How to Clean Mold From a Concrete Block

Mold grows on concrete as a result of moisture and mold spores within the cracks.  Simple household materials can effectively clean mold.  Take action as soon as possible due to the health and potential foundation damages mold poses if it spreads.

1.  Wear a facial mask, and rubber gloves to protect your face and hands. Do not risk inhaling harmful spores or the cleaning solution. In addition, due to the possibility splashing may occur, consider using goggles and wear older clothing.

2.  Mix two parts bleach with four parts water in a container. The simplest household cleaner to effectively kill the mold is bleach. You do not need to add anything else.  You may opt to visit a hardware store and purchase a mold cleaner. Too many cleaners may result in harmful vapors, so decide on one or the other. 

3.  Scrub the solution on the concrete surface removing all areas of mold. Attempt to scrub the surrounding surface for potential spores that may have spread to areas where the mold is not visible.

4.  Allow the area to dry completely. Depending upon the location and the weather, you may need to utilize a fan to complete the drying process. Remember areas of moisture allow mold to grow.

5.  Control the mold. Make an effort to keep the mold from returning. Try to determine where the moisture came from and fix the issue. If you cannot find the culprit, consider doing routine scrubbings with the same cleaning solution to keep the mold from returning.