If you notice any of these, your siding is actively deteriorating. Here's what to look for.
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The most common issue on Long Island. Green algae (Chlorophyta) thrives in our humid climate and appears as bright green streaks or patches, especially on north-facing walls and areas near sprinklers. Left untreated, it releases acids that permanently stain siding.
Black spots or patches on your siding indicate active mold colonization. This isn't just cosmetic — mold spores are actively eating into your siding material and can spread to indoor air quality if left unchecked. Professional soft washing kills mold at the roots.
When you run your finger across your siding and come away with chalky white powder, your siding's protective coating is oxidizing. This happens from UV exposure and means the siding is unprotected. Our soft wash treatment removes the oxidation layer and reveals the original color underneath.
Excessive cobwebs and mud dauber nests indicate your home hasn't been professionally cleaned in too long. These attract more insects and create a cycle of pest buildup. A thorough house washing eliminates all organic debris.
Dark vertical streaks running down from your gutters are caused by "tiger striping" — a combination of oxidized aluminum from the gutter mixing with rainwater. These stains are permanent without professional treatment but respond excellently to our specialized cleaning agents.