Despite the growing involvement of grandparents in the care and religious upbringing of grandchildren in Matutu Station, Nyamira SDA Conference, their role in moral and spiritual formation remains largely unsupported and under-researched. Informed by this, the study endeavored to investigate church-based support systems for grandparents giving religious formation and care to grandchildren in Matutu Station. The study was guided by Westerhoff’s Faith Development Theory (FDT) to examine church-based support systems for grandparents caring for grandchildren in Matutu Station, Nyamira SDA Conference. Employing a descriptive research design, the study explored the challenges and barriers grandparents face in fulfilling this role. The target population consisted of 1,066 respondents, from which a sample size of 396 was determined using Glenn’s (1992) formula. Data were collected through questionnaires, interviews, and focus group discussions, and analyzed using Likert scale techniques and verbatim thematic analysis. The study found that while some church initiatives offer limited support, 71.1% of respondents affirmed home visits by the Family Life Ministry and 68.1% reported that Sabbath School programs provide biblical instruction and spiritual nurture. Critical gaps exist, with 88.1% reporting no targeted pastoral counseling, 77.8% noting the absence of mentorship programs, 62.2% indicating no fellowship support groups, 76.3% reporting a lack of referral services, 94.8% citing no financial or material assistance, and 58.0% highlighting the absence of religious education materials for grandparents, underscoring the need for structured, intentional, and role-specific support mechanisms in Matutu Station.