Excavation Contractors in Downey, CA Dugan's Engineering12222 Woodruff AveDowney, CA, 902415628031189Excavation ContractorsGrading ContractorsBadger Daylighting Inc9333 Stewart And Gray RdDowney, CA, 902415629233888Excavation ContractorsBill's Backhoe Service13203 Barlin AveDowney, CA, 902425626303162Excavation ContractorsCity to City8607 Imperial HwyDowney, CA, 902425628699194Excavation ContractorsShow MoreSee AlsoGrading Contractors