Some Trimlight dealers offer DIY kits, but choosing that path voids the lifetime product warranty because the install isn’t done by an authorized dealer. Beyond the warranty math, the safety math doesn’t work either — a typical Tennessee two-story home means a 28-foot ladder, complex gable geometry, and roofline elevation that ladder-injury statistics consistently warn against. Northpoint Trimlight’s authorized install for a Williamson County home runs about the same as one severe-injury ER visit.