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Slab Leak Myths: 8 Things Homeowners Get Wrong

Some of what circulates about slab leaks is half right. Here are eight common beliefs and what is closer to the truth.

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By Pomona Slab Leak Pros · Updated November 2026

1. “A warm floor always means a slab leak”

Technician holding a thermal camera over a tile floor to find a hidden leak

No. Sun, ducts and appliances warm floors too. See warm spot on floor.

2. “The warm spot is where the leak is”

Not exactly. Hot water travels, so the warm area can sit away from the break. See slab leak detection.

3. “A slab leak always means breaking the floor”

No. Reroutes and some lining avoid it. See repair options.

4. “A small leak can wait”

It will not fix itself. See can a slab leak fix itself.

5. “Insurance always pays”

It depends on the policy, and the pipe itself is often excluded. See slab leak insurance coverage.

6. “Only old houses get slab leaks”

Age is a factor, but not the only one. See causes of slab leaks.

7. “A high bill means a slab leak”

It can, but irrigation, a running toilet or a change in use can too. See high water bill and slab leaks.

8. “Any plumber can find it”

Locating leaks takes testing equipment and experience. See hiring a slab leak plumber.

Frequently asked questions

What is the best first test?

The meter test. See how to tell if you have a slab leak.

Is a slab leak an emergency?

If water is visible or the meter runs fast, treat it as one.

Can I find it myself?

You can confirm a leak. Locating it takes equipment.

Where do I learn more?

Start with the slab leak guide.

Need slab leak repair Pomona homeowners can book? See our slab leak repair Pomona page for how we work, or call (909) 415-2610.

Water running, or a warm spot on the floor?

Shut off the main if water is visible, then call. A Pomona plumber will tell you what to do next.

Call (909) 415-2610

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