Leak Detection and Repair in Metro Atlanta
Licensed, insured, and upfront on price. A&G Plumbing and Drain handles leak detection and repair for homeowners and property managers across Greater Metro Atlanta.
Hidden Leaks
Hidden Water Leak Detection in Metro Atlanta
Most hidden leaks announce themselves on the water bill long before you see a drop. A&G Plumbing and Drain locates leaks behind walls, under floors, and beneath concrete slabs for homeowners across Metro Atlanta, then repairs them with a price you approve first. The goal is simple: find the leak before anyone cuts drywall or breaks concrete to look for it. If you can already see where the water is coming from, start with our plumbing leak repair page instead.
Signs of a Hidden Water Leak
- A Water Bill That Jumped: If your habits have not changed but the bill has, a continuous leak is the usual cause.
- The Sound of Running Water: A faint hiss or trickle when every fixture and appliance is off.
- Warm Spots on the Floor: A hot water slab leak often warms the concrete and flooring above it.
- Musty Smells or Peeling Paint: Moisture trapped behind drywall shows up as damp odors, bubbling paint, or soft baseboards.
- A Meter That Keeps Moving: If the water meter turns with everything in the house shut off, water is escaping somewhere.
- A Soggy Patch in the Yard: One spot of lawn that stays wet between rains can mean the buried service line is leaking underneath it.
How We Locate a Leak
We start by confirming the leak is real and narrowing down which line is losing water: hot or cold, inside or underground. Then we work to locate the leak before any cutting or digging starts, so the repair opening is small and in the right place. Slab leaks in particular used to mean tearing up floors on a hunch. Locating first keeps the disruption low. Our post on slab leaks in Atlanta homes explains the warning signs in more detail.
Repair Options: Spot Repair, Reroute, or Repipe
Once we know where the water is going, we lay out the options in plain language. A localized spot repair replaces the failed section of copper or PEX. A reroute runs a new line through the attic or walls so the damaged slab section is abandoned entirely. If pinhole leaks keep showing up in aging copper, patching one section at a time may just move the problem a few feet down the pipe, and whole home repiping becomes the honest recommendation. We also handle underground leaks on the main water line between the meter and the house.
What Leak Detection and Repair Costs
Every leak is different, so we do not quote guesses over the phone. We diagnose first, then you approve the price before we start. If we uncover a hidden problem mid-job, we stop and get your approval before anything that changes the price.

The Water Meter Test You Can Do Right Now
Wondering if the meter is running when everything is off? Turn off every faucet, appliance, ice maker, and irrigation zone, then open the meter box near the street and watch the small flow indicator. Wait 15 to 30 minutes without using any water. If the indicator moves or the reading changes, water is leaving your system somewhere. That is exactly the kind of confirmed mystery we locate. A silently running toilet is the other frequent culprit, and our post on why toilets run shows how to rule one out first.
Water Coming Through a Ceiling
A ceiling stain that grows, or water actively dripping from a ceiling below a bathroom, deserves a same-day call during our business hours. Shut off the water at the main valve if it is safe to reach, keep people away from any sagging drywall, and resist the urge to open the ceiling yourself. Locating the source first, supply line, drain, or tub overflow, keeps the repair opening small and in the right place.
Leak Detection FAQs
How do you find a leak under a concrete slab?
We narrow the leak down by isolating lines and testing, then locate the escaping water without tearing up the slab to look for it. That way we know where to open the floor before any concrete is touched.
Does homeowner’s insurance cover water leak repairs?
It depends on your specific policy. Check directly with your insurer to understand what is and is not covered before work begins.
Is a high water bill always a hidden leak?
Not always. Summer lawn watering explains plenty of high bills in Metro Atlanta. But a sudden, unexplained spike is a common sign of a concealed leak. A quick check: turn off every fixture and appliance, then look at your meter. If it is still moving, call us. A silently running toilet is another frequent culprit; our post on why toilets run shows how to spot one.
Can you repair the leak on the same visit you find it?
Often, when the line is accessible and the fix is a straightforward section replacement. Bigger jobs like reroutes are scheduled after you approve the price. Either way, nothing starts until you have said yes to a number.
Chasing a mystery leak? Call A&G Plumbing and Drain at (770) 627-4421, Monday through Friday, 9 AM to 5 PM, or request service online and we will schedule a look.
Leak detection near you
How your service works
- Schedule. Call or text (770) 627-4421, or request service online. We answer Mon-Fri, 9 AM to 5 PM, with same-day visits when the schedule allows.
- We inspect and quote. Your technician looks at the problem in person and gives you a clear price before any work begins.
- You decide. Work starts only after you approve the price. If we spot a separate issue, we price it separately and the decision stays yours.
Plumbing problem?
Call or text now, or request service online, and we'll get you on the schedule. We offer same-day visits during business hours.
(770) 627-4421 Text Us Request ServiceOpen Mon-Fri, 9 AM to 5 PM
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Licensed & insured · Family-owned since 2006
Upfront pricing
Get an upfront price
Tell us what you need and we'll get back to you with the next step. You approve the price before we start. If we uncover a hidden problem, we stop and get your approval before anything that changes the price.
Prefer to talk? Call or text (770) 627-4421 during business hours, Mon-Fri, 9 AM to 5 PM.
A&G Plumbing and Drain
Licensed & insured in Georgia. Family-owned in Marietta since 2006.
