The short answer
Check the Easy Causes First
Start with the simplest explanations. A running toilet can waste hundreds of gallons a day. Listen for the sound of water moving in the tank, and check if the flapper valve stays open. Dripping faucets add up too, especially if multiple fixtures leak at once.
Look at your outdoor usage. In a semi-arid climate with cold winters and hot dry summers, irrigation systems often run longer as temperatures rise. A broken sprinkler head or a schedule change can double your outdoor water use. Review your watering timer and walk the yard for pooling water.
- Listen for a running toilet by lifting the tank lid
- Check faucets and showerheads for drips
- Inspect sprinkler heads for damage or misalignment
- Review your irrigation timer settings
- Note any new appliances or water habits
Look at Your Water Meter and Bill
Your water bill itself holds clues. Compare the current usage numbers with previous bills. A sudden jump of 50 percent or more usually points to a leak or a change in behavior. Look for notes from your utility about unusually high readings or possible leaks.
Sometimes the meter is the problem. Meters can malfunction and over-record, though this is less common. If you suspect the meter, contact your water provider to ask for a reading check. They can test the meter or replace it if needed.
Also review the bill for billing periods. A longer billing cycle can make the bill seem higher. Check the start and end dates on the bill to see if the number of days changed.
Inspect Pipes and Fixtures
Leaks in supply lines are a common culprit. Check the main shutoff valve and the connections to toilets, washing machines, and dishwashers. A loose fitting or a worn rubber hose can spray water behind appliances where you never see it.
Consider the age of your plumbing. Older pipes can corrode and develop pinhole leaks. If you have copper pipes, look for greenish stains that indicate slow drips. In crawlspaces, insulation can hide leaks, so use a flashlight and feel the pipes for moisture.
If you find a pipe break, you may need to shut off the water immediately. Know where your shutoff valve is located and keep it accessible. If you live in Caldwell, write down the location so you can act fast in an emergency.
When to Call in the Pros
If you cannot find the leak or the damage is extensive, it may be time to call local water damage pros. They have tools to detect hidden leaks, such as moisture meters and thermal imaging. They can also assess water damage to drywall, flooring, and insulation.
Before they start, you should still do a basic check. The pros will need to know where you suspect the leak and what you have already inspected. This helps them focus their search and avoid unnecessary work.
If you discover water damage, act quickly to prevent mold and structural issues. For wet carpets or flooring, see the water-damaged flooring removal page. For soaked drywall, check the drywall water damage repair page. For crawlspace water, the crawlspace water extraction page covers the process.
Policies vary, and your insurer decides what is covered. If you plan to file a claim, document the damage with photos and keep receipts for any temporary repairs you make.
Water damage does not wait
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (208) 729-2441Frequently asked questions
Could a running toilet really raise my bill that much?
Yes. A toilet that runs continuously can waste 200 gallons or more per day. That adds up to thousands of gallons a month, which can easily double your bill. Fixing a flapper or fill valve is often a simple DIY repair.
How do I find a leak in my yard?
Check for soggy spots, unusually green grass, or water pooling in low areas. Turn off all indoor water and watch your meter. If it still moves, the leak is likely in the outdoor line. You may need to dig up the pipe or call a plumber.
What should I do if I suspect a leak under my house?
Turn off the water at the main shutoff valve to stop further damage. Check for standing water, damp insulation, or musty smells. If you find moisture, you may need professional extraction and drying to prevent mold and structural issues.