Leak Detection & Repair in Gaithersburg, MD & Washington, DC
Leaks are inconvenient, and if they go unaddressed, they can cause serious damage to a home. James A. Wheat & Sons, Inc performs leak detection and repair in Gaithersburg, Maryland & DC for obvious problems, like a dripping faucet, and leaks that hide behind a wall or above a ceiling for months before anyone notices. Most homeowners do not realize there is a leak until a water stain spreads across the sheetrock, a spot in the carpet stays damp, or a water bill comes in two, three, or even ten times higher than usual.
Call (301) 241-9636 or contact us online to schedule your leak detection and repair service today.
Common Signs You May Have a Hidden Leak
Left alone, a leak that seems minor at first tends to compound. A slow drip under a sink can rot subfloor over time, and a hidden pipe leak behind a wall can feed mold growth long before it becomes visible. James A. Wheat & Sons, Inc has handled leak detection and repair throughout the DC metro area since 1978, using non-invasive methods to find the source of a leak before cutting into a wall or floor unless it is truly necessary. Homeowners should watch for:
- Unexplained bill increase: a water bill that jumps well above your normal usage with no obvious cause.
- Meter still moving: your water meter runs even when every fixture in the home is off.
- Warm spots on the floor: a section of floor that feels noticeably warmer than the rest, which can point to a slab leak.
- Musty smell or mold: a persistent odor or visible mold in one area, especially near a wall or under a sink.
- Low pressure at one fixture: water pressure that drops at a single faucet or shower while the rest of the home is normal.
Why a Real Leak Assessment Beats Guessing in Gaithersburg

Cutting open a wall or floor to search for a leak often means paying for repair work in the wrong spot, and sometimes more than once. A proper assessment locates the source first, using equipment built to trace water through a system rather than guessing based on where a stain happens to show up.
A thorough leak assessment typically includes:
- Water pressure and usage check: compare current water use against historical patterns to confirm a leak is actually present.
- Acoustic and sonic detection: listen for the sound signature of water escaping a pressurized line.
- Moisture and thermal scanning: locate damp areas behind walls, floors, and ceilings without opening them first.
- Camera inspection: run a video line into sewer and drain pipes to see blockages or cracks directly.
- Pressure testing: isolate sections of the system to confirm exactly where a leak originates.
Types of Leaks We Detect and Repair in Gaithersburg and DC
At James A. Wheat & Sons, Inc, we do not stop at water leak repair. We detect and repair both water leaks and gas leaks, so a home or office gets sealed up properly no matter where the leak started.
Water Leaks
Water leaks, even small ones, can have serious effects on a Montgomery County home or office. Our plumbing team uses accurate, non-invasive techniques to pinpoint the source of a leak and repair it before it spreads further. Our water leak repair covers all types of plumbing systems, including:
- Water supply line leaks: repair leaks in the main line feeding the home.
- Faucet, shower, and tub leaks: fix worn fixtures and fittings before they waste more water.
- Toilet leaks: correct a running toilet or a leak at the base of the bowl.
- Well line leaks: locate and repair leaks along a private well’s water line.
- Water heater leaks: address leaks at the tank, fittings, or connections.
- Sewer line leaks: find and correct leaks using camera inspection.
- Broken pipes: repair or replace pipes damaged by corrosion, freezing, or age.
Our technicians also repair leaks in difficult locations, including under concrete slabs and near gas lines. For a suspected sewer line leak, a camera inspection identifies the exact location and cause without digging up the yard first.
Gas Leaks
A gas leak is hazardous and can put a household or workplace at risk within minutes. If you smell gas, extinguish any open flames and leave the building immediately, and treat a hissing sound near a line as a sign to exit right away. Once everyone is safely outside, call 911 first to report the emergency, then call James A. Wheat & Sons, Inc so a technician can locate and repair the leak.
Never attempt to fix a gas leak without professional help. Natural gas is toxic and explosive, and leak detection and repair on a gas line should always be handled by a trained technician.
Leak Questions Homeowners Actually Ask
Why did my water bill suddenly double with no change in usage?
A sudden jump in the water bill, without a change in how the home is used, usually points to a leak somewhere in the system. A running toilet, a slow supply line leak, or an irrigation line leak are common causes, and checking whether the meter moves with everything off is a quick first step.
How can a plumber find a leak without cutting into my walls or floor?
Acoustic detection, moisture scanning, and pressure testing all locate a leak’s source without opening a wall first. Once the source is confirmed, the actual access point for the repair is usually small and targeted rather than a wide search.
What does a warm spot on my floor usually mean?
A warm patch on a floor, especially over a slab, often points to a hot water line leaking beneath it. It is worth having checked promptly, since a slab leak left alone can affect flooring and, over time, the structure underneath it.
Can a small, unnoticed leak actually lead to mold in my home?
Yes. A slow leak behind a wall or under a sink creates the damp conditions mold needs, often well before a stain or smell becomes noticeable. Fixing the leak early, before it feeds ongoing moisture, is the most effective way to keep it from becoming a mold problem.
How do I know if a leak is bad enough to shut off my main water valve?
Any leak producing a steady flow of water that cannot be contained, or one near electrical wiring or a finished ceiling, is worth shutting off at the main valve until a technician arrives. A slow drip from a fixture usually does not require it, but it should still get scheduled for repair.
What Backs Every Leak Repair We Complete
Every leak repair from James A. Wheat & Sons, Inc comes with a straightforward pricing estimate before any work begins, so there is no surprise bill once the job is finished. Technicians train weekly on diagnostic methods and current equipment, which matters on a job where finding the leak correctly is most of the work.
The company also tracks manufacturer recalls and extended warranty notices on the plumbing equipment it services, and stands behind every repair completed. That combination is part of why the company has served Gaithersburg, Maryland, and DC area homes since 1978.
Schedule Your Leak Detection and Repair in Gaithersburg or DC
A leak rarely gets better on its own, and the cost of ignoring one is almost always higher than the cost of finding and fixing it early. James A. Wheat & Sons, Inc has helped homes and businesses throughout the DC metro area handle leak detection and repair since 1978, from a dripping faucet to a hidden line behind a wall.
If you suspect a leak in your Maryland or Washington, DC home, the sooner it gets checked, the less it tends to cost.Â
Call (301) 241-9636 or contact us online to schedule service today.
What To Expect
Discover the Difference
Satisfaction Guaranteed
We stand behind every job we perform, because that’s what it means to be family. Your complete satisfaction is our guarantee.
Upfront
Pricing
You’ll never be stuck with an unexpected bill when your services are complete. We offer upfront, no-surprise pricing, so you can rest assured you’re only paying for the high-quality work you receive.
Trained
Technicians
Our secret to offering the best service in the business is simple. We hire quality people and continually train them to provide the best customer experience possible. We train weekly on service, equipment, diagnosis, and more. You can rest assured that our technicians will bring the industry expertise necessary to exceed your expectations.
Extended
Warranties
We work continuously to keep up with recalls, extended warranties, and notices regarding all plumbing, heating, and AC equipment that we may come in contact with in your home.
Commitment
to Community
We believe that as we grow, so should our community—that’s why we look for every opportunity possible to give back.
Special
Financing
We understand the financial strain that often accompanies new system installation, home remodeling, or unexpected service calls. That’s why we offer special financing to keep your household budget intact. Financing is subject to approved credit