If your water bill climbed and nothing in the household changed, a hidden leak is one of the first things to rule out. A running toilet, a slow pipe leak or a dripping irrigation line can waste a lot of water without leaving a visible puddle. The good news is that a simple meter check can tell you whether water is moving when nothing is on.
Start with the steps below. If the meter shows flow with everything off, or if you find damp spots, call (714) 750-8637 and a licensed plumber can be sent to find the source.
A ten minute meter test
This test needs no tools beyond a flashlight. Do it when no one is using water.
- 01
Turn off everything
Make sure no taps, appliances, irrigation or ice makers are running. Check that no one flushes during the test.
- 02
Find the water meter
It is usually in a box near the curb or the front of the property. Lift the lid carefully and check for insects or debris first.
- 03
Read the dial or leak indicator
Many meters have a small triangle or dial that spins when any water is moving. If it turns with everything off, water is flowing somewhere.
- 04
Wait and recheck
Wait 10 to 15 minutes without using water, then read again. A change on the dial confirms a leak on your side of the meter.
The usual places a hidden leak hides
Once the meter test says water is moving, these are the common sources to look at.
- A running toilet. A flapper that does not seal lets water trickle from the tank to the bowl. Add a drop of food coloring to the tank. If color shows in the bowl without flushing, the flapper leaks.
- A leaking faucet or showerhead. Slow drips add up, especially on the hot side, so check them all.
- Irrigation lines and sprinklers. A broken head or a cracked line can leak under the lawn for weeks without obvious signs.
- Pipes in the wall or under the floor. Pinholes, failed joints and corroded sections can leak inside a wall or beneath a slab.
- The water heater and its connections. Check the base and the supply lines for moisture or rust.
What the meter and the symptoms tell you
Match what you see to the likely next step.
| What you see | What it suggests | Next step |
|---|---|---|
| Meter moves, everything off | Leak between the meter and fixtures | Call a plumber for leak detection |
| Meter still, bill is up | Higher use or a billing change | Review habits and contact your utility |
| Toilet dye shows in the bowl | Leaking flapper | Replace the flapper or valve |
| Damp patch in lawn or foundation | Possible supply line or slab leak | Call for leak detection |
| Warm spot on the floor | Possible hot water line leak under the slab | Call right away |
Several leaks can exist at once. A plumber checks the whole system, not just one fixture.
Who to call about a Placentia water bill
Golden State Water lists a Placentia service area, and the Yorba Linda Water District serves roughly one third of Placentia, so check your bill to see which utility you have. Golden State Water's customer line is 1-800-999-4033. Ask your utility about the meter reading, your usage history, and whether it offers a leak alert. Once a leak is found, the repair is made to the California Plumbing Code, Title 24, Part 5, which follows the Uniform Plumbing Code (UPC).
Do not rely on a bill figure alone. Rates, billing cycles and seasonal use all change the total, so compare the usage numbers rather than the dollars. If the meter test shows a leak on your side, a leak detection visit can locate it without digging blindly. For homes just east of the city, the Yorba Linda plumber page covers service there.
What to do when a suspected leak turns urgent
Most high bill leaks are slow. A few signs mean water is escaping fast or causing damage.
Call the 24/7 line at (714) 750-8637 if you notice any of these:
- The meter runs fast with everything off. A fast spin means a significant leak.
- Water appears at the foundation, in a wall, or on a floor. The leak may be damaging the structure.
- The floor feels warm or you hear running water in a quiet house. That can point to a hot line under the slab.
- Water pressure suddenly drops. A major break can reduce pressure at every tap.
Shut off the main valve while you wait. If you cannot find it, the dispatcher can walk you through the options. A slab leak repair may be needed if the leak is under the floor.
What a leak detection visit looks like
A plumber starts with the meter and pressure checks, then narrows the search with listening equipment and thermal tools that find water without opening walls first. Once the leak is located, you get a clear price before work starts.
Pinpointing the source first limits the opening needed and the repair cost. It also confirms whether one leak or several are behind the bill.
Questions about a high water bill in Placentia
Turn off all water, then check the meter. If the dial or leak indicator moves, water is flowing somewhere. A damp patch, warm floor, or the sound of running water are other signs.
Check your bill to see whether Golden State Water or the Yorba Linda Water District serves your address. Golden State Water's line is 1-800-999-4033. A plumber handles leaks on your side of the meter.
Yes, a flapper that leaks can waste water all day without a sound. A dye test in the tank shows whether it is the cause.
Generally the property owner is responsible for pipes after the meter. Ask your utility to confirm where its responsibility ends.
Often yes. Listening and thermal tools locate leaks before any digging, so the opening is as small as possible.
Yes. The line at (714) 750-8637 is open 24/7, and same-day appointments are offered when available.