If your water bill is suddenly high and nothing about your habits has changed, a hidden leak is the most likely cause. Common culprits include running toilets, dripping fixtures, irrigation lines, and leaks under slabs or inside walls. A billing error or an estimated meter reading is the other common explanation. A two-hour meter test tells you which one you’re dealing with.
The bill usually arrives on an ordinary Tuesday. Same household, same routines, and the total has doubled. Most people call the utility first. The faster move is to walk out to the meter.
Is It a Leak or a Billing Problem?
Compare gallons, not dollars. If your gallons used jumped, water is going somewhere. If gallons held steady but the total rose, the cause is a rate change, a longer billing period, or an estimated reading.
Look for the words “estimated” or “est.” next to the reading on your bill. An estimated bill followed by an actual reading can land a few months of use on a single statement. Also check how many days the billing cycle covered, since a 35-day cycle costs more than a 28-day one for the same habits.
How Do You Test Your Water Meter for a Hidden Leak?
Turn off every faucet and water-using appliance, then write down the meter reading. Check it again two hours later without using any water. If the number moved at all, you probably leak.
Many meters also have a small leak indicator, often a triangle or star-shaped dial. If it turns while nothing in the house is running, water is flowing somewhere.
To narrow it down, close your home’s main shutoff valve and watch the meter again. If it still moves, the leak is in the service line between the meter and the house. If it stops, the leak is inside.
What Are the Most Common Hidden Leaks?
Worn toilet flappers, dripping faucets, and leaking valves cause most household leaks. After those come irrigation systems, outdoor spigots, water softeners stuck in a cycle, and leaks under the slab.
The EPA estimates that the average household’s leaks waste more than 9,300 gallons a year. Nine percent of homes lose 50 gallons or more every day. Most of that water disappears without a sound.
To check a toilet, add a few drops of food coloring to the tank. If color shows up in the bowl within 10 minutes, the flapper is leaking. Flush right away so the dye doesn’t stain.
Don’t overlook the water heater. A relief valve that drains into a floor drain or out through an exterior wall can run for weeks without anyone noticing.
Did Your Electric Bill Go Up Too?
If your water bill and your electric bill both jumped in the same month, suspect a hot water leak. Every gallon that escapes from a hot water line is a gallon your water heater has to reheat, so you pay for the water and then pay again for the energy.
This is the leak we see homeowners miss most often. A pinhole in a hot water line under the slab can run for months. The only clues might be a warm patch on the floor, a water heater that seems to run constantly, or both bills climbing together.
To test it, close the cold water valve at the top of the water heater and repeat the meter test. If the meter stops moving, the leak is somewhere on the hot side of the plumbing.
With an electric water heater, the pattern is especially clear because the extra reheating shows up directly on your power bill. If the electric bill stays high after you fix the leak, have the water heater’s circuit, elements, and thermostats checked. Our electrical troubleshooting and repairs cover that side of the problem.
What Should You Do About the Bill?
Fix the leak, keep the repair receipt, and ask your water utility whether it offers a leak adjustment. Some utilities credit part of a bill caused by a documented, repaired leak. Policies vary, so ask before you pay a disputed amount.
Many utilities also calculate sewer charges from your metered water use. That means a leak can raise two line items on the same bill. Ask whether any adjustment covers the sewer portion too.
Who Should You Call?
Call a plumber for the leak itself, whether it’s in a toilet, pipe, slab line, or water heater tank. Call an electrician if leaking water has reached outlets, wiring, or the water heater’s electrical compartment, or if your power bill stays high after the plumbing is fixed.
Water and electrical components share space under sinks, behind water heaters, and in basements. After a leak, wet outlets or corroded connections need an inspection before you go back to normal use.
Bray Electrical has served North Atlanta since 2004, including Dunwoody, Roswell, Alpharetta, and Johns Creek. If a leak has touched your wiring or your power bill won’t come back down, request a free estimate with upfront pricing.
