Auto Glass by Reggie: Expert Glass Replacement and Repair How long will the replacement take? On average, about an hour to an hour and a half. What is the warranty on the service? Lifetime warranty leaks, stress cracks, and defects as long as the customer owns the vehicle. Can you install in the rain? Yes, as long as the vehicle is brought into the shop. Do you provide same-day service? It depends on the availability of the glass. How long does the car have to sit after installation? We offer a 30-minute driveaway time for all windshields and back glass. How do I know if my windshield needs to be recalibrated? If your vehicle has a Lane departure warning system and lane keep assist. All manufacturers require that your vehicle cameras be recalibrated.