Black streaks, algae, and moss on shaded roof slopes are not just ugly — they shorten a roof's life. Soft washing removes them safely at low pressure. Here is what roof cleaning costs in the Farmington area and why soft washing is the only safe way to do it.
Roof soft washing in the Farmington area typically runs about $300 to $700, with most single-story roofs toward the lower end and large or steep roofs toward the upper end. What moves the number:
Roof jobs are quoted after a look at pitch and access. Request a quote and describe your roof type and stories.
Pressure washing a roof strips granules off shingles, cracks tiles, and voids most roofing warranties. Soft washing uses low pressure and a cleaning solution that kills the algae and moss, then gently rinses. Because it kills the growth at the root rather than just knocking it loose, the roof stays clean far longer. It is the method shingle manufacturers and roofing associations recommend.
The dark stains on shaded, north-facing slopes are a roof algae (Gloeocapsa magma) that feeds on shingle filler. In the Farmington area it tends to take hold where dust and moisture collect. Left alone it spreads and holds heat. A soft wash clears it and protects the roof. Pair roof cleaning with a house soft wash and gutter brightening so the whole top of the home matches.
About $300 to $700 for a soft wash, depending on roof size, pitch, material, and how much algae or moss is present.
Yes — low pressure plus a cleaning solution removes algae and moss without damaging shingles or tile, and it keeps your warranty intact.
Roof algae that feeds on shingle filler and spreads on shaded slopes. Soft washing kills it at the root so it stays gone longer.
Because soft washing kills the growth rather than just rinsing it, a clean roof commonly stays clear for several years.
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Bright, even concrete surfaces.
You can also review deck & fence cleaning, commercial pressure washing, and the areas we serve.