Walk around your house and look at the north and shaded sides. If you see a green or grey film on the siding, black streaks under the gutters or dark spots on the trim, that isn't just dirt — it's algae, mildew and mold, and it keeps growing.
What builds up. In the Roanoke Valley, spring pollen coats everything yellow-green by April. Humid summers feed algae and mildew on shaded walls. Road dust and the black streaks from gutters overflowing round it out. Left alone, it gets harder to remove every year.
Why it matters. Algae and mildew hold moisture against siding and trim, which shortens the life of paint and caulk and can stain vinyl permanently. On wood, it speeds rot. And a washed house simply looks years newer — it's one of the cheapest ways to improve curb appeal before a sale.
Pressure matters. Blasting vinyl siding at full pressure can crack it, force water behind it or etch the surface. The right way is lower pressure with the right cleaning solution for the surface, letting it work, then rinsing top to bottom. Brick, concrete walkways and driveways can take more pressure than siding and painted trim.
How often. Once a year is right for most homes. Houses under heavy tree cover, near the lake or with a lot of shade may need it every spring and a touch-up in fall.
Don't forget the rest. The porch, the deck, the walkways, the driveway and the patio all collect the same grime. A full wash covers them in the same visit.
Green Boss washes houses across Roanoke, Salem, Daleville, Bedford and Smith Mountain Lake — and your first house wash with us is 15% off. Call (540) 729-0859 to book.