Detail Union is a car wash and auto dent removal service in Monrovia, California, at 1311 S Shamrock Ave, Monrovia. Opening hours: Mon–Fri 10 AM–7 PM · Sat 10 AM–3 PM · Sun Closed. Listed services: Auto repair shop, Auto restoration service, Automobile storage facility, Car detailing service, Window tinting service, Identifies as Black-owned and Wheelchair accessible entrance and Gender-neutral restroom and Appointments recommended. Call (626) 222-0918 to check prices or availability before you go.