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A blemish on your house siding will constantly prevail, particularly without routine upkeep on your residence. Part of the difficulty of staining is attempting to establish who the culprit is because there are a variety of different kinds. In this article, our goal is to educate you of the type of pollutants most commonly discovered on the side of your home and what tends to create them.

Usual Stains on Exterior Siding


Dirt is one of the most basic discolorations you will see on your house. There are a lot of manners in which dirt connects itself to your exterior siding, a few of which are brought on by the elements. As an example, if there is a hefty tornado with a lot of wind, loosened up dirt and mud can be blown onto the exterior of your house. The other way you can enable dirt to end up on your exterior siding is while you are landscaping or something similar around your house.


If you are seeing green stuff on your residence siding, mainly located on the northside of the residence, it indicates that algae has affixed itself to your exterior siding. Algae is among one of the most typical contaminants that house owners will see on their house. The origins of algae on outside home siding are not always clear, yet among the most common sources comes from bodies of water. As an example, Lake Erie residences experience lots of algal flowering that is escalated by drainage into the lake. This air pollution permits the algae to feed and broaden, then becomes airborne and begins to attach itself to and feed off the dirt on your exterior siding. While algae will not trigger any kind of structural problems, it can install itself right into the home siding if it is not managed.

Mold and Mildew

Mold and mildew on the siding are caused by the buildup of dampness on the exterior siding. The possibility of mold and mildew broadening on house siding increases when the moisture comes from a place of the house that acquires little to no sunlight. Like algae, mold and mildew feed off the dirt that is presently on the exterior siding. Both mold and mildew are fungi, nonetheless, they have various desires. Mold is primarily green and black in color while mildew tends to range from white to yellow. Mold and mildew require to be removed swiftly as a result of the health risks it supplies.

For more information about Top Notch Pressure Washing or to get a free quote for soft washing, house washing, deck cleaning, and/or gutter cleaning, visit our website at or call us at 908-415-4460. We strive to be the best pressure washing service in Woodbridge Township, NJ. You can trust Top Notch Pressure Washing to always provide satisfaction-guaranteed power washing service.