The signs, from most to least obvious
Hidden leaks tend to give themselves away indirectly. Any one of these is worth a closer look, and two together is a strong signal.
- A water bill that rises with no change in how much you use.
- The sound of running or trickling water when every fixture is off.
- A warm spot on a floor, which can point to a hot-water line leaking under the slab.
- Musty smells, staining, or bubbling paint on a wall or ceiling.
- A patch of lawn or a flowerbed that stays green and soft when the rest is dry.
- Low water pressure that has crept in gradually rather than all at once.
The ten-minute meter test
This is the check a plumber starts with, and you can do it yourself before you ever call. It works because your water meter measures everything flowing into the house.
- Turn off every fixture and water-using appliance in and around the house.
- Find your water meter, usually in a box near the street or where the line enters, and read it or note the position of the leak indicator dial.
- Wait about fifteen minutes without using any water at all, then read it again.
- If the reading moved, water is going somewhere with everything off, which means a leak.
- To split indoor from outdoor, close the main shutoff to the house and repeat; if the meter still moves, the leak is on the line between the meter and the house.
Why hidden leaks cost more than they look like they should
The reason leak detection is worth doing well is that the water is the cheap part. A pinhole in a supply line behind drywall can run for weeks before anyone notices, and the damage it does to framing, insulation and flooring is what actually costs money. Finding the leak precisely, so only the right small section is opened, is far less destructive and less expensive than chasing it blind through drywall and concrete.
Greeley adds two local wrinkles. Hard water, around 7.2 grains per gallon here, scales and thins older supply lines over time, and homes near downtown carry more of that older pipe. And the expansive clay under Weld County moves foundations and buried lines season to season, which is a common reason a slab or yard-side line develops a leak in the first place.
How leaks get found without tearing up the house
Modern leak detection is mostly non-destructive. Acoustic equipment listens for the specific sound a pressurized leak makes and traces it to a point. Pressure testing isolates a section of pipe and watches whether it holds. Thermal and moisture tools read where water has traveled through a floor or wall. Between them, a leak can usually be pinned to a spot before anyone opens anything.
That precision is the whole value. When the location is known within a small area, the repair is a targeted fix rather than exploratory demolition, and that is the difference between a morning of work and a project. If the trail leads under the foundation, it becomes a slab leak, which has its own repair options worth understanding.
What you can do first, and when to call
Run the meter test, check the obvious spots, and note anything you find; that alone tells you whether you have a leak and roughly where. What the test cannot do is pinpoint a leak inside a wall or under a slab, or tell clean supply water from something worse. When you have confirmed a leak but cannot see it, that is the point to call for leak detection in Greeley rather than start opening walls. If the leak has already done damage, drying it out comes into the picture too.
Catching it early is the whole game
Almost every leak is cheaper to fix the sooner it is found, because the repair itself is usually minor; it is the time spent leaking that runs up the cost. Reading your bill each month, listening for running water at night, and glancing at floors and walls for stains are free habits that catch most leaks while they are still small.
If your bill jumps, do not wait for a puddle to prove it. A jump with no change in use is often the only warning a hidden leak gives, and acting on it is what keeps a pinhole from becoming a rebuilt wall.
| What you notice | Likely source | Next step |
|---|---|---|
| Bill up, use unchanged | A leak somewhere on the system | Run the meter test |
| Warm spot on the floor | Hot line leaking under the slab | Slab leak detection |
| Running water, all off | Pressurized supply leak | Meter test, then acoustic locate |
| Green patch in dry yard | Buried supply or irrigation line | Isolate indoor vs outdoor at the meter |
| Musty wall or ceiling | Slow leak inside the wall | Moisture read and locate |
If you would rather have it looked at than work through it yourself, that is what we are here for. Call and describe what is happening, and you get a real arrival window and a quote before any work starts.