Excavation Contractors in Grinnell, IA Schoon Construction Inc603 Penrose StGrinnell, IA, 501126412368395Construction CompaniesContractorsExcavation ContractorsGeneral ContractorsHome BuildersRemodeling ContractorsGrattan Backhoe Service546 320th AveGrinnell, IA, 501126412364513Excavation ContractorsGruhn Backhoe & Tiling652 Newburg RdGrinnell, IA, 501126419903028Excavation ContractorsShow More