Gardendale Plumbing gets called about this most often after a bill arrives that is double the usual one with nothing different about the household.
When usage has not changed and the bill has, water is leaving the system somewhere. The question is only where, and the answer is usually one of a short list.
The most common cause by a distance is a toilet flapper that no longer seals. It runs silently, wastes an extraordinary volume, and costs a few dollars to fix — which is why it is worth ruling out before anything else.
Below: how to confirm there is a leak in half an hour, the usual culprits in order of likelihood, and the ones that need a plumber rather than a trip to the hardware store.
Before hunting for a cause, establish that water is actually escaping:
If the reading moved, you have a leak. If it did not, the bill is a usage or billing question rather than a plumbing one.
To split indoor from outdoor, close the main shut-off at the house and repeat. Movement with the house isolated means the leak is between the meter and the house — a service line, and not a DIY job.
The flapper is a rubber seal that degrades over a few years. Once it stops sealing, water trickles continuously from the tank into the bowl and straight down the drain.
It is frequently silent. The test is food colouring in the tank — if colour appears in the bowl within fifteen minutes without flushing, the flapper is leaking.
A single running toilet can account for the entire difference on a surprising bill, and the part costs a few dollars.
A cracked line, a stuck valve, or a controller that quietly reverted to a default schedule all waste large volumes without anyone noticing, because it happens outside and often at night.
Check the controller schedule and look for a patch of lawn that is greener or soggier than the rest.
Individually small, collectively meaningful. A steady drip is a worn washer or cartridge and is normally a quick repair.
A leaking temperature and pressure relief valve discharges to a drain, so it can run without anything appearing on the floor. Weeping at a tank seam is more visible and more serious.
A break in a line under the foundation runs continuously and is the hardest to spot. The signs are a warm patch on the floor, the sound of running water with everything off, reduced pressure, or damp flooring with no source above it.
This is the one that does damage beyond the bill, because saturated soil under the slab eventually moves. Our leak detection and slab leak page covers finding it.
The run between the meter and the house is your responsibility on most systems, and a leak there can surface as a wet area in the yard or never surface at all. If the meter moves with the house isolated, this is where it is.
Worth ruling these out before paying anyone to look. A bill that doubled the month the sprinklers came on is not a mystery.
Roughly, cheapest first: a toilet flapper is a few dollars and fifteen minutes. A faucet cartridge or washer is a small repair. An irrigation valve or line is modest and usually accessible.
A water heater relief valve is a straightforward repair. A slab leak means locating first, then a spot repair, a reroute, or a repipe depending on what the system looks like. A service line is excavation.
The ordering matters because the cheap causes are also the most common. Working down the list in order is how you avoid paying for a leak search that a dollar part would have solved.
Our plumbing inspections cover the pressure check and the fixture survey, which catches most of this before it shows up on a bill.
Gardendale Plumbing will find what is running and tell you what it takes to stop it, starting with the cheap causes rather than the expensive ones. Call 205-859-7686.
Gardendale Plumbing works throughout Gardendale and North Jefferson County, including Fultondale, Mount Olive, Morris, Warrior, Kimberly, Adamsville, Graysville, Pinson, Center Point, Clay, Trussville, Forestdale & more.