Welcome to Robinson Flagstone

Thank you for your interest in our flagstone and bluestone products. Robinson Flagstone has supplied premium Pennsylvania Bluestone (PA Bluestone) nationwide since 1919.

Bluestone offers subtle color and texture variations that create a natural charm. It also provides the strength and durability expected from quality stone. This makes it ideal for indoor and outdoor applications. It works beautifully in residential spaces and performs well in commercial settings too. Natural cleft and thermal bluestone are excellent choices for your next project.

Our main office and stone yard are located in Fort Washington, Pennsylvania. Robinson Flagstone has long been the preferred supplier of Pennsylvania Flagstone (Bluestone) in the Greater Philadelphia area. We also ship across the United States and into Puerto Rico. Since 1919, we have supported architects, contractors, and homeowners with reliable service and quality stone.

With over 100 years of accumulated knowledge—and a continued commitment to product research and development—we bring unmatched expertise to every project. Our fully trained staff in sales, design, and drafting works hand‑in‑hand with the skilled craftsmen who cut each individual stone. From providing technical information and budgeting guidance to offering samples and design concepts, we’re here to support you at every step. Whether your project is a complex architectural installation or a simple backyard upgrade, Robinson Flagstone is honored to be part of your team.