The BASE Group is Denvers most innovative rope access team consist of two entities both well versed in their respected fields and capable of providing an array of rope access solutions to elevated structures with precision, excellent craftsmanship and safety. BASE Painters - Coatings application specialists. Solutions for buildings, tanks, structures and towers. BASE Rope Access - Large banner hanging, re-lamping, cleaning & roof top flagpole climbing. Utilizing state of the art rope access techniques to service buildings, towers, structures.