The Best Way to Clean Old Bricks

Updated February 21, 2017

If you have any brick around your home, you know how difficult it can be to clean bricks and keep them clean. When you utilise the very best cleaning methods, you may go a longer time between cleanings. The best methods may also be necessary for particularly old brick that has a large build-up of debris and organic material, such as algae. The surfaces of some bricks are not smooth, so cleaning them can be challenging, but it possible with the right tools and methods.

Use a power washer with pressure of less than 1361 Kilogram per square inch to wash off your old brick. A more powerful washer can damage the brick's surface. This can get rid of a lot of surface stains on the brick, as well as clear away some of the algae and moss growth.

Mix 1 part household chlorine bleach and 9 parts water in a bucket.

Scrub the entire surface of the brick with a stiff-bristled brush. The bleach solution will remove stains and get rid of any stubborn algae and moss.

Rinse the brick area again with the power washer.


Wear eye protection and rubber gloves when cleaning with chlorine bleach.

Things You'll Need

  • Power washer
  • Water
  • Household chlorine bleach
  • Bucket
  • Stiff-bristled scrub brush
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About the Author

J. Johnson has been completing freelance writing work since September 2009. Her work includes writing website content and small client projects. Johnson holds a degree in English from North Carolina State University.