We had our windows cleaned by First Glass Window Cleaning LLC. Their quote was fair, and their work was quality. Our windows look great, including the sills and screens. In fact, they actually wash the screens rather than just brush them we barely notice the screens when we look out our windows! More than that, the person who came to our home was friendly, and considerate of our home. He took care not to track dirt in, and to treat our furniture and such with care.