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Home Care Library

Protecting and Cleaning Your Vinyl Siding

Since vinyl siding never needs painting, it might be easy to assume that this means that your vinyl siding is indestructible and requires “no maintenance.” Unfortunately, this is not the case, and in this article, we discuss what you should do to protect and clean your vinyl siding.


Concentrated solar reflection from nearby energy-efficient glass windows, roofing, pavement, etc. can cause heat distortion to your vinyl siding. This can be prevented by blocking the path of this reflected sunlight with trees, shrubs, or fences (helpful accessory: window screens). Or in the case of reflections from nearby energy-efficient windows, these windows should have screens or awnings added to them.

Vinyl siding has a relatively low melting point, so you will want to be sure to keep heat sources (such as barbecue grills) and combustible materials (such as dry leaves, mulch, and trash) away from your vinyl siding. And when doing home projects that involve stains, sealants, and wet concrete, you should cover your vinyl siding to prevent these products from damaging your siding. Also, certain insecticides or herbicides can potentially stain your vinyl siding, and you should be carefully research and test in a small area before applying any of these products near your vinyl siding (helpful accessory: vinyl siding cleaners).

You should trim any shrubbery or trees which are near your house, so they don’t rub against and mar your vinyl siding. You should also inspect your siding to be sure that all areas are firmly attached, otherwise strong winds can use these loose areas to pull entire sections off of your home. Also inspect for areas which are damaged, cracked or punctured and need to be replaced to maintain water and pest protection for your home.

And be sure to consult with your vinyl siding manufacturer before painting vinyl siding. Many manufacturers void their warranties if their siding is painted. However, vinyl siding should never be painted a dark, heat-absorbing color, as it will cause your siding to tend to warp and sag when exposed to strong sunlight.


To keep your vinyl siding looking good, you should wash and clean it using a cleaner that is approved by your manufacturer. Small spots of mold and mildew can be removed with cleaners such as Fantastik or Windex. For larger sections, a solution of vinegar (30%) and water (70%) is usually effective, and is environmentally more friendly than using household cleaners and bleach. Do NOT use cleaners containing organic solvents, undiluted chlorine bleach, liquid grease remover, nail polish remover, or furniture polish or cleaners, as these can affect the surface of your vinyl siding.

Power washers should only be used if allowed by your particular manufacturer. If you do use a power washer, be careful not to etch the siding with too strong of a stream. And be sure to spray the water on a downward angle and away from any window edges or corners, so as to keep water from getting under your siding.

When washing and cleaning your vinyl siding, use a soft cloth or a long-handled soft-bristle brush (which works well for textured vinyl surfaces), and start at the bottom of your house and work up. If you go top to bottom, the cleaner and dirt that flows downwards can sit on the lower boards for too long and damage them. And be sure to thoroughly rinse the cleaning solution away completely before it dries.

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