Vinyl siding is very durable and it looks great on almost any home, but it does require some cleaing every so often, especially for those with homes in areas more susceptible to airborne algae and mold.1 Fortunately, vinyl siding is designed to be cleaned, and can usually be made to look brand new without much effort.
There are a few important things you will want to have done before getting started with the garden hose:
Now that you’re prepped here’s what you’ll need:
To begin, spray the house with the hose to remove the loose debris. Fill your bucket with 4 gallons of water and mix in ¼ cup of laundry detergent. Use your sponge mop and start from the bottom working your way up. If you come across a stubborn stain use the soft bristled brush. Working in a side to side motion will give you the best results. Once you’re done scrubbing, rinse as soon as possible, starting from the top and working your way down to prevent streaking.
You can also use a power washer with a 25-degree nozzle that won’t damage the siding. When using the power washer, avoid spraying directly onto the seams; you don’t want to force water behind the vinyl panels. Start at the bottom and work your way up when using soap and start at the top and work your way down when rinsing.
Here are a few extra tips to help you with this project:
 For example, homes near large bodies of water may have dirtier siding.