Replacing or installing new home siding is a big investment, and unless you’re in the business of flipping houses, it’s the kind of home project you hope to do once—maybe twice—in your lifetime. There ...

Spray the siding with a garden hose. Scrub with a soft-bristled brush to remove debris. Never use metal brushes or scrapers to clean vinyl siding. Vinyl is tough, but “it will scratch,” Dobson says.