Keystone Custom Decks is a patio and deck builder that creates our clients’ dream outdoor living spaces — right in their backyards. A true partner in your outdoor living renovation, we work to ensure your satisfaction from the initial brainstorming meetings, throughout the design phase, and to the end of the installation. With locations in Lancaster PA and Keuka Park NY, Keystone Custom Decks serves as one of the most well-regarded deck builders in Lancaster and Chester County PA — as well as upstate New York. As expert patio and deck contractors, we have decades of experience installing gorgeous decks, porches, screened-in-porches, patios, hardscapes, pergolas, railings, and more. To create truly luxurious outdoor living spaces, we complement our builds with a variety of outdoor living products, such as fire pits and fire structures. From our superior products to our installation process, discover what makes Keystone Custom Decks the Lancaster and Chester County Deck builder to know.