Leak Detection in Chicagoland

Mr. Plumbing finds hidden water leaks in homes throughout Crestwood and the Chicagoland area. Our leak detection follows four steps: meter and pressure testing, isolation, acoustic detection, then thermal imaging and moisture testing. Each step narrows down where the water is escaping, so the leak can be repaired at its source. Call 708-385-8607 to schedule leak detection.

Signs You May Have a Hidden Water Leak

Many leaks happen inside walls, under floors or above ceilings, where you can’t see them. These signs often point to a hidden leak:

• A water bill that is higher than usual, even though your water use hasn’t changed
• A water meter that keeps moving when every faucet and appliance is off
• Water stains or discoloration on ceilings, walls or floors
• Paint that bubbles or peels, or drywall that feels soft
• A musty smell or mold in one area of the home
• The sound of running water when nothing is turned on
• Low water pressure throughout the house

How Mr. Plumbing Finds Hidden Leaks

Mr. Plumbing’s leak detection moves from confirming that a leak exists to pinpointing exactly where it is.

1. Meter and pressure testing. With all water in the home turned off, the plumber checks the water meter for movement and tests whether the plumbing system holds pressure. A meter that keeps moving, or a system that loses pressure, confirms there is a leak.
2. Isolation. The plumber shuts off parts of the plumbing system one at a time to find which part is losing water. This step separates a leaking toilet or fixture from a leak in a supply line, for example.
3. Acoustic detection. Water escaping from a pressurized pipe makes a sound. Acoustic listening equipment picks up that sound through walls, floors and ceilings, so the plumber can trace the leak to a specific area.
4. Thermal imaging and moisture testing. A thermal camera shows the temperature differences that water leaves in building materials, and moisture testing confirms where walls, floors or ceilings are wet. Together, these tools confirm the leak’s location before any repair begins.

What Happens After the Leak Is Found

Once the leak is located, your plumber explains what was found and your repair options in non-technical language. You get up-front pricing before any work begins, so the price you are quoted is the price you pay. Mr. Plumbing then repairs or replaces the damaged pipe or fixture. Learn more about our leaking pipe repair service.

Why a Hidden Leak Shouldn’t Wait

A small leak inside a wall or ceiling can run for weeks before it shows. During that time, water can soak drywall, insulation, subfloors and framing, and the damp space can grow mold. A hidden leak also wastes water that you pay for every month. Finding a leak early usually means a smaller repair and less damage to your home.

What to Do If Water Is Actively Leaking

• Turn off your home’s main water shut-off valve. Our quick tip video shows how to find it.
• If water is near outlets, light fixtures or appliances, turn off power to that area at the electrical panel, but only if you can reach the panel safely.
• Move belongings out of the way and soak up standing water.
• Call Mr. Plumbing at 708-385-8607. We offer 24/7 emergency service.

Why Homeowners Choose Mr. Plumbing

• Serving Crestwood and the Chicagoland area since 1972
• Licensed and insured plumbers
• Up-front pricing before any work begins
• 24/7 emergency service
• Your call is answered by a real person, not an answering machine

Leak Detection FAQ

How do I know if I have a hidden water leak?

The most common signs are a higher water bill, a water meter that moves when no water is in use, water stains, peeling paint, a musty smell and the sound of running water. If you notice any of these signs, a leak detection visit can confirm whether there is a leak and where it is.

Can I check for a leak myself?

Yes. Turn off every faucet and water-using appliance, then look at your water meter. If the meter or its leak indicator keeps moving, water is leaving the system somewhere. Our guide on how to check your home for a hidden water leak walks through more checks you can do.

Do you have to open walls to find a leak?

Acoustic detection, thermal imaging and moisture testing locate a leak from outside the wall, floor or ceiling. Once the location is confirmed, only the area needed to reach the pipe has to be opened for the repair.

What is the difference between leak detection and leak repair?

Leak detection finds where a hidden leak is. Leak repair fixes the pipe or fixture once the leak is found. Mr. Plumbing handles both, so the same team that finds the leak can repair it.

How much does leak detection cost?

Mr. Plumbing provides up-front pricing before any work begins, so you know the cost in advance.

Do you offer emergency leak service?

Yes. Mr. Plumbing offers 24/7 emergency service. If water is actively leaking, shut off your main water valve and call 708-385-8607.

Schedule Leak Detection with Mr. Plumbing

If you suspect a hidden leak, call Mr. Plumbing at 708-385-8607 or request service online.