One of the objectives of the United Nations Millennium Development Goals (MDGs) was to reduce MMR by an average of 5.5% every year over the period between1990–2015. As a result, the first international meeting focusing on scaling up of the midwifery workforce at community level, drafted a Call to Action for all countries with high Maternal Mortality Rate to embark on intensified action to scale up midwifery care at the community level. Community health volunteers have been increasingly recognized as integral members of primary health care teams, especially in poor and underserved communities. The objective of this study was to evaluate the contribution of community health volunteers in promotion of skilled birth attendance in Siaya County. This was a cross-sectional study that used both quantitative and qualitative data in six sub-counties of Siaya County. The study involved facilities as well as sampled mothers who had given birth within the previous year and who were served by the four sampled health facilities. It also involved skilled birth attendants working at the health care facilities of the primary levels of the health care system as well as the CHVs attached to the selected health care facilities. The services of the CHVs contributed to the improved skilled birth attendance in Siaya County. Their roles include record keeping, follow-up care, health education, facilitating referral and promoting skilled birth attendance. They are however faced by insecurity, health infrastructure gaps and client related challenges. The CHVs may be relied upon to promote skilled birth attendance at the primary level of the health system.