High Water Bill but No Visible Leak? What to Check First
A bigger water bill does not tell you where the problem is. First compare the recorded water use and billing dates, then account for automatic water use and look for signs of a leak. If water keeps flowing when nothing should be using it, arrange an investigation even if the floors and yard look dry.
If water is actively damaging your home, get help promptly. Keep clear of water near electrical equipment. Use your known, safely accessible household shutoff if you can do so safely; do not force an unfamiliar valve or dismantle utility equipment. Our emergency water-shutoff guide explains the preparation and limits.
1. Compare water use, not just the total due
Put the current bill beside a previous comparable bill. Note the reading dates, billing days, reported consumption and units. Separate the water charge from sewer, trash, fees and any prior balance. Ask your utility to explain anything that does not match.
Try this comparison: divide gallons by billing days. Illustration only: 9,000 gallons across 30 days and 10,500 gallons across 35 days both average 300 gallons a day. The second period contains more water use, but the daily average is unchanged. This calculation does not verify a meter reading or explain every charge.
Local billing methods matter. Frisco bases its sewer charge on winter water consumption and recalculates it annually, so a higher sewer charge may not reflect that month's water use. Check your own provider's rules. Frisco utility FAQs.
2. Account for water use while you are away
Write down irrigation schedules, pool filling, and appliances or treatment systems that can operate unattended. Check the controller's actual program, including extra start times, rather than relying on the schedule you remember setting. Compare any available usage history with times those systems ran.
If irrigation is the concern, request an appropriate system check. Frisco offers sprinkler-system checkups through its water-conservation program. Confirm eligibility and the current request process with Frisco's water-conservation program.
3. Check toilets before buying replacement parts
For an ordinary tank toilet, add a few drops of food coloring to the tank, wait 10 minutes without flushing, and check the bowl for color. Flush afterward to reduce staining. Color passing into the bowl indicates leakage, but the test alone does not identify which part needs replacement. EPA leak-check guidance.
Use our running-toilet guide to compare symptoms before ordering a flapper or fill valve. A toilet can lose water without leaving a puddle on the floor.
4. Observe the meter when no water should be running
If you can safely read your meter and your utility permits access, record it before and after a two-hour period with no household or automatic water use. A change is a reason to investigate. Ask your utility for help if the display, units or access are unclear. EPA's meter-check guidance.
Do not reach into a flooded or obstructed meter box. See our separate guide to water in the meter box if that is what you find.
A meter reading cannot locate a leak by itself. A quiet result also cannot establish what happened earlier in the billing period or rule out an intermittent problem. Note exactly when you checked and whether any equipment could have used water.
5. Contact the right person with useful observations
Ask the utility about unexplained charges or a questionable reading. For unexplained ongoing use or hidden-plumbing symptoms, request professional leak detection. A bill total or a photograph alone cannot identify a buried pipe problem.
Your water-bill checklist
- Bill comparison: reading dates, units, gallons, number of billing days, and which charge changed.
- Automatic use: irrigation program, recent filling, and equipment that can run unattended.
- Observations: time of each meter reading, whether anything was using water, and toilet dye-test results.
- Symptoms: new dampness or an unexplained running-water sound, including when it happens.
- Previous work: repair dates, what was checked, and available receipts.
Keep account numbers and complete bills private. Share them directly with the utility or service professional when needed, rather than posting them in a neighborhood comment.
Can you get a water-bill adjustment after a leak?
Keep repair documentation and promptly ask your provider about its current adjustment rules. The Colony has an occupied-residential application with eligibility limits, repair evidence and city verification. It is not an automatic refund of all excess charges. Read the City of The Colony's application and policy instead of assuming a neighbor's outcome applies to you.
Need help with unexplained water use?
Sergeant Plumber Corp. provides leak-detection services in The Colony and surrounding North Texas communities. Tell us what changed, what you have observed, and whether water is currently causing damage so we can discuss an evaluation.
Call (972) 595-4431Text usRequest service
After the cause is resolved: consider monitoring
The bill comparison does not require buying a product. If you later want alerts about water leaks, compare what a spot alarm can detect with what a flow-monitoring system measures.
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