Huge Water Bill After a Leak? How Landlords Get a Utility Leak Adjustment

Few things ruin a landlord's month like opening a water bill that is three or four times the usual amount. A cut supply line in a vacant unit, a running toilet nobody reported, or a slab leak under a parking lot can pour thousands of dollars down the drain before anyone notices. The good news: most water utilities have a leak adjustment program, and a well-documented request is often approved. A poorly documented one is often denied on a technicality.

This guide walks through what utilities typically ask for, the mistakes that get requests rejected, and how to build a file that makes approval easy.

How Leak Adjustments Usually Work

Programs vary by city, but the basic idea is the same almost everywhere. If excess water was lost through a leak that you found and repaired promptly, the utility will credit part of the excess usage. Many utilities credit a percentage of the water above your normal usage, such as half of the excess, rather than the entire overage. Sewer charges are sometimes adjusted too, because leaked water that soaked into the ground never reached the sewer.

Nearly every program requires three things:

• Proof the leak was repaired, usually receipts or a plumber's invoice
• The date of the repair, because most programs only accept requests within a set window after the repair (60 days is common)
• A description of what was leaking, meaning the actual fixture or line, not just "a leak"

The most common reason a request is denied is not that the leak did not qualify. It is that the request did not state the repair date or the type of fixture that failed. Read your utility's denial letter carefully: many explicitly invite you to resubmit with the missing details.

Step 1: Document Everything While It Is Happening

The best time to build your leak file is the day you find the leak, not three weeks later when the bill arrives. As soon as you discover the problem:

1. Take photos and video of the leak itself, the water damage, and any saturated ground or flooding outside the building.
2. Photograph the meter before and after you shut the water off. A spinning meter with every fixture off is strong evidence.
3. Write down the timeline: when the leak was found, when the water was shut off, and when the repair was finished.
4. File a police report if the leak was caused by vandalism or theft (copper theft from vacant units is a common culprit).

Step 2: Keep Proof of the Repair, Even If You Did It Yourself

You do not need a licensed plumber to qualify in many programs. If your own maintenance team made the repair over a holiday weekend, the parts receipts are your proof. A receipt for shutoff valves, push-fit fittings or clamps, dated the day of the repair, shows exactly what was fixed and when.

This is where good bookkeeping pays off. If every receipt is logged against the property with a note about what it was for ("shutoff valves, Building 1700"), you can find the receipt in seconds months later. If receipts live in a shoebox or a glovebox, they tend to disappear right when you need them.

Step 3: Show the Before and After

The most persuasive evidence is often your own billing history. Put the leak-period bill next to the first bill after the repair. A sharp drop in usage once the repair was made tells the story better than any letter. If the utility has already approved adjustments on other meters at the same property for the same event, say so and cite the amounts. Consistency is a strong argument.

Step 4: Write a Clear, Complete Request

Keep the request short and organized. A good structure is:

• Account number and service address
• What was leaking: the specific fixture, such as "copper supply lines behind tub/shower valves, cut during a break-in"
• Date discovered and date repaired
• Who repaired it: your staff or a named plumber
• Usage before and after, with dollar amounts
• Attachments: receipts, invoices, photos, police report

If your request is denied, reply to the denial with the missing information rather than starting a new request. Keep any case or reference number in your reply so it attaches to the original file.

Step 5: Prevent the Next One

Vacant units are where leaks do the most damage, because nobody is there to notice. A few habits cut the risk dramatically:

• Shut off water to vacant units at the unit shutoff, or install shutoffs where there are none.
• Walk vacant units on a schedule and log each inspection.
• Compare each month's water bill to the same month last year and investigate any jump right away.
• Secure vacant buildings against copper theft with lighting, cameras and locked mechanical rooms.

How Software Makes This Easier

Property management software will not stop a pipe from bursting, but it makes everything around the leak easier. In iRent, utility bills and repair receipts are logged against the property they belong to, with notes and the receipt image attached. Months later you can pull up every water bill and every plumbing purchase for one property in a single search. Vacant units, make-readies and work orders are tracked in the same place, so you always know which units are empty and when someone last walked them.