Service innovation for adults experiencing mental illness and homelessness typically involves shifting from treatment-led, staircase models toward recovery-oriented, Housing-First models. Aligning frontline service providers' values to those embedded within newer models is an important, but under-investigated, influence on the innovation process. To assess values alignment in this context, we conducted semi-structured qualitative interviews with frontline providers in staircase services in Ireland (n = 50). Data showed that, while their values mostly aligned to the treatment-led model, there was meaningful evidence of more recovery-oriented values, too. Strategies to enhance innovation through values-alignment are discussed.