Plumbing Leak Detection In Delaware & Maryland Before Water Damage Spreads
A hidden plumbing leak can run for days, weeks, or longer before it's obvious — behind a wall, under a floor, or inside a cabinet — and by the time it shows up as a stain, a soft spot, or a spike in your water bill, the water has usually already reached further than it looks. C&B Complete Cleaning & Construction provides plumbing leak detection across Delaware and Maryland: we locate the leak, then handle the cleanup.
We use moisture meters, thermal imaging, acoustic listening equipment, and pressure testing to find a leak inside a wall, under a slab, or within a drain line, and to see how far the water has already traveled. Once the leak is located, we extract any standing water, dry the affected area, and document everything. Repairing the pipe, fitting, or fixture itself is a licensed plumber's job.
If you suspect a hidden plumbing leak or already have water damage from one, call (302) 381-9891. We'll locate the source, assess what's affected, and help you understand the next steps.
Signs of a hidden plumbing leak
A few signs tend to point toward a hidden leak rather than a source you can see. An unexplained rise in your water bill without any change in usage is one of the most reliable indicators. Others include the sound of running water when every fixture is off, a musty smell with no obvious source, discoloration or bubbling on a wall or ceiling, flooring that feels soft or slightly warped in one spot, or a water meter that keeps moving even when nothing in the house is using water.
None of these signs confirm exactly where a leak is coming from — they're reasons to call for detection before the damage spreads further. If you're already seeing water damage alongside one of these signs, our plumbing leak water damage page covers that restoration process specifically.
Supply lines, drain lines, fixtures, and pipe leaks
Hidden plumbing leaks come from a range of sources: a supply line feeding a sink, toilet, or appliance; a drain line running inside a floor or wall cavity; a fixture connection that's loosened over time; or a section of pipe inside a wall that's corroded or was never sealed properly. Each type tends to show up differently — a supply line leak often affects the area directly around a fixture, while a drain line leak inside a floor cavity can travel much further before it's noticed.
Because these leaks are hidden by design, we don't assume a space is unaffected just because it looks dry on the surface. A free inspection checks the areas most likely to be affected based on where plumbing runs through the property, not just the spot where damage first became visible.
Detection methods and source confirmation
Confirming exactly where a plumbing leak is coming from is what we do. We use electronic listening equipment to detect the sound of water escaping under pressure, thermal imaging to spot temperature differences caused by moisture, and pressure testing to isolate which line is affected when the leak's location isn't obvious from the surface. Moisture meters tell us how far the resulting damage has spread through walls, flooring, and cabinets.
Together, these tools usually let us pin down a plumbing leak without cutting open walls just to look. Our moisture mapping page covers the damage-mapping side of this process in more depth — a related step that often runs alongside source detection on the same visit.
Restoration after plumbing leaks
Once a leak is found and stopped, our part of the job begins. We extract any standing water, set up drying equipment for affected walls, flooring, and cabinets, and remove materials that can't be dried in place. Equipment runs 24 hours a day for best results, and we track moisture readings throughout rather than guessing when a space is actually dry.
Most drying projects take 3 to 7 days, though a leak that ran unnoticed for a while can take longer, since moisture has often worked deeper into framing and subfloor than a fresh leak would. If your situation turned out to be a sudden pipe failure rather than a slow hidden leak, our burst pipe cleanup page covers that scenario specifically, since the water volume and urgency are usually very different. We document the whole job with photos and moisture readings for your insurance carrier.
When plumbing repair is required
Once we've located a plumbing leak, repairing it — replacing a section of pipe, resealing a fitting, or fixing a fixture connection — is a licensed plumber's job, not ours. We don't perform plumbing repair ourselves; our role is finding the leak and restoring the water damage it caused.
If you don't already have a plumber, we're glad to point you toward getting that piece handled, and we can coordinate timing so our detection and drying work doesn't interfere with their repair. Our water leak detection page has more on how we approach hidden leaks generally, beyond plumbing-specific ones.
Call C&B for plumbing leak detection in Delaware & Maryland
If you suspect a hidden plumbing leak or already have water damage tied to one, call C&B Complete Cleaning & Construction across Delaware & Maryland. We'll locate the leak, inspect what's affected, extract any standing water, dry the area, and document everything, while you work with a licensed plumber on the repair. Our plumbing leak water damage page goes deeper into the restoration side once a leak has already caused damage.
We've served this region since 1986, we're licensed, bonded, and insured (DE 2007223623, MHIC 132085), and an IICRC-certified technician is on every crew we send. We answer 24/7 — call (302) 381-9891 any time, day or night, or send us a request online and we'll follow up within 15 minutes during business hours.




