This study investigated the changes that occur in mothers' language and interactions with their preschool-aged children who have language difficulties when a Spanish language-based intervention was provided within their homes. The intervention was provided using toys and routines that existed within their homes. Three Spanish speaking mothers of Mexican descent participated alongside their preschool children in a language-based intervention. The mothers were interviewed before and after the intervention to understand their experiences and perceptions. They were video recorded interacting with their children during play-based events to document language events between the mothers and their child. Study findings demonstrated that mothers changed in their use of language strategies and had positive opinions about the intervention. To build on culturally responsive interventions, specific factors were identified to promote a positive experience when working with Mexican immigrant mothers.