The material realization of kagome metals attracted a lot of attention in recent years. The peculiar kagome geometry along with the itinerant carriers cause linearly dispersing bands of Dirac fermions and flat bands. Contrary to the magnetic counterparts dominated by flat-band ferromagnetsm, the AV3Sb5 compounds (A=K, Rb, Cs) were shown to display a charge-density-wave instability as well as superconductivity at ambient pressure. These simple ternary compounds are the first practical candidates for correlated kagome metals where unconventional superconductivity has been predicted theoretically nearly a decade ago. Here, we propose a systematic high-pressure XRD study of AV3Sb5 in order to trace the structural changes and establish their links to the observed properties. We aim to reveal the important structural parameters that stabilize the different CDW and SC states in a non-magnetic kagome metal.