http://www.swiftcover.com/carinsurance/policy/windscreen-window-damage/
Section D - Windscreen and Window Damage
We will pay:
To repair or replace broken glass in your car's windscreen or windows, and any scratching to the bodywork caused by broken glass, as long as there has not been any other loss or damage. We may choose to repair your car with parts that may not have been made by the car's manufacturer but are of a similar standard. Any payment for replacement of glass under this section will not reduce your No Claims Discount,
(though at your next renewal you will no longer be eligible for any increase in your No Claims Discount according to our declared scale). However, in order to obtain the full benefit under this section the work must only be undertaken by our approved windscreen repairer contactable via Swift Glass Claims on 0871 231 2310*.