• Keller Engineers

    • Engineers
    420 Allegheny Street
    Hollidaysburg, PA 16648
    (814) 696-7430
    (814) 696-0150 (fax)
    • About

      Since 1991 KEI has provided full-service Civil and Structural Engineering and Surveying services to the public and private sectors. Primary areas include site development, transporation, water/wastewa