5 Telltale Slab Leak Symptoms Not To Ignore

A slab leak is a leak that occurs under the concrete slab of a house. It is often caused by the presence of clay or unstable soil below the slab, which shifts easily and can create cracks. The pipes which are attached to the slab will often break in this scenario.

It’s important to identify slab leak symptoms, because a slab leak can be very destructive to your home. The sooner you catch it, the better. However, many of these leaks can go unnoticed for months, causing more damage and costing you more and more money.

AAP Home Services is here to help you identify a few of the common signs you have a slab leak so that you can prevent further damage and bigger bills in the future.

Slab Leak Symptoms

#1 – Suddenly Steep Water Bill

If you are aghast at your latest water bill, a leak is a likely culprit. This is often the first sign, before anything else has a chance to develop. But first, check if there could be another cause:

  • Leaky faucets & fixtures
  • Unmaintained irrigation system
  • Constantly running toilets
  • New appliances
  • New members in your household

If none of those seem likely, you may be dealing with a slab leak.

#2 – Warped Floors or Baseboards

It should be a red flag if you notice floors that were previously straight are now curved, especially if accompanied by moisture or dark spots. If the area floods enough, you will also see puddles. Residential floors were not made to endure constant exposure to water, and they will soon bloat and warp.

Sometimes, bowed or warped floors can be caused by other things such as poor construction or age, but if you notice telltale moisture, you are probably dealing with a leak.

Slab Leak Symptoms

#3 – Mysterious Running Water Sound

If no one is showering in your home or using a faucet, toilet or appliance, and you hear the sound of running water, you should consider that there might be a leak underneath you. An exception is if you live in an attached home/townhouse.

#4 – Hot Areas on Your Floor

Unless you have radiant heating that is malfunctioning, hot spots on your floors usually indicate that a hot water line has burst underneath. And if those hot areas are damp, it’s a red flag for a slab leak.

#5 – Mold or Mildew

Where there is constant humidity, there is usually mold or mildew. Sometimes excess humidity is due to a lack of ventilation or overuse of a humidifier, but it can be caused by a leak. These are a few indications of the presence of mold or mildew:

  • Musty smell
  • Unusual allergy symptoms
  • Discoloration on walls and floors
  • Black, brown, gray or green spots

Slab Leak Detection

There are a few different ways a plumber can use to professionally diagnose a slab leak. AAP can perform:

  • Electronic Leak Detection
  • Water Line Tracing
  • Induced Air Method
  • Thermal Testing
  • Thermal Imaging
Slab Leak Symptoms

If you suspect you have a slab leak and want a professional to take a look, call us at (855) 893-3601.