The ENHANCE project uses a mixed-methods approach to evaluate the feasibility, acceptability, and effectiveness of a peer-led integrated HIV and NCD testing model among migrant populations in Berlin, London, Brussels, and Malmö. The quantitative component involves integrated HIV, hypertension, diabetes, and chronic kidney disease screening among 320 adult migrants, supported by pre- and post-intervention questionnaires. The qualitative component includes interviews and focus group discussions with migrants, peer workers, healthcare providers, and community stakeholders to explore experiences, stigma, barriers, facilitators, and perceptions of the intervention. Quantitative and qualitative findings are combined to provide comprehensive evidence on the potential of community-based integrated HIV–NCD testing to improve health outcomes among migrants in Europe.