When buildings to be constructed on existing slopes we investigate the condition and stability of the slopes, perform stability analysis using computer program and provide written recommendations. For landslide project, we investigate the site, conduct foundation explorations and provide repair recommendations. The investigations may include borings, instrumentations, and monitoring. The repair solution may be drainage improvement, non-structural solution such as geo-synthetic reinforced earth (GRE) or structural repair involving various type of earth retaining structures.