A needs analysis conducted at a manufacturing facility indicated quality compromises in the case of welds due to the behaviours of welders. The academic partner co-created a behavioural modification program for welders in collaboration with peers in the industry. The program was offered to a batch of welders, and its impact was studied. The Transtheoretical Model (TTM) of behavioural change was deployed to bring about change in health consciousness. The ADDIE (Analyse, Design, Develop, Implement, and Evaluate) instructional design model was used for the training program. The training evaluation was carried out using the Kirkpatrick levels. The industry partner and academic partner jointly worked on the program for the benefit of welders. Welder behaviour was modified after the training program, with the modification being influenced by addressing the health aspects of welders. It was found that modifying health aspects led to improvements in work quality.