How to Clean Aluminum Siding

While it is known for its durability and being relatively easy to care for, you will need to clean aluminum siding about every 12 to 18 months to keep it looking fresh and well-maintained. Here are some simple tips to make the job almost painless.

Before you begin, you will need to secure the area where you will be working. Since water and chemicals from cleaning solutions are involved, you will want to make sure that:

  • All windows and doors are closed
  • Landscaping in the near vicinity has been covered
  • Outdoor furniture, toys, bikes, etc. have been moved out of the way
  • Power to outdoor outlets has been shut off
  • If you need a ladder to clean aluminum siding, ensure that is can be stabilized properly and used safely

When you are ready to start cleaning the aluminum siding:

  • Cut your actual elbow-grease scrubbing time in half by using the garden hose to wash away loose debris and dirt – if you’re using a pressure washer, select a low setting to avoid denting the surface of the aluminum siding
  • Start at the top and work your way down
  • Add dish or laundry detergent to a pail of water
  • Wipe away the dirt and debris with a cloth or brush in small circles – when using a brush, don’t press or scrub too hard since aluminum can be easily dented or scratched
  • Once you’ve completed a section, rinse away soapy residue with the hose

Take the time to clean aluminum siding on a regular basis; not only does it improve the overall appearance of your home, it also helps to impede the breakdown of chemicals in the siding’s coating that can become chalky or spotted.