Leak Detection in Covina, CA

Protecting Homes & Businesses in the San Gabriel Valley

Not every plumbing leak is obvious. While some leaks reveal themselves through dripping faucets or water stains, others remain hidden behind walls, beneath concrete slabs, under your yard, or inside your plumbing system for weeks or even months. 

Left undetected, even a small leak can waste thousands of gallons of water, increase your utility bills, damage your home's structure, and create conditions for mold and mildew growth.

Courtesy Plumbing has provided professional leak detection services throughout Covina, the San Gabriel Valley, and surrounding communities since 1970. Our family-owned and operated plumbing company has helped customers quickly and accurately locate hidden leaks so repairs can begin before more extensive damage occurs. 

We combine advanced diagnostic equipment with over five decades of plumbing experience to identify the source of leaks while minimizing unnecessary disruption to your property.

Leak Detection & Repair Services We Provide

No matter where a leak occurs, locating it quickly is the first step toward protecting your home from costly water damage. 

Courtesy Plumbing provides comprehensive leak detection and repair services for residential and business plumbing systems, including:

• Hidden water line leaks – Locating and repairing leaks in water supply lines concealed behind walls, beneath floors, or underground.
• Slab leak detection and repair  – Finding leaks beneath your concrete foundation and recommending the most effective repair solution.
• Pipe leak repairs  – Repairing damaged, corroded, cracked, or leaking pipes throughout your plumbing system.
• Fixture leak repairs - Resolving leaks involving faucets, sinks, toilets, showers, tubs, garbage disposals, and other plumbing fixtures.
• Water service line leaks – Identifying leaks in the underground line connecting your home to the municipal water supply.
• Yard and underground leak detection  – Locating hidden underground leaks before they lead to excessive water loss or property damage.
• Drain and sewer leak detection  – Identifying leaks affecting drain or sewer piping that may be contributing to moisture problems or foundation concerns.
• Gas leak detection  – Safely locating suspected gas leaks and recommending the appropriate repairs to restore the integrity of your gas line.
• Water pressure diagnostics – Determining whether fluctuating or low water pressure is the result of a hidden plumbing leak or another issue within your system.

Once we've accurately located the source of the leak, we'll explain your repair options, provide honest recommendations, and complete the work needed to restore the safety and reliability of your plumbing system.