It is true. Concrete cracks can create a real mess. Foundation cracks do a number on your foundation wall itself and the environment inside your house. Foundation cracks can lead to a number of problems, issues, and yes, messes.


The number one mess foundation cracks create is water. Even small, nonstructural cracks can lead to basement leaks. When water enters the basement it can lead to more messes. Not that just water alone is a mess enough! Water can damage your house structure and your personal items that are in storage in the basement. If your basement is finished, water coming in can cause even more of a mess! Replacing Sheetrock and carpet because of a basement leak is just messy.

Mold and Mildew

With the water and moisture that concrete foundation cracks let into the basement, it commonly leads to mold and mildew in the basement. Mold needs two things to grow and flourish: water and a food source. If moisture is coming into the basement, it will create a damp environment perfect for mold growth. Any organic material becomes the food source, including wall board, insulation, and fibers. Microorganisms can even be food sources for mold to grow right on a concrete wall.

Pests and Rodents

Pests and rodents can also enter through foundation cracks. Any opening to the outside will allow a pathway for insects, bugs, spiders, small rodents, and other pests to get inside. The moisture issue also impacts pests. If there is water and a moist environment, there are more insects and bugs. Pest control professionals say controlling the water issues in a basement is the first line of defense against a bug problem.


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Indoor Air

Foundation cracks can also mess up your indoor air quality creating a dangerous mess for your family’s health. Foundation cracks can let in dangerous soil gases like radon, the second leading cause of lung cancer and the number one cause among nonsmokers. Radon is a serious issue and can be 100% prevented by fixing foundation cracks and gaps and installing radon mitigation systems. Because you can’t see or smell radon the only way to know you have it is to test for it. You can buy DIY test kits at hardware and home improvement stores or hire a professional to come test your home.


Foundation cracks can be a sign of an even bigger mess. For one, small cracks are a sign of a weakened foundation. If left alone, the problem will get worse and could turn into a structural problem. It is important to get any foundation cracks looked at by a professional foundation repair contractor. Diagnosing the issue and fixing cracks while they are small is the key to avoiding all the messes foundation cracks can cause.