Tinting your windows is an easier way to maintain anonymity than stuffing your car into a ski mask. Cultivate mystique with this Groupon. Choose Between Two Options $99 for window tinting for the back window and all rear car windows (a $200 value) $119 for window tinting for the front-door, back, and all rear car windows (a $240 value) Technicians tint windows with Global Window Films, which they back with a limited lifetime warranty. In accordance with state law, the two front-door windows will be tinted with clear, UV-protected films. These can be substituted for a darker shade of tint at the clientâ€™s request.