<p>Remanufacturing restores used products to like-new condition, enabling value retention within circular business models. Product-as-a-Service (PaaS) represents a servitised business model that allows companies to generate value by actively managing product lifecycles. However, the integration of remanufacturing into PaaS remains limited, particularly for electrical and electronic equipment (EEE) in consumer markets (B2C). This paper introduces a novel remanufacturing capacity building model Rem-Cap-Up, designed to help companies scale up remanufacturing within PaaS frameworks for EEE in B2C contexts. The model addresses both individual and organisational dimensions. At the individual level, it identifies key employee competencies that are required for effective remanufacturing. At the organisational level, it outlines the foundational elements necessary to implement a PaaS business model, including process design and the allocation of appropriate resources to support a cost-effective and environmentally sustainable remanufacturing process. The model includes the critical raw materials perspective. The model is developed with a mixed method approach, including systematic literature review, expert interviews, and case study with process observation. The novel contribution of this paper, is an integrated approach to aligning remanufacturing capacity building with the implementation of circular business models, particularly PaaS. The proposed novel approach offers an assessment of a current capability level (as-is) in a company, and supports its structured transition to the to-be state for remanufacturing in PaaS settings. </p>