaks that occur underground, beneath concrete slabs, or inside walls and floors require specialized detection methods to locate accurately without unnecessary damage.

Mainline Leak Detection uses advanced acoustic listening equipment, tracer gas testing, infrared thermal imaging, and non-invasive diagnostic techniques to accurately locate the source of even the most difficult leaks. We work closely with homeowners, property managers, HOAs, plumbers, contractors, and insurance professionals to identify problems efficiently and precisely.

We commonly locate leaks and related issues in the following areas:

• Concrete slab leaks

• Underground water service lines

• Leaks within walls, ceilings, and floors

• Irrigation and exterior water systems

• Geothermal system leaks

• Sewer odor investigations and source identification

Once the source of the leak or odor has been identified, we provide clear documentation and reporting so repairs can be made quickly and accurately by the appropriate trade—without guesswork or unnecessary excavation.