WEST is a full tungsten (W) superconducting, water cooled tokamak, targeted at mastering long pulse operation in a metallic environment. It is equipped with two divertors at the top and bottom of the machine. As the new holding structures of the top divertor are occupying most of the space in the vertical ports, it was necessary to redesign the vertical bolometer and install it in-vessel to recover the view of the full poloidal section. We present here the solutions which were adopted to fulfill this goal.