A sudden jump in the water bill is one of the most common first signs of a hidden leak. A running toilet, a failed supply line or a slab leak under the floor can waste a lot of water with no stain to see.
This guide is for Rosedale, NY homeowners. Finding the source is a plumber's job, and the damage it causes is ours to dry, as in slab leak water damage and pipe leak cleanup work. The NYC Department of Environmental Protection (DEP) also runs a Leak Forgiveness Program that may reduce a bill after a repair.
A simple leak hunt
Do this before calling anyone.
- Turn off all water use inside and outside the home.
- Read the meter, wait an hour, then read it again.
- If the number moved, water is leaking somewhere.
- Check toilets by adding a few drops of food coloring to the tank and waiting without flushing.
- Look under sinks, around the water heater and at hose bibs.
- Check the lawn or sidewalk for soft or wet ground near the service line.
- Call a licensed plumber with your findings.
A moving meter with everything off is a strong sign of a leak.
What to do when the bill jumps
These steps help you confirm a leak without making it worse.
- Turn off all water and check whether the meter still moves.
- Look for wet spots under sinks and around the water heater.
- Do not dig near the service line without calling a licensed professional.
- Keep your bill and meter readings together.
- Photograph any damp area before it is dried.
Wet wall or floor from a leak?
Call and we assess it.
Likely sources of a hidden leak
Common culprits in older Queens homes.
| Source | Clue | Who fixes it |
|---|---|---|
| Toilet flapper | Faint trickle sound, color seen in bowl | Homeowner or plumber |
| Supply line | Damp cabinet or wall | Licensed plumber |
| Water heater | Pooling or rust at the base | Licensed plumber |
| Slab or buried line | Warm floor spot or low pressure | Licensed plumber |
| Outdoor line | Soft wet ground | Licensed plumber |
Guidelines on drying after a leak
If the leak already wet a wall or floor, drying guidance applies. The EPA suggests starting within 24 to 48 hours, and the ANSI/IICRC S500 standard is the professional reference.
DEP Leak Forgiveness Program
DEP states that the program is for metered accounts. The leak must cause a bill of at least 200 percent of a normal bill, the leak must be fixed within 120 days, and the account must not have received forgiveness in the past two years. DEP forgives half of the high bill amount, with a floor of 150 percent of a typical bill.
You apply by mail or through My DEP Account within 120 days. If the property has no working automated meter reading device, a plumber's receipt is required. DEP also states that a licensed plumber can document a leak that could not reasonably be discovered, which extends the repair period by 180 days.
Prevent a repeat
DEP notes that it contacts customers about spikes and that My DEP Account offers leak notifications. Check the account for alerts and read the meter monthly. A habit of checking takes two minutes and can catch a leak before it harms a floor.
If a leak already wet a wall or floor, drying should start quickly. The EPA advises drying within 24 to 48 hours to limit mold growth.
Reading the meter
Learn where your meter is and how to read it. Many meters have a small leak indicator, such as a dial or triangle that spins when any water flows. If it moves with everything off, you likely have a leak.
Write down the reading on the same day each month. Comparing two numbers over a month shows your normal use and makes a spike obvious.
Toilets and outdoor taps
Toilets are the most common source of hidden water use. A flapper that does not seal lets water trickle into the bowl all day. A food coloring test shows it quickly, and many repairs are inexpensive.
Check outdoor taps and hoses too. A hose left connected can leak at the spigot, and a damaged line in the yard can lose water below ground.
What to tell the plumber
Tell the plumber what you found: the meter reading, the time between checks and any wet spots. Ask for a written report of the cause and the repair, and keep the receipt. DEP asks for repair documents when you apply for forgiveness, and an insurer may ask for them too.
Key points to remember
Use this order of operations.
- Check the meter with all water off.
- Look at toilets, taps and the water heater.
- Call a licensed plumber with your findings.
- Keep every receipt.
- Apply to DEP within the time limit.
- Dry any wet materials quickly.
Notes for Rosedale
Rosedale is part of a larger sewer and water main upgrade. The City announced a $51.8 million project including almost 2 miles of water mains and more than half a mile of sanitary sewers across 36 blocks. If your bill jump follows nearby construction, call 311 or DEP and ask whether a service change or an outage played a part.
If you manage a property in Lawrence, billing comes from a different system, so ask your own provider. In Cambria Heights the same DEP program applies as in the rest of Queens.
Common questions
How do I know if I have a hidden leak?
Turn all water off, read the meter, wait an hour and read it again. A change means a leak.
Will DEP forgive my whole bill?
DEP says it forgives half of the high bill amount, with a floor, and rules apply.
How long do I have to apply for Leak Forgiveness in Rosedale?
DEP says to apply within 120 days of the repair rules and by mail or My DEP Account.
Does a leak always cause visible damage?
No. Leaks inside walls or under slabs can run for a long time before stains appear.
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