Roof Cleaning and Roof Repair in Sammamish, Wa
Moss Patrol is your one stop source for roof cleaning, moss removal, and roof repairs. Our low pressure air cleaning system extends the life of your roof by up to 50%. You can rest assured that, with Moss Patrol, your home or business is in good hands.    "Gentle air roof cleaning is our specialty!"

 Moss and mildew can drastically reduce the service life of shake, tile, asphalt shingles, and other roofing materials. The experts at Moss Patrol have over 10 years of experience cleaning, treating, repairing and protecting roofs all over Washington.
So how exactly does moss damage your roof?
Moss holds moisture onto your roof loosening the surface tension of the tar and shedding granules that protect the structure from uv ray's and inevitable hot/cold cycles.
Moss can actually lead to roof leaks. Moss will start growing under the edge of the shingles, forming dams that slow water run off, re-directing it into the roofs sheathing.
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Before Cleaning
After Cleaning
Pressure washing and wire brushing will damage your roof! The pressure needed to give your roof that "NEW LOOK" causes two significant problems:
  • It strips away the surface on the shingles making them thinner and more prone to weather damage.
  • It causes stress fractures in the roof shingles which will develop into cracks and split over time.
Towable & Truck Mounted Compressors
Leak Repair