How to Clean Mold Off of Brick Walls

There is something inherently lovely about ivy growing up in a brick home, even if it’s a little hard on your bricks. But there is nothing attractive about mold on bricks. While often green or blue, mold can also be brown, yellow, orange, or black. It grows fuzzy and sometimes in unusual forms from the porous holes in your brick and the gaps in your mortar.

Mold on a brick wall is not just harmful to your wall but also a health hazard to your family and your neighborhood. Fortunately, you can carefully remove mold from bricks with the proper process, and Brick Experts can help. This helpful guide will walk you through how to clean mold from bricks on your Dallas home and how to keep it away.

What is Mold? And Why Should I Clean It From Bricks?

Mold is a unique type of fungus that spreads through microscopic spores. In the wild, it breaks down organic matter like fallen trees by growing on moist and porous surfaces. While mold cannot eat brick, it can take root there, living on available moisture and a thin layer of dirt that often forms over outdoor brick walls.

While mold has a purpose in a wild ecosystem, it is dangerous to humans and pets. Mold spores cause intense allergic reactions, including breathing problems, headaches, hives, and even long-term damage if you breathe in air heavily saturated with invisible mold spores. Cleaning it from your bricks will make your home safer and allow you to perform brick restoration where porous surfaces enable mold to grow.

How to Remove Mold From Bricks

Removing mold means you must kill the mold colonies and wash away the mold forms and all its spores as safely as possible. Fortunately, you can do this with ordinary household vinegar or commercial mold cleaners. You will also need protective gear for yourself and your garden.

Supplies

  • Garden Hose
  • Vinegar or Mold Remover
  • Large Scrub Brush
  • Gloves, Goggles, and Face Mask
  • Tarps for Nearby Plants
  1. Find the Moisture Source
    In Dallas, the humidity is not traditionally high enough to nurture mold growth on brick. So there is likely another moisture source nearby. It might be a broken roof gutter, a nearby plumbing leak, or a place where moisture is trapped and builds up. Look for ways to repair or prevent moisture from continuing to saturate the area, or mold will regrow once it is removed.
  2. Wear and Lay Down Protection
    Wear protective gear, especially over your hands, eyes, nose, and mouth. Mold can cause intense allergic reactions and can even be toxic. You may also want to lay down tarps to protect nearby grass or flower beds before you apply your mold cleaner, which can also kill other plant life.
  3. Apply Mold Remover
    Commercial mold remover blends or a potent mix of white vinegar can kill mold and make the brick less habitable to mold in the future. Spray down the entire moldy area up to a foot on each side of the visible mold and let it soak in for a few minutes.
  4. Scrub and Remove
    Use your scrub brush or long-handled scrubbing broom to scrub and scrape the mold off of your wall.
  5. Rinse & Repeat
    Use the garden hose to rinse all the mold and mold cleaner from your wall. There will likely be more to remove, so continue steps 5 and 6 until the job is done. Then soak the wall in mold remover or strong vinegar and let it penetrate the brick wall deeper over time.

Use the garden hose to rinse all the mold and mold cleaner from your wall. There will likely be more to remove, so continue steps 5 and 6 until the job is done. Then soak the wall in mold remover or strong vinegar and let it penetrate the brick wall deeper over time.

Mold Can Be Dangerous

Depending on the type of mold and your body’s reactions, mold can be hazardous. Because you can’t easily identify whether this mold on your brick wall is toxic, protecting yourself and nearby plant life from puffs of spores or the run-off when you wash and scrub it away is best. If you do not have experience and/or full protective gear, it’s best to have professionals clean mold off a brick wall, with needed brick restoration services to repair any damage that may have been caused by the mold.

Contact the Brick Masonry Pros in Dallas-Fort Worth

You don’t have to deal with mold on bricks alone. If mold is growing on your brick wall indoors or outdoors in the Dallas-Fort Worth area, Brick Experts can help.

Contact us for brick restoration services, including cleaning unwanted fungus and mold growth from the porous outer layer of your brick wall. Our team will use proper protection and professional mold removal techniques to ensure your home is safe and keep it that way. We will then restore your brick wall of missing mortar and other damage so that it is less susceptible to mold in the future.

Contact us for more information or a consultation for your brickwork.

Image Credit: faridan hadi rukmana/Shutterstock

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Gerry H. profile picture
Gerry H.
29 September 2026
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I contacted Brick Experts to repair a hairline crack on the south wall of my house as well as the mortar joints over the arched entry to my garage. I was concerned about matching the brick color since the home is fifteen years old and the brick has long been discontinued. I worked with Brian who did a great job finding a very close match. If you didn't know where to look, you'd never notice. Overall, the quality of the work was outstanding. The mason who did the repairs was professional and courteous and did a great job cleaning up the job site. I also felt the price was fair. I would highly recommend Brick Experts and would use them again should the need arise.
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Gabby Wang
17 September 2026
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Our brick repair was done quickly and well!
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Maria F
16 September 2026
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Brick Experts Ft Worth rebuilt our brick mailbox that was the original home builder's 20 year old installation. From the first moment we contacted Brick Experts Ft Worth I knew we made the correct company selection. My website inquiry was answered within 30 minutes by a phone call even though it was after their normal business hours. Marcos, who was the project manager, came the next day and provided the estimate by early afternoon. I asked many questions about the build process and it was evident that Marcos had actually done masonry work before. The actual work started within one week. Responsive and easy to do business with. The brick mason crew spent about 1 1/2 days on the rebuild which included a new base which now has rebar to reinforce against movement of Carrollton soil. They were deliberate and meticulous with the build. It was obvious from watching that these gentlemen were experienced brick masons. They made precision brick cuts with masonry saw so rounded top of mailbox had smooth angles and corners. Clean-up was done each day and they even made sure all dry mortar chips were cleaned up from grass. I will definitely use Brick Experts Ft Worth for any future masonry projects I may have. Thank you to Marcos and crew for job well done.
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Robert Colmery Jr.
11 September 2026
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I received a number of quotes from different companies. David came out to take a look at our from porch and the repair work that was needed. He took the time to explain things in detail to my wife and she felt the most comfortable with David's recommendations. Once we signed the contract, David has a crew out in less than a week. Could not be happier with our decision! Robert Colmery
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Chuck Paschke
9 September 2026
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Outstanding customer service!! Marcos and his team did an amazing job from start to finish. Job was done with excellence, on time, and for a great price. I highly recommend to all!!!
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Quentin Lyons
1 September 2026
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Great service on realigning my brick mailbox!
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Carol Guiler
27 August 2026
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We've had work done twice and both times he's been prompt, reliable, and did great work. My husband was in that same business in Ohio for 40 years, so he's not easy to please. But he's been very pleased with their work
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Steven Lomas
21 August 2026
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We’ve had Brick Experts handle two different projects at our church facility, and they were prompt, professional and the work was completed in a timely manner. They take pride in their work, and it shows.
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Kevin Shaw
12 August 2026
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Brick experts did a really nice job fixing my mortar and putting in some expansion joints. They got most of the work done in a half a day and then came back to finish up two days later. I am very satisfied with the work and the price!
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B Wright
4 August 2026
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Brick Experts did a great job handling several problems for us. The process started out with David, who was timely and responsive. Then the good work done by Enrique and José: - Replaced a section of exposed aggregate driveway - thanks, Felix and crew. - Removed rotten redwood from the expansion joints in the driveway and pool deck and filled with sanded-top caulk; - Reset two driveway brick lines and replaced broken bricks; - Replaced dried out mastic around our pool; - Straightened two leaning brick pillars. The guys on the job worked hard in the summer heat and finished everything with quality. Pricing was fair.

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