Introduction: Older carers of older people are central to sustainable ageing systems, yet service models often position them as adjuncts to care rather than recipients of care themselves. Embedding carer wellbeing into formal service delivery represents a fundamental shift in how ageing systems recognise and support carers. This study explores service‑level insights from implementing a co‑designed Carer Health and Wellbeing Service (CHWS) for older carers (50+). Methods: A mixed‑methods pre–post design examined service delivery experiences and system‑level learnings during implementation of a multidisciplinary CHWS. Quantitative measures captured carer needs, preparedness, quality of life, and service utilisation, while qualitative data documented carer priorities and workforce reflections. Results: Implementation of the CHWS revealed key insights related to logistics, funding, and sustainability when carer wellbeing is embedded within existing systems. Although unmet need was widely recognised and engagement from carers and service partners was strong, delivering a dedicated carer‑focused service required flexible referral pathways, workforce role negotiation, and cross‑disciplinary partnerships. The CWHS demonstrated demand and system readiness, but the absence of ongoing funding constrained service continuity, highlighting tensions between innovation and sustainable implementation. Conclusion: Embedding carer wellbeing within service delivery offers critical insights into how ageing systems recognise and sustain support for carers. The success of the CHWS raises questions about how carer‑focused services can be resourced, scaled, and re‑implemented as integrated, stable services. As ageing populations grow, this work prompts reflection on where responsibility for carer wellbeing sits and how systems might evolve to better support those who provide care.