D & M Exteriors, LLC is an owner operated seamless gutter installation company serving Southern NH and Maine - including Dover, Rochester, Portsmouth, and the greater Seacoast. With over twenty years of experience and knowledge, we educate our customers on all our products and installation. We want the customer to be well-informed and confident knowing they chose the right company. We offer the best warranty in the industry, and our commitment to customer service is unrivaled. We work to ensure our customers' needs are not only understood, but that our services meet our clients' high expectations.