Fully insured soft washing and pressure washing for Sterling homes. Over 500 Northern Virginia homes serviced in 2026 — free instant quotes and same-week appointments.
Call (571) 463-2680 Get a free quoteSterling has a lot of established neighbourhoods where mature trees sit right over the roofline. That shade keeps roofs damp, and damp roofs in Northern Virginia grow the black streaking you see on so many homes around Countryside and Cascades.
We serve Countryside, Cascades, Sugarland Run, Lowes Island and Great Falls Forest and the surrounding Loudoun County area.
Those black streaks aren't dirt — they're gloeocapsa magma, a hardy algae that feeds on the limestone filler in asphalt shingles. Pressure washing a roof would strip the granules and shorten its life, so we use a low-pressure soft wash that kills the organism at the root.
Roof cleaning and streak removal, house washing, concrete and driveway cleaning, deck and fence washing, gutters and windows.
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Call (571) 463-2680 Request a quote onlineYes — we cover Sterling and the surrounding Loudoun County area, including Countryside, Cascades, Sugarland Run, Lowes Island and Great Falls Forest.
Yes. High pressure strips the protective granules off asphalt shingles and shortens the life of the roof. Soft washing uses low pressure and a cleaning solution that kills the algae at the root, so the shingles are never damaged.
That's gloeocapsa magma — an algae that feeds on the limestone filler in asphalt shingles. It thrives in Northern Virginia's humidity and shade, and it won't rinse away with rain. It has to be treated at the root or it comes straight back.
Most homes here do well on a wash every 12–18 months. If you've got heavy tree cover or north-facing walls that stay damp, annually keeps it looking right.