Roof Cleaning
Roof Cleaning in Berkshire County, Western MA & New York's Capital Region
Black streaks, moss and algae removed with a soft wash treatment that protects the shingle — the method asphalt manufacturers actually recommend.
What causes black streaks on a roof
Those dark stains are gloeocapsa magma, an airborne algae that feeds on the limestone filler in asphalt shingles. It holds moisture against the roof, shortens shingle life and drives up cooling costs. Left alone it spreads into moss, which lifts shingle edges and pushes water sideways under the courses.
Why soft washing is the only safe method
High pressure strips the protective granules off asphalt shingles and voids most warranties. We apply a low-pressure cleaning solution that kills the organism, then let rain and time carry the residue away. The roof keeps its granules and the growth does not come straight back.
Our roof cleaning process
Each roof is walked and assessed before anything is applied.
- Landscaping, beds and downspout outlets protected
- Low-pressure treatment applied across the affected planes
- Moss and heavy buildup addressed by hand where needed
- Gutters and surrounding surfaces rinsed down
- Final walk-around with the homeowner
Protect the roof you already paid for
A cleaning costs a fraction of a replacement and can add years to a shingle roof. On homes in Lenox, Dalton, the Pioneer Valley and the shaded hill towns of our service area we generally suggest a look every three to five years.
Roof Cleaning questions
No. Soft washing is the method asphalt shingle manufacturers recommend. Pressure washing is what voids warranties, and we do not pressure wash roofs.
Ready When You Are
Ready for roof cleaning?
Call or send a note and we'll return a written, no-obligation quote — usually the same day.