Allen Keller Co is a privately held heavy earthmoving company based in Fredericksburg, Texas. We have been partnering to deli ... ver successful projects throughout the Hill Country and Central Texas for over 60 years. Services offered include: - Hotmix Paving - Bulk and Detailed Earthworks - Road Construction - Ranch Improvements - TxDOT Highway Works - Subdivision Development - Structural Concrete - Crushing - Roadbase and Other Aggregates Allen Keller Co is a member of the Association of General Contractors. read more