Today’s vinyl siding and polymeric cladding options offer all the style and durability of traditional materials but without their demanding upkeep. However, occasionally even the best engineered and tested products can incur stains such as algae build up or mildew growth especially in damp climates and in areas of the home that don’t access sunlight or rainfall like eaves or porch enclosures.
How to Use

Vinyl siding is an ideal option for homeowners who prefer a low-maintenance exterior. The cladding is resistant to damage and requires less upkeep than other materials, with the most significant effort required being regular cleaning. Whether you need to address stubborn stains, mildew growth, or just want to give your vinyl siding a spring clean, the right Vinyl Siding Cleaner can help.
Start at the bottom of your home and work your way up, taking care to protect any plants that might be affected by the cleaning solution. If using a cleaning solution with bleach, you should also wear rubber gloves, long pants, and a pair of safety goggles.
Mildew: Mildew growth can occur on dirty vinyl in damp climates, especially around eaves and porch enclosures. To remove, mix one-third cup of detergent (like Tide), two-thirds cup of trisodium (such as SoilMax) and a quart of 5% Sodium Hypochlorite with water.
Preparation
Vinyl siding and polymeric cladding are popular choices for homeowners who want to add classic curb appeal to their home without the worry of constant maintenance and upkeep. Unlike wood siding, which is susceptible to warping and rotting, vinyl is designed to last for years and maintain its appearance without the need for frequent repainting. However, just like other exterior cladding materials, it does need to be cleaned from time to time. Cleaning vinyl siding is a simple DIY project that can be done with the help of a bucket of soapy water and a soft-bristled brush. A mild detergent or a homemade mixture of vinegar and oxygen bleach can also be used to remove stubborn stains. Regardless of the cleaner chosen, it is important to test a small area before using it on the entire house to make sure it does not damage or strip the surface paint.
The most common reason to clean vinyl siding is to remove dirt buildup, which causes a grimy layer that dulls the color of the vinyl. This layer can be caused by a variety of factors, including pollen and dirt buildup, mildew and algae stains, bird droppings, and the chalky residue that can form on vinyl from exposure to UV rays. Regular cleanings can remove these stains, as well as the debris that accumulates and erodes the surface over time.
During the cleaning process, it is best to use a ladder or extension handle when working with a power washer because the high pressure of the water can crack or cause surface damage to vinyl siding. In addition, it is important to use a soft-bristled brush rather than metal to prevent scratching the surface of the vinyl. A metal brush can scratch or damage the surface and will also leave behind a streak of metal, which will dull the vinyl. A soft-bristled brush will allow you to get into the corners and nooks of your house with ease, while still being gentle on the vinyl.
If you are having trouble removing mildew stains from your vinyl siding, try making a solution using distilled white vinegar and 5% chlorine bleach to treat the problem. Be sure to weaken the bleach solution to the right concentration, as higher levels can damage the surface of your vinyl. In addition, be sure to protect any landscaping surrounding your house, such as trees and bushes, by wetting them or covering them with plastic before applying the bleach solution. It is also important to keep in mind that vinyl siding will only be protected if it is thoroughly rinsed after treatment. Be sure to turn off outdoor light fixtures, cover any plants or shrubs, and scrub the area thoroughly with a soft-bristled brush before rinsing it with the garden hose.
Cleaning
Vinyl and other polymeric cladding options offer homeowners the classic appearance of traditional materials without their demanding upkeep. Unlike wood, masonry and concrete cladding, these low-maintenance materials are designed to withstand the elements and only require periodic cleaning using mild soap and water from a garden hose. Occasionally, however, stains may occur such as algae build up or mildew especially in warmer climates and areas not subject to constant rainfall like the eaves or porch enclosures. Mildew can also be difficult to remove from surfaces unless the proper cleaner is used.
Maximize coverage for nonporous surfaces with this sprayer that attaches to your outdoor hose! Get fast results for algae, moss, black organic stains and hard to clean outdoor stains on vinyl fencing & siding, aluminum siding, awnings, painted surfaces, mailboxes, window frames, lanais & plastic furniture.