Grouting is an effective way to improve the engineering properties of the soil to reduce soil permeability. In this research, an attempt has been made to study on effectiveness of grouting materials on seepage reduction. The purpose of this paper is to focus on the efficiency of current available grouting materials and techniques from construction, environmental and economical point of view. The seepage reduction usually accomplished by either chemical grouting or cementious grouting using ultrafine cement. In addition, the study shows a comparison between using grouting materials according to their degree of permeability reduction and cost. The comparison is made based on achieving a permeability reduction up to 10-7 m/Sec. The application of seepage reduction is based on the permeation grouting using grout curtain installation. The computer program (SEEP/W) is employed to model of dam rested on the sandy soil, using grout curtain to reduce seepage quantity and hydraulic gradient by different grouting materials. This analysis focuses on defining the best material for seepage control from the economical, installation, environmental effect safety interest.