Leak Detection in Knoxville, TN
A water bill that jumped for no reason. The faint sound of running water when every faucet is off. A warm spot on the floor, a musty smell, or a patch of lawn that stays green and soggy in a dry week. These are the signs of a hidden leak, and the longer one runs, the more water and structure it costs you. Alpha Plumbing provides professional leak detection in Knoxville, using non-invasive tools to pinpoint the exact location of a leak before anyone opens a wall, slab, or yard. We find it first, then fix it, so you are not paying to tear up your home chasing a guess. Licensed, upfront pricing, and a free estimate to start.
Professional Leak Detection Services
Guesswork is expensive. Alpha Plumbing locates leaks precisely so the repair is targeted and minimal.
- Non-invasive detection using acoustic and electronic equipment that hears and pinpoints water escaping under floors, slabs, and walls, so we open only what we have to. [confirm equipment]
- Slab leak detection for leaks in the pipes beneath a concrete foundation, one of the most damaging and hardest to find without the right tools.
- Underground and water service line leaks between the meter and the home, the kind that quietly waste thousands of gallons.
- Hidden pipe leaks inside walls, ceilings, and under floors, traced to the source rather than the water stain (which is rarely where the leak actually is).
- Whole-home leak checks when a high water bill has no obvious cause.
- Full-service repair once the leak is found, from a single pipe fix to a repipe, handled by the same team in most cases.
Signs You Have a Hidden Water Leak
- A water bill that climbs with no change in your usage
- The sound of running water when everything is turned off
- Warm or damp spots on the floor (a common sign of a slab leak)
- A musty smell, or mold and mildew appearing on walls or baseboards
- Cracked, bubbling, or stained drywall, paint, or flooring
- Low water pressure with no other explanation
- A soggy or unusually green patch in the yard during dry weather
- The water meter dial moving when no water is being used
A quick test anyone can do: turn off every water fixture and appliance in the home, then check the water meter. If it is still moving, water is escaping somewhere. That is the moment to call for professional leak detection, before the water finds your foundation, framing, or finishes.
Call or text (865) 888-9653 to schedule your service.
How Leak Detection Works
1. Interview and meter check
We review the symptoms, your water bill, and the meter to confirm a leak exists and narrow down the area.
2. Non-invasive location
Using acoustic and electronic equipment, we listen for and pinpoint the exact spot water is escaping, without tearing into the home blindly.
3. Pinpoint confirmation
We mark the precise location and depth so any access is as small and targeted as possible.
4. Clear findings
We show you what we found and explain the repair options in plain language, with upfront pricing.
5. Repair
Once you approve, we fix the leak, whether that is a spot repair, a rerouted line, or a section of repipe.
6. Verification
We confirm the leak is gone and the meter has stopped moving before we consider the job done.
Leak Detection Cost in Knoxville
- Standard leak detection service: $150 to $450
- Slab leak detection (more complex location work): $300 to $600
- Underground or service line leak location: $200 to $550
- Repair cost: quoted separately once the leak is located and its cause is known
The price depends on how accessible the leak is, whether it is under a slab or underground, and how much equipment time it takes to pinpoint. Detection and repair are priced separately for a reason: locating the leak first means the repair is targeted, so you are not paying to open five feet of wall or slab to find one bad joint. A free estimate gets you a clear number before we start.
Areas We Serve in Tennessee
Alpha Plumbing provides leak detection in Knoxville, Gatlinburg, Farragut, Karns, Kodak, Pigeon Forge, Powell, Halls, Sevierville, Corryton, and surrounding East Tennessee communities.
Recent Reviews
Why Precise Leak Detection Saves You Money
The cost of a hidden leak is rarely just the water. A slab leak left running can undermine a foundation. A leak inside a wall can rot framing and grow mold long before it shows a stain. And the old way of finding leaks, opening walls and slabs until you get lucky, can cost more in demolition and repair than the leak itself.
Non-invasive leak detection flips that. By pinpointing the exact location first, Alpha Plumbing keeps the repair small, the damage contained, and the cost predictable. This matters especially in Knoxville’s older homes, where aging galvanized and polybutylene pipe is prone to hidden failures, and in slab-foundation homes where a leak has nowhere to go but into the structure. Finding it fast and finding it exactly is how you keep a small leak from becoming a major repair.
For homes where detection reveals failing pipe throughout, our pipe repair and repiping service and whole-home repipe address the root cause. If a leak has affected a water heater, see our water heater repair page.
Frequently Asked Questions
How much does leak detection cost in Knoxville?
A standard leak detection service typically runs $150 to $450, with slab and underground leaks on the higher end because they take more equipment time to pinpoint. [CONFIRM] Detection and repair are priced separately, and a free estimate gives you the exact number before we begin.
How do you find a leak without tearing up my house?
We use non-invasive acoustic and electronic equipment that detects the sound and signature of water escaping under floors, slabs, and walls. That lets us mark the exact location and depth, so any access we make is small and targeted rather than exploratory demolition.
What is a slab leak and how serious is it?
A slab leak is a leak in the water pipes running beneath your concrete foundation. It is serious because the water has nowhere to go but into the slab and the soil beneath it, which over time can crack flooring, spike your water bill, and even undermine the foundation. Early detection is what keeps it from becoming a structural problem.
How do I know if I have a hidden leak?
Common signs are a rising water bill with no change in usage, the sound of running water when everything is off, warm or damp spots on the floor, a musty smell, and low water pressure. A quick check: shut off all water and watch the meter. If it keeps moving, you have a leak.
Can a small leak really cause that much damage?
Yes. A leak of just a slow drip can waste thousands of gallons a year, and one hidden inside a wall or under a slab can rot framing, grow mold, and damage finishes long before you see a visible stain. The water damage almost always costs more than the leak itself, which is why finding it early matters.
Do you repair the leak once you find it?
Yes. In most cases the same team that locates the leak also repairs it, whether that is a single pipe fix, a rerouted line, or a section of repipe. Because we pinpoint the leak first, the repair is as targeted and minimal as possible.
Do you offer free estimates for leak detection?
Yes. We provide a free estimate and upfront pricing before any work begins, so there are no surprises on detection or on the repair that follows.
Get a Free Quote From Alpha Plumbing Today
Alpha Plumbing is licensed, upfront about pricing, and free of hidden fees. A hidden leak only gets more expensive the longer it runs, so if your bill is climbing or something feels wrong, professional leak detection in Knoxville finds it fast and fixes it right. We will show you the exact cost before we start.
Call or text (865) 888-9653
