BackgroundThe 2014–2016 Ebola outbreak exposed the poor laboratory systems in Sierra Leone. Immense needs were recognised across all areas, from facilities, diagnostic capacity, supplies, trained personnel to quality assurance mechanisms.ObjectiveWe aimed to describe the first year of a comprehensive intervention, which started in 2015, in a public hospital’s general laboratory serving a population of over 500 000 in a rural district.MethodsThe intervention focused on (1) supporting local authorities and healthcare workers in policy implementation and developing procedures to enhance access to services, (2) addressing gaps by investing in infrastructure, supplies, and equipment, (3) development of quality assurance mechanisms via mentorship, bench-side training, and the introduction of quality control and information systems. All work was performed alongside counterparts from the Ministry of Health and Sanitation.ResultsWe observed a strong increase in patient visits and inpatient and outpatient testing volumes. Novel techniques and procedures were taken up well by staff, leading to improved and expanded service and safety, laying foundations for further improvements.ConclusionThis comprehensive approach was successful and the results suggest an increase in trust from patients and healthcare workers.