How to Clean Algae From Porch Railings

Published: Oct 21, 2009
Updated: Nov 20, 2021
1 minute read

Things You Will Need

  • Biodegradable cleaner
  • Bucket
  • Water
  • Soft-bristle brush
  • Power washer

How to Clean Algae From Porch Railings

  1. Fill the bucket with water and biodegradable cleaner as indicated on the manufacturer's label—generally a 1-to-1 ratio.

  2. Dip the brush into the cleaning solution.

  3. Scrub the areas of the porch railing covered in algae. A circular motion works well to loosen up the dirt, algae, mildew and grime on the porch.

  4. Spray the railing with the power washer. This will remove all the dirt, grime, cleanser and unsightly algae. Start on one end and work your way across at a slow, consistent pace. Wash the railings from the top down, making sure to get into any groove that may contain algae to prevent its premature return.

Tips

Remove algae when the weather is warm and dry. Though not always possible, this will help to prevent the algae from returning as quickly. Though some people use it on algae instead of cleanser, bleach is a harsh substance that may discolor wood and affect finishes.

Kimberlee Leonard

With more than 15 years of professional writing experience, Kimberlee finds it fun to take technical mumbo-jumbo and make it fun! Her first career was in financial services and insurance.

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