Serving Wichita Falls, Wichita, Archer, Clay and Wilbarger counties Requests taken 24 hours a day · (940) 308-0202
Call (940) 308-0202

Requests taken 24 hours a day

Plumbing Guides

Why Is My Water Bill Suddenly So High

July 23, 2026 · 7 min read

If your water bill has jumped and nothing about how your household uses water has changed, the near-certain explanation is that water is escaping somewhere you cannot see. The good news is that you can confirm it yourself in fifteen minutes, for free, before anyone comes out.

The meter test proves it in fifteen minutes

This is the same first step a plumber takes, and doing it yourself means you arrive at the conversation with a fact rather than a suspicion.

  • Turn everything off. Every tap, both toilets settled, the dishwasher and washing machine off, the ice maker off, and any irrigation off. Anything that draws water automatically has to be included or the test is meaningless.
  • Find the meter. In most Wichita Falls homes it is in a box near the street, under a metal or plastic lid at the property line.
  • Watch the leak indicator. Most meters have a small triangular or star-shaped dial that spins at even a tiny flow. If it is turning with everything off, water is escaping somewhere.
  • Or take two readings. Note the number, wait thirty minutes without using any water, and read again. Any change confirms a leak.
Narrow it down. Close the main shutoff at the house and repeat the test. If the meter still moves, the leak is between the meter and the house, out in the buried service line. If it stops, the leak is inside, and in a slab home that often means under the concrete.

The usual culprits, cheapest first

Before assuming the worst, rule out the common and inexpensive causes:

  • A running toilet. The single most common cause and the easiest to miss, because a leaking flapper wastes water silently around the clock. Add a few drops of food colouring to each toilet tank, wait twenty minutes without flushing, and if colour appears in the bowl, that flapper is leaking. It is a cheap part and a quick toilet repair. Check every toilet in the house before assuming anything more serious.
  • A dripping tap or fixture. A steady drip wastes a surprising amount over a year, and on the hot side you are paying to heat it too.
  • Irrigation. On a larger lot this is the classic answer, and it hides because a sprinkler fault only leaks while the system runs. A meter test on a quiet afternoon shows nothing. Isolate the irrigation at its own valve and compare a full day's readings with it on and off.
  • A water softener stuck regenerating. A softener that has jammed in its regeneration cycle can send water to the drain continuously. Worth checking if you have one.

When it is a hidden leak

If the meter test says water is escaping but you cannot find a running toilet, a dripping tap or an irrigation fault, the leak is hidden, and that is a different job. It could be in the buried service line, inside a wall, or under the slab.

This is where you stop guessing and get it located properly. Professional leak detection uses acoustic listening and thermal imaging to pinpoint the leak without opening anything, so that any repair goes to one specific place rather than turning into an exploratory demolition. Opening walls to go looking is the most expensive way to find a leak there is.

The one you should not ignore

In Wichita Falls, a bill that climbs with nothing visible is often a slab leak, because most homes here sit on a concrete slab with the supply lines running underneath. The water goes straight into the ground under the house, so you pay for every gallon and see none of it. The other clues are a warm patch on the floor if it is the hot line, and the sound of running water when everything is off.

A slab leak is one of the few plumbing problems where waiting reliably makes it worse. The escaping water keeps eroding the opening, so the flow increases, and under the slab it washes out or swells the soil supporting the foundation. What starts as a plumbing repair can become a foundation problem. If the meter test points inside and you have any of those clues, treat it as worth locating sooner rather than later.

Questions

High Water Bill Questions

How do I check for a hidden water leak?

Use the meter test. Turn off every fixture and appliance that uses water, including the ice maker and irrigation, then watch your meter's small leak indicator dial. If it moves with everything off, water is escaping. For confirmation, note the reading, wait thirty minutes without using any water, and read again. Any change proves a leak. To narrow it down, close the house shutoff and repeat: still moving means the leak is in the buried line, stopped means it is inside.

What is the most common cause of a high water bill?

A running toilet, and it is the easiest to miss because a leaking flapper wastes water silently and continuously. Test each toilet by adding food colouring to the tank and waiting twenty minutes without flushing. If colour appears in the bowl, that flapper is your leak. It is a cheap part and a quick fix, and it is worth checking every toilet in the house before assuming the problem is anything bigger.

My meter test passed but the bill is still high. Why?

Look at things that run intermittently rather than constantly, because a snapshot meter test will not catch them. An irrigation valve that only weeps while the system runs, a pool auto fill topping up, or a water softener stuck in a regeneration cycle can all add up over a billing period while showing nothing on a quiet afternoon. Isolate each one at its own valve or supply and compare readings with it enabled and disabled.

Could a high water bill mean a slab leak?

Yes, and it is common here because most Wichita Falls homes sit on a concrete slab. A slab leak sends water straight into the ground under the house, so the bill climbs with nothing visible anywhere. Warm spots on the floor and the sound of running water with everything off are the other clues. It needs acoustic or thermal leak detection to pinpoint before any concrete is cut, and it is worth acting on quickly because a slab leak reliably gets worse if left.

Related

You Might Also Need

Need a Plumber in Wichita Falls?

Tell us what is happening and we will connect you with a licensed Wichita Falls plumber. Requests are taken around the clock, seven days a week.

Call Now Get Connected