Our three step process along with our professional cleaning solution (biodegradable and environmentally friendly) will get your windows cleaned to absolute perfection without streaks! If leaves and debris from nearby trees collect in the gutters, it can prevent the water from draining properly and can lead to basement leaking, foundation problems, and ceiling damage. Rainwater from your roof drains through the patented Perf-Flow Filtration System. When installed on your existing gutters, debris such as Leaves, pine needles, twigs, seedlings, cannot enter into the gutter system.