Houston Landscape Pros has competitive prices when it comes to flagstone landscape cost. With that in mind, we still make our flagstone installation as affordable as possible, with materials and labor included. Also, keep in mind the price showed is only a base price. Therefore, the flagstone install cost may vary when using a more expensive flagstone type or if the landscape project area has any difficulties. In addition, we can give better deals if you are also getting other types of landscaping done. It all depends on what landscape installation is best for your landscape design.