Rancho Cucamonga homeowners usually suspect a leak after a high Cucamonga Valley Water District bill, a meter that won't stop, or a damp floor or wall. A plumber can confirm the leak and locate it so the repair is targeted. Call the number on this page to be connected with a local plumber in Rancho Cucamonga.
Rancho Cucamonga at a glance
Most leaks a homeowner can't see fall into a few groups: toilets and fixtures, supply pipe under the slab or in a wall, the buried line from the meter, and the irrigation system. The City of Rancho Cucamonga lists Cucamonga Valley Water District as its water provider, reachable at (909) 944-6000. If water is bubbling up at the meter or the curb, start with the district. Leaks between the meter and the house, and anywhere inside, are a job for a plumber. Homes here vary in age and layout, so the most likely leak points differ from one house to the next. Foothill areas near the mountains can also see occasional frost, which is hard on exposed hose bibs and irrigation backflow assemblies.
What to do now
- Turn off every faucet, appliance and the irrigation controller.
- Read the water meter, wait at least 30 minutes without using water, and read it again.
- If the reading changed, close the main shutoff at the house and check the meter once more. If it stops, the leak is inside or under the house; if it keeps moving, suspect the yard line.
- Look for warm floor tiles, damp baseboards and stains under sinks.
- Put a few drops of food coloring in each toilet tank and wait 15 minutes without flushing.
- If water is spraying or a ceiling is sagging, shut off the main and call right away.
Symptoms and what they usually mean
| Symptom | Likely cause |
|---|---|
| Floor tile warm in one spot | Hot water line leaking under the slab |
| Color shows up in the toilet bowl | Worn flapper or seal |
| Wet lawn strip from meter to house | Break in the private service line |
| Water stain on a ceiling | Attic or upstairs supply line, fitting or drain |
| Hissing behind a wall | Pinhole in a pressurized pipe |
| Mud near a sprinkler valve | Valve that won't seat or a cracked lateral |
What affects the cost
- How quickly testing narrows the leak to one section
- Whether the pipe is in a wall, under the slab or underground outside
- Equipment needed, such as acoustic sensors or thermal imaging
- Whether drywall, tile or landscaping has to be opened and then patched
- The repair method and whether the City of Rancho Cucamonga Building & Safety requires a permit, which is applied for through its Online Permit Center
Leak Detection questions in Rancho Cucamonga
Water is pooling at the meter box or the curb. Who should I call?
Can a toilet that keeps running really waste much water?
Can a cold night cause a leak I won't notice right away?
Is a permit needed to fix the leak once it is found?
More plumbing services in Rancho Cucamonga
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