Building Contractors in Mendon, IL Koenig Electric, Inc.PO Box 77Mendon, IL, 6235187755444538882981979Commerical Buildings Up For SaleElectric ContractorsElectricians Show MoreSee AlsoGeneral ContractorsPainting ContractorsConcrete ContractorsDrywall ContractorsElectriciansPlumbersRoofing Contractors