Cleaning your Vinyl Siding

If you are having a build-up of black or green mildew (most commonly found on the north side of the home)  you can easily clean it with this mixture (see below). Purchase a soft brush and place it on a telescoping pole for easiest cleaning.

For streak-free cleaning, work from the bottom up and do 3'x3' areas and then rinse thoroughly.  You are cautioned against changing the proportions of TSP and/or bleach as it can easily damage vinyl and polypropylene siding.

Mildew Cleaner
3 quarts water
1 quart household bleach
1/3 cup powdered laundry detergent
2/3 cup TSP (Soilax trisodium phosphate, for example)


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