We contacted Window World last Spring regarding gutter covers to help keep debris out of our gutters. We own a 2 story home in Wilsonville, which is surrounded by 4 big trees, and in the Fall wet leaves come down in bunches - completely clogging our downspouts. The only way we could clear them was to climb up on a 2 story ladder in the freezing, wet weather and scoop them out by hand. Since having the gutter covers installed, our gutters and downspouts are completely clear, and we've been able to enjoy staying inside where it's dry and warm. I would highly reccommend Window World as they were very professional, on-time, kept their promises, and did a great job.