We examined the feasibility of implementing preventive measures to prevent SARS-CoV-2 transmission across 105 English primary schools in summer 2020 via a survey and interviews with headteachers . High rates of implementation of most recommended measures were noted with the exception of requiring 2 m distance for students, fitting hand sanitizers in classrooms and introducing one-way systems in school corridors . Measures such as regular handwashing and stopping assemblies were considered easy to implement . Majorly challenging measures included distancing between individuals (for students : 51%, N = 99; for staff : 34% ; N = 98; for parents : 26%, N = 100), spacing out desks (34%, N = 99), keeping same staff assigned to each student group (33%, N = 97) and staggering break times (25%, N = 99). Rapid implementation was facilitated by staff commitment and communication among stakeholders, but hampered by limitations with guidance received, physical environments, resources, parental adherence and balancing preventive measures with learning . Difficulties with distancing for younger children suggest that smaller bubbles with fewer distancing requirements within these may be a policy option . Schools require further financial, human resource and other support for effective implementation of preventive measures.