A Corona slab leak is a pressurized supply pipe leaking under the concrete floor, and the pipe under the house is the homeowner's to fix. The City of Corona Utilities Department runs the water system and asks customers to let it know before altering or replacing their service line. Call the number on this page to be connected with a local plumber in Corona.
Signs worth taking seriously
- Your meter shows flow while nothing in the house or yard is running
- One area of flooring is warm, damp, or starting to buckle
- A hissing or trickling sound you can only hear when the house is silent
- Hot water takes longer to arrive or runs out faster than it used to
- A bill that jumps with no change in how you use water
Check toilets for silent running and walk the irrigation zones before deciding it is under the slab.
What is different about Corona
Corona's water comes from a blend of city wells (much of it treated at the Temescal Desalter), Colorado River water from Lake Mathews and some State Water Project water. The city's water quality report lists average hardness of 146 mg/L, or 8.5 grains per gallon, classed as hard, and the water is disinfected with chloramines. That hardness shows up as scale in heaters and fixtures more than as a cause of buried leaks.
Water pressure is worth a look after any slab leak. The city's answer center says pressure regulators are the customer's responsibility to replace when needed, and a failed regulator lets high pressure stress every joint in the house, including those under the floor. The Utilities Department's inventory found no lead or galvanized service lines needing replacement. For a leak at the meter, call the Utilities Department at (951) 736-2234; after hours, option 1 reaches the standby crew.
Cost factors
- Detection effort. Pressure testing hot and cold separately, then acoustic and thermal locating.
- Access. Opening the slab at the leak versus rerouting through walls or the attic.
- Surface finishes. Tile, stone and hardwood add restoration work.
- Pressure regulator. Replacing a failed regulator if high pressure is part of the story.
- Permits. Corona's Building Division handles permits and inspections through eTRAKiT; note the office is closed Fridays.
After you call
You will be connected with an independent plumber who covers Corona, from the Grand Boulevard circle to the hillside neighborhoods. Share what the meter did, where you noticed warmth or moisture, and whether there have been earlier leaks. The plumber can then plan to test first, locate second, and only then discuss opening the floor.
Slab Leak Repair questions in Corona
Can high water pressure lead to leaks under the slab?
Who is responsible for a leak between the meter and the house?
Does hard water cause slab leaks?
Can a slab leak wait a few days?
More plumbing services in Corona
Slab Leak Repair nearby
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