Leak Detection in Meridian, ID
Leak detection is the work of finding exactly where water is escaping from a pipe you cannot see, inside a wall, under a floor, or underground, so only the spot that leaks gets opened. Most Meridian callers do not know where the leak is. They only know something is wrong because the bill went up or a stain appeared.
We start with the simple tests and move to equipment only when needed, so you pay for finding the leak, not for guesswork.
My water bill went up and I can't find a leak. What now?
This is the most common way a hidden leak shows itself. Nothing is dripping, no ceiling is stained, but the bill from the City of Meridian is higher than last month with no change in how the household uses water.
The leak could be a running toilet, a line under the house, the service line in the yard, or a sprinkler zone that never fully shuts off. The steps below narrow it down before anyone brings in equipment.
Larger lots on the edges of Kuna come with longer service lines, which is where slow underground leaks hide the longest.
Long service lines on larger Ada County lots south of Meridian, and older lines near Old Town, are where slow leaks tend to hide longest.
The meter test you can do in ten minutes
Your water meter is the best leak detector you own. It usually sits in a covered meter box near the street.
- Turn off every faucet, the dishwasher, the washer, and the sprinkler system.
- Open the meter box lid and look at the dial and the small leak indicator.
- If the indicator is turning, water is flowing somewhere.
- Close your main shutoff at the house and check again.
- If it stops, the leak is inside the house. If it keeps moving, the leak is between the meter and the house.
If you are unsure which side of the meter a problem is on, call Meridian Water at 208-888-5242. Leaks between the meter and your house are the owner's responsibility and are covered on our water line repair page.
Rule out the easy leaks first
Before paying for detection equipment, check the places that leak most often in any home.
- Put a few drops of food coloring in each toilet tank. Color in the bowl after 15 minutes means a leaking flapper.
- Listen for a toilet that refills on its own between flushes.
- Check under every sink and behind the washing machine for damp cabinet floors.
- Look at the base of the water heater and the relief valve discharge pipe.
- Walk the yard for a green, soggy strip in dry weather, which can point to the service line or a sprinkler leak.
A running toilet can waste far more water than most people expect. If the dye test finds one, toilet repair is usually a quick fix.
How a hidden leak gets pinpointed
When the simple checks come up empty, these tools let a plumber find the leak with little or no demolition.
| Method | How it works | Best for |
|---|---|---|
| Pressure test | Isolates sections of piping and watches for pressure drop | Confirming which part of the system leaks. |
| Acoustic listening | Ground microphones pick up the sound of water escaping a pressurized pipe | Lines under floors, slabs, and yards. |
| Thermal imaging | Shows temperature differences from wet or warm areas | Hot water leaks and wet spots in walls and ceilings. |
| Moisture meter | Measures dampness in drywall, wood, and flooring | Mapping how far water has spread. |
| Line tracing | Locates the path of buried pipe | Finding the service line or a sprinkler main. |
Methods used depend on the pipe, its location, and the symptoms.
Once the leak is marked, you get a clear repair recommendation and price. Only then is the wall, floor, or yard opened at that spot.
Where leaks tend to hide in Meridian homes
In homes built over crawl spaces, a leaking supply line can drip onto the soil for months before anyone notices. The usual clues are a musty smell, higher humidity in the house, or a meter that never stops.
Garages hold the water heater and laundry lines in many Meridian homes. A slow leak at a fitting there may only show up as a damp spot under stored boxes.
Outdoors, sprinkler systems are a frequent source of high bills. A zone valve that does not fully close, or a cracked line after a freeze, can run all night. If your sprinklers are on city water, that shows up on your meter.
What affects the cost of leak detection
Detection is priced separately from the repair, because finding the leak and fixing it are different jobs.
- How much of the system has to be tested to isolate the leak.
- Which equipment is needed, from a simple pressure test to acoustic and thermal work.
- Access to crawl spaces, ceilings, and yard lines.
- Whether the repair is done on the same visit.
- Emergency timing if water is actively damaging the home.
Call (208) 679-8357 with what you have noticed, and we will explain the likely approach and price before starting.
Hunting for a hidden leak in Meridian?
Call for detection that finds the spot before anything is torn out.
Leak detection questions
How do I know if I have a hidden leak?
Turn off all water and watch the meter's leak indicator. If it moves, water is going somewhere. Then close the main at the house to see which side of it the leak is on.
Will you have to tear out walls to find the leak?
Usually not. Pressure testing, acoustic listening, and thermal imaging let the plumber pinpoint the spot, so only a small area is opened for the repair.
Is a leak between the meter and my house my responsibility?
Yes. The City of Meridian maintains lines in the public right of way. The line from the meter to your house is the owner's responsibility.
Can a sprinkler leak raise my water bill?
Yes, if your sprinklers run on city water. A zone that does not shut off fully or a cracked line can use a lot of water overnight.
Do you find leaks for property managers?
Yes. We regularly work with landlords and managers. Tell us who approves the work when you call.
How long does leak detection take?
Simple cases take an hour or so. Leaks under a slab or in a long yard line can take longer to isolate and pinpoint.