How to Get MOLD Off of BRICK

4 Materials
$5
1 Hour
Easy

We recently got new recessed lights installed on the side of our house (a nice perk of having your home damaged in a natural disaster!) With the beautiful new lighting you can see allllllllllllllllllll the dirt on the side of our house. The green mold/mildew on the brick was now seriously highlighted! I needed to get it cleaned ASAP!

You may also enjoy this cleaning video!

Here's what it looked like before. You can see that the bottom few bricks all the way across have that dark, black/green mold on it. We live in a humid subtropical climate so this is pretty normal!

I know there are a lot of specialty products out there I could have gone out and purchased but I wanted to see if I could get it cleaned up with something I already had! I decided to try BLEACH! I already had this so I diluted it and put it in one of our pump sprayers.

I went along the brick and saturated it as much as I could.

I then used a brush to try to scrub it away. I didn't hav nearly enough elbow grease so after letting it sit for a bit, I pulled out the POWER WASHER. I'd tried this before (without first pretreating and it did NOTHING) but this time it worked!

It isn't perfect but it looks LOT better! A repeat treatment would probably get the remaining little bit.

The trick is to pretreat the brick with the bleach then use your powerwasher to get it off! I've also read vinegar works for this! If you try it please let me know!


If you found this helpful, please visit my CLEANING ARCHIVES!

Resources for this project:
See all materials
Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Hometalk may collect a small share of sales from the links on this page.More info
Amber Oliver
Want more details about this and other DIY projects? Check out my blog post!
Go
Frequently asked questions
Have a question about this project?
Comments
Join the conversation
2 of 5 comments
  • Joye R. Foster Joye R. Foster on May 15, 2021

    Actuallly, bleach makes it look better, but it will not kill the mold. Vinegar will kill mold. Then use the bleach.

  • Mary Beth Carrier Mary Beth Carrier on Jun 20, 2022

    We’ve been through this before especially after rough hurricane seasons likely I’ve had the past few years in South Louisiana. We have eventually learned what works for us is to go to your nearest big box store and get the outdoor Clorox with the green label.


    I think it works a lot better because it’s more of a gel white consistency so when you spray it with your garden sprayer and let it sit then we had sprayed it a second time just before the pressure wash.


    We used the same trick on the section of vinyl siding that’s on a part of the house very close to our huge Live Oak . In the late spring after the pollen from the tree makes pretty much every vehicle and many houses in my hometown covered in that bright yellow pollen. Well you don’t clean it off of your house or your roof pretty quickly, it will turn into a green slime that is never fun but the outdoor Clorox and just a garden hose takes it right off of the siding.


    at this point in our lives we tend to go for the easy, peezy things that require much less physical labor & this remedy fits the bill!

Next