Why should you choose us? Diamond Gutters LLC is a locally owned gutter company with deep roots in the Washington, DC area. With over a decade of experience, special training and certifications, you can rest assured we'll provide the best possible service. We pride ourselves on getting to each of our clients fast and completing our work the same day. Tired of contractors leaving you in the dark? We value open and honest communication at all times. We'll work closely with you to make sure you understand the soft spots, slopes and other key factors that might influence your roofing or gutter system.