Arboretum Cohousing hired Guttersmiths to install leaf screens around their entire group of buildings. This was the largest leaf screen job that I’ve taken on to date. They weighed the costs of having the gutters cleaned every year against the cost of screens, and decided on the screens. I try to keep the cost of leaf screens within reason because, frankly, none of the brands are 100%. Remember when choosing screens that there is not necessarily a correlation between price and quality. I would stay away from the least expensive (Home Depot screens) and the more pricey brands.