Insure your homes maintenance. We offer a 1 Year NO Clog Guarantee with our Gutter Cleaning. If you get a clogged gutter within 1 year of our cleaning, we will come back and take care of it free! Moss, algae and mold decay roofing materials quickly. Cleaning your roof will extend the life of the roof to get the most value out of it and restore it back to its original beauty. We guarantee our roof cleaning for 3 years! Portland is highly prone to moss, algae and mold. Extend the life of your Cedar, Composite, Tile or Slate roof by keeping it moss free.