Why Is My Water Bill So High? 7 Common Causes

Before paying for a plumbing visit, separate a higher dollar amount from higher water consumption. A bill alone cannot identify a leak. This guide helps you compare two bills, check seven possible causes and decide who to contact next.

Compare Two Bills Before Looking for a Leak

Use the current bill and a previous bill from similar conditions. EPA's guide to understanding your water bill explains usage units, rate structures and separate charges. Write down these items side by side:

Example, not a leak threshold: 6,000 gallons over 30 days is 200 gallons per day. A later bill for 6,600 gallons over 33 days is also 200 gallons per day. The billed volume rose 10%, but daily use did not. Convert both bills to the same unit before dividing; one CCF is 748 gallons.

Choose your next check: If daily usage is similar but the price rose, ask the utility about rates and line items. If daily usage rose, review household changes and the checks below. If the reading is marked estimated or adjusted, ask the utility how it was calculated.

1. Running Toilet

A toilet can leak from its tank into the bowl without making much noise. Following EPA's home-maintenance guidance, add a few drops of food coloring to the tank and wait 10 minutes without flushing. Color in the bowl indicates a leak; flush afterward to avoid staining. Ask for a toilet repair assessment if you cannot identify or correct the fault.

2. Hidden Plumbing Leak

Look for damp areas, unexplained water sounds or visible dripping around accessible plumbing. Record where and when you notice the problem. Unexplained meter movement is a reason to investigate, but it does not locate a hidden pipe failure or establish that excavation is needed. Read about Kimco's leak detection service before arranging an assessment.

3. Outdoor Irrigation Leak or Overuse

Check the controller's programmed days and run times, including extra start times. Look for broken heads, pooling or water reaching pavement. EPA's watering guidance recommends adjusting watering for conditions and inspecting equipment. Follow your own utility's current restrictions; one schedule will not suit every Central Texas property. Have an irrigation professional investigate irrigation faults.

4. Leaking Outdoor Faucets or Hose Bibs

Check accessible outdoor faucets and hose connections for dripping when they are supposed to be off. Note whether the water is at the spout, handle or wall connection. Share that location when requesting a repair; a photo can help explain the symptom without guessing which part has failed.

5. Water Softener or Treatment System Malfunction

Regeneration uses water. Record the model, settings and any unexpected drain flow, then compare operation with the manufacturer's instructions. A cycle may explain some flow during a meter check. Ask the installer or a service professional about unexpected operation rather than changing unfamiliar valves or settings.

6. Billing, Reading or Rate Changes

Compare reading dates and actual versus estimated readings, then review the utility's explanation of charges. A longer period, a changed rate or a higher usage tier can change the total. Ask the utility to review a disputed reading and explain meter-testing options and any fee. Meter movement alone does not prove a faulty meter.

7. Seasonal Changes You Forgot About

Write down changes during the actual reading period: guests, extra laundry, pool filling, new landscaping or more watering. Compare with the same season last year when household conditions were similar. If your utility offers daily-use history, use it to see when the increase began rather than relying only on the bill's arrival date.

A No-Use Meter Check: Evidence to Bring to the Call

EPA recommends comparing meter readings two hours apart without using water. Account for automatic uses such as irrigation, ice makers and softener cycles. If you can safely read your own meter, photograph the reading and time, avoid water use, then record the second reading. Ask the utility for help if the meter is inaccessible; do not tamper with utility equipment.

A change suggests continuing use that needs explanation. It does not identify the source. An unchanged reading does not exclude an intermittent leak outside the test period. Keep your notes for the utility or plumber.

Who to Contact and What to Have Ready

Contact your water utility for billing questions, disputed readings, public-side leaks or adjustment policies. Ask what evidence and deadlines apply. Austin Water's high-bill options illustrate a provider-specific process; its rules do not automatically apply to customers of other utilities. Keep repair invoices in case your provider requests them.

Contact a plumber when you have a leaking fixture, visible plumbing damage or ongoing unexplained use after checking scheduled equipment. Have your town, symptoms, reading dates and meter-check notes ready. Ask what the diagnostic visit includes and request the repair scope and price before authorizing work. You do not need to identify the failed part before calling.

Kimco provides scheduled leak detection and plumbing service from Lexington. For service in Manor, Pflugerville, La Grange or a nearby community, call (737) 260-7255 Monday-Friday, 8 AM-5 PM to confirm coverage for your address and the next available appointment. See the full service area.

Sources and Further Checks

The bill comparison uses EPA's water-bill guidance. The toilet and meter checks follow EPA's home-maintenance guidance. For outdoor use, see EPA's watering tips. Confirm rates, reading disputes and adjustment eligibility directly with the utility named on your bill.