  Higgs sectors extended by electroweakly charged scalars can be explored by
scalar pair production at the LHC. We consider a fermiophobic scenario, with
decays into a pair of gauge bosons, and a fermiophilic one, with decays into
top and bottom quarks. After establishing the current bounds on simplified
models, we focus on an SU(5)/SO(5) composite Higgs model. This first
exploration demonstrates the need for dedicated searches at current and future
colliders.
