Seamless gutters have so many advantages over the old gutter systems, it's a wonder that anyone would use anything else. Seamless gutters offer the obvious advantage of no seams! This means that you don't have to worry about water dripping between the seams anymore. California Gutterworks Inc. was formerly known as Armour Roofing. We have been providing service to the citizens of Northern California area since 2001. Our gutter technicians have over 16 years of experience in the roofing and gutter industry.