Stewart Companies

Principio Asphalt Plant is Now Open for Business!

Principio Asphalt is excited to announce its new asphalt plant in Cecil County, MD, is operational and now open for business.  The plant is running smoothly, and quality asphalt is now available… and the customer service team is ready to handle your orders. Please reach out today to discuss your needs and obtain pricing. 

Sales:  888.962.7742

Plant:  443.545.3460


Hours:  M-F 6A – 4P, closed Sat/Sun


To learn more about available products and general directions, please visit