Leak detection DIY Charlotte NC
A high water bill is a cue to read the meter and check toilets you can already reach. Charlotte Water says the leading cause of a high water bill is a private plumbing leak. Opening a wall is not one of the checks below.
Checks you can do
Start with what you can see and hear. Charlotte Water's fixes and troubleshooting page says to walk the home and notice water running where it should not be.
Where a sprinkler system is installed, that same page says to check the outside hose connections and to test the spray heads.
The U.S. Environmental Protection Agency's Fix a Leak Week page, last updated March 13, 2026, says to check the water meter before and after a two-hour period when no water is being used. If the meter changes at all, that page says you probably have a leak.
The same EPA page says to place a few drops of food coloring in the toilet tank. Color in the bowl after 10 minutes means a leak. Flush as soon as those 10 minutes end so the dye does not stain the tank.
EPA says the average household's leaks can account for more than 9,300 gallons of water wasted every year. Charlotte Water's annual report, current as of July 1, 2025, counts 4,728 water leaks the utility repaired in fiscal year 2025. The 4,728 figure is the utility's repair total. The 9,300-gallon figure is a national household average. Neither number is a map of one house, and neither number is a reason to open a wall.
The EPA page is Fix a Leak Week. Charlotte Water's troubleshooting page is Fixes and troubleshooting, and it does not print a publication date. The repair count is in 2025 At A Glance.
What not to try
These checks stay on the meter, the toilet tank, hose connections, and spray heads. A damp patch behind drywall, above a ceiling, or under a floor is outside them. Gas piping stays shut. Wiring stays covered.
When someone else should search
If the bill is still high after those checks, or the water never shows where you can see it, stop the household search. One route is the Leak detection Charlotte NC page, where another party takes the search. The other route is on the Charlotte Water page: when a property check does not find the leak, dial 311 or 704-336-7600 and ask them to investigate. Their page says that visit reviews the account, average usage, and Charlotte Water's equipment. It does not call the visit free. No fee, visit length, or find rate is stated.
Questions about tracing a leak yourself
Can I follow a leak by opening a wall?
No, a wall, a ceiling, and a floor stay closed while you read the meter, dye-test a toilet, and look for water you can already see.
Does a meter that moves during two quiet hours mean the city main failed?
No, the EPA page treats any change on the meter across a two-hour period with no water use as a probable leak, and Charlotte Water names a private plumbing leak as the leading cause of a high water bill.
Is dialing the utility a way to open a wall?
No, 311 and 704-336-7600 are how Charlotte Water asks you to request an investigation after the property check finds nothing. That investigation is not described as free, and it is not a way to open a wall, a gas line, or wiring.