Mold on Walls

Discover the common causes of mold on walls, and learn how to prevent mold growth in your home.
A detail shot of mold climbing up the corner of the wall.

HGRM_mold-climbing-wall-corner_s3x4

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

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

See All Photos

Shop This Look

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.

Next Up

How to Identify and Remove Mold in Your Home

Learn about the different types of mold and mildew, how to get rid of them and how to safeguard your home from this dirty fungus.

How to Identify Mold vs. Mildew

Mold and mildew are definitely fungus brothers, but they do have a few striking differences. Learn how to identify mold and mildew and how to get rid of them.

Black Mold Symptoms and Health Effects

Learn about black mold symptoms and health effects so that you can identify indicators of black mold exposure and black mold poisoning.

How to Find Studs in a Wall Without Using a Stud Finder

Finding wall studs without a stud finder doesn't have to be a guessing game. If you're hanging something heavy on the wall, follow these best practices and pinpoint a stud with ease.

How To Install Picture Frame Molding

As a wall treatment, picture-frame molding is a simple way to give an elegant, classic look to an ordinary space — as well an ideal way to highlight framed art.

How to Paint With Wall Stencils

For an inexpensive alternative to wallpaper — and a creative wall-treatment that adds visual interest and a touch of whimsy — check out this simple how-to for applying a paint pattern using wall stencils.

How to Install a Board and Batten Accent Wall

This simple tutorial will teach you how to install traditional board and batten wood paneling, plus tips for installing wallpaper above it.

How to Install a Wood-Slat Feature Wall

Transform an ordinary wall into a distinctive design feature using this simple and inexpensive slat-wall technique that adds depth, warmth and visual interest to an interior space.

Top 10 Ways to Paint Like a Pro

For a professional-looking paint job, do what the experts do.

How to Clean Grout

Show that mold and mildew who’s boss with our best tips and tricks for cleaning grout.

Go Shopping

Get product recommendations from HGTV editors, plus can’t-miss sales and deals.

On TV

Follow Us Everywhere

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