I will explore the generation of gravitational wave (GW) signals from first-order phase transitions in supersymmetry-breaking sectors. Such phase transitions occur along a pseudo-flat direction universally related to supersymmetry (SUSY) breaking in hidden sectors that spontaneously break R-symmetry. The potential along this pseudo-flat direction imbues the phase transition with a number of novel properties, including a nucleation temperature well below the scale of heavy states and significant friction induced by the same heavy states as they pass through bubble walls. I will show that, in low-energy SUSY-breaking scenarios, the frequency of the GW signal arising from such a phase transition lies within the reach of future interferometers given existing cosmological constraints on the gravitino abundance. I will also discuss how, once a mediation scheme is specified, the frequency of the GW peak correlates with the superpartner spectrum and with future collider probes of SUSY.