Quick answer
In New Jersey, you should soft-wash your house about once a year. The Jersey Shore's salt air, humidity, and tree cover accelerate mold and algae growth, so an annual cleaning prevents permanent staining. Homes in heavy shade or near the water may benefit from cleaning every 8–10 months.
Wait too long and mildew stains set into the siding permanently. Here's the right cadence for Ocean County's coastal climate.
What affects the price
- Proximity to the bay or ocean (salt accelerates growth)
- Tree cover & shade (north-facing walls grow algae fastest)
- Siding type and color
- Whether the last wash actually killed the mold at the root
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