The Story
When Tom Markowitz started Keystone Build Group in 2005, the vision was simple: bring integrity and innovation to commercial construction in Pittsburgh. With degrees in civil engineering and a background managing major projects for national firms, Tom saw an opportunity to build something different—a company where client relationships and craftsmanship come first. Today, Keystone Build is recognized as Pittsburgh's leading general contractor for complex commercial projects.
The firm has completed over $120 million in projects, ranging from the adaptive reuse of historic industrial buildings to ground-up commercial development. Their work includes the transformation of the Riverfront warehouse into modern office space, the renovation of Smallman Street's mixed-use corridors, and several major institutional projects. Keystone's reputation is built on delivering projects on time, within budget, and with attention to structural detail.
From the crew superintendents to the project managers, Keystone Build employs some of the most experienced construction professionals in Western Pennsylvania. The company maintains close relationships with subcontractors and suppliers across the region, ensuring quality at every phase.
What Makes It Pittsburgh
Pittsburgh built its fortune on steel and structure. That legacy informs everything Keystone does. The company understands the bones of Pittsburgh's buildings—the industrial warehouses, the mills, the historic masonry—and knows how to preserve them while adapting them for modern use. That's the work of restoring a city's character while building its future.
Tom remains deeply involved in every project and maintains a commitment to hiring locally and training the next generation of Pittsburgh builders.