The Lowcountry's humidity, spring pollen, and salt-marsh air grow mildew and algae fast. Here's how to keep a Charleston exterior clean.
Charleston's charm comes with a climate that is hard on exteriors. Warm Lowcountry humidity, heavy spring pollen, and salt air off the marshes and harbor combine to grow mildew and algae on siding, brick, and roofs, and to leave a green-yellow film on everything each spring.
Shaded north-facing walls, porches, and roofs stay damp longest and green up first. Historic clapboard and stucco hold pollen and mildew in their texture, and brick and concrete grow dark organic stains in the humidity.
The fix is regular, gentle cleaning - not high pressure, which damages old mortar, wood, and paint. A soft-wash house washing in Charleston lifts the pollen film and kills mildew at the root, and most Lowcountry homes benefit from a wash once a year, often after pollen season. See our Charleston pressure washing services for an upfront quote.
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