Need an ignition interlock device near Guilford? Intoxalock is available at Guilford Automotive, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.Guilford Automotive is home to the best used car inventory. They offer financing and vehicles for all budgets and brands. Visit their store on Boston Post Road in Guilford, Connecticut. Guilford Automotive is one of our local Intoxalock certified locations with convenient hours, prices and services near you. As a certified Intoxalock provider, you can count on reliable, quality service. Intoxalock certified Guilford Automotive in 2016. Their technicians are highly qualified and are trusted to install, deinstall, and service the ignition interlock. Call to schedule an appointment to get your device installed, hassle free.