Mold on Walls

Discover the common causes of mold on walls, and learn how to prevent mold growth in your home.
HGRM_mold-climbing-wall-corner_s3x4

HGRM_mold-climbing-wall-corner_s3x4

Photo by: beti gorse

beti gorse

A detail shot of mold climbing up the corner of the wall.

By: Sean McEvoy

Mold on walls is a common problem for homeowners, particularly in damp, humid areas like basements, crawlspaces and bathrooms. You can take steps to identify problem areas and prevent mold on walls and mold in walls — and if your home is already affected by mold growth, you can address the problem with various mold removal products.

Hallmarks of a Healthy Home

Healthy Living

A Healthy Home Is Organized

A Healthy Home Is Dry

A Healthy Home Is Ventilated

A Healthy Home Is Clean

A Healthy Home Is Pest-Free

A Healthy Home Is Nontoxic

A Healthy Home Is Structurally Sound

A Healthy Home Is Free of Combustion Byproducts

A Healthy Home Is Maintained

A Healthy Home Is Comfortable

One of the most likely places for mold on walls in the home is in the basement. Because basements often retain moisture and humidity and can be susceptible to foundation leaks, they're prime areas for mold, which needs only oxygen, moisture and organic material to survive and thrive.

In particular, basements with old or exposed drywall can be at risk for mold on walls. Paper-coated drywall can be an optimal place for mold growth, as the organic material perfectly suits mold as a food source.

If you suspect that you have mold on walls or mold in walls in your home, there are several steps you can take to remedy the problem. First, remove all mold-covered debris, including drywall, insulation, sub-flooring and carpet. Next, you can use commercial products that contain ammonia or bleach on any hard surfaces affected by mold. Remember to wear a respirator or mask rated for mold spore exposure during any mold removal.

If you encounter mold on walls in bathrooms or showers, there's an easier solution: vinegar. Regular applications of vinegar or a borax and water mixture should keep walls in your shower and bathroom mold free.

Behind the Walls

Next Up

Mold-Resistant Drywall

Learn about mold-resistant drywall and how it can help prevent mold growth in your home.

Common Types of Mold in Homes

Mold comes in all shapes, sizes and colors. Learn how to identify the type of mold in your home and develop a plan of attack for treating it.

Controlling Mold Growth in Your Home

Tips for battling mold issues in your home.

Mold-Resistant Paint

Learn about mold-resistant paint, which can help keep your home mold free.

How to Kill Mold

Killing mold is a dirty job, but the right tools can help you wipe it out for good. Check out these tips for using the best cleaners to solve your fungus problem.

Common Areas for Mold Growth

Learn the most common areas for mold in your house, and take steps to safeguard against mold growth.

How to Prevent Mold

Learn strategies to prevent rot from ruining your health and your home.

Mold Cleanup

Follow these tips for safely removing mold from your home.

Mold Remediation and Removal Costs

Mold removal can be a tricky — and expensive — business. Here's what to expect when considering the cost of mold remediation for your home.

Mold Control and Prevention Products

Learn about the best mold-resistant products, and how to use them in mold prevention and mold control.

Stories We're Following

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.