Quandel was established in 1882 in Minersville, Schuylkill County, Pennsylvania and is presently under the leadership of fift ... h generation management. We have been providing our services for 138 years, including construction management, general construction, design-build services, engineering and development. In addition to our corporate headquarters in Harrisburg, Pennsylvania, we maintain full-service offices in Minersville, Wormleysburg, Pottsville, Scranton and Bethlehem, Pennsylvania and Abingdon, Maryland. http://www.quandel.com read more