The Gutter Doctors has multiple locations on the SF Peninsula but is one business owned by an individual. THe business does not have an active contractors license as it's been suspended but it's advetised as being licensed. The owner asked to be paid early although the work was not completed, promising to return the next day to complete it. He never returned in spite of numerous phone calls. Second contractor hired to complete the work mentioned the work performed by the Gutter Doctors was very shoddy. I would not recommend this vendor, find an honest contractor instead.