Spring pollen and year-round mildew leave Charleston siding green and yellow. Here's why a garden hose won't fix it and how a soft-wash actually removes it.
Every spring the Lowcountry turns yellow. Pine and oak pollen coats cars, porches, and siding across Charleston, and it does more than look bad: that film traps moisture and feeds the mildew and algae that thrive in the region's humidity. By early summer many homes have gone from yellow to green, with dark organic streaks running down vinyl, stucco, brick, and fiber-cement siding.
Most homeowners try a garden hose or a rented pressure washer first, and both fall short. A hose does not have the force or the cleaning agent to break the bond between mildew and the siding, so the green comes right back. A pressure washer can strip the surface film but drives water behind the siding and can crack stucco, gouge wood, or blast the paint off trim. Neither one kills the algae and mildew at the root, which is why the growth returns within weeks.
Soft-washing is the method built for this problem. Low pressure carries a professional cleaning solution onto the siding, where it dissolves the pollen film and kills the mildew, algae, and mold spores at the source. After a short dwell time the surface is rinsed clean, and because the organisms are dead rather than just knocked loose, the siding stays clean far longer than a rinse or a pressure blast ever would.
The best time to wash off pollen and mildew is right after pollen season eases, usually late spring, so you clear the film before summer humidity turns it into heavy green growth. A single well-timed wash a year keeps most Charleston homes clean through the seasons. Our soft-wash house washing service is designed for exactly this, and you can reach us through our Charleston pressure washing page for a quote.
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