Yes, you may be right about individual Autoglass outlets - trouble ultimately is with insurance cover. LV will not cover, say, fitting of original windscreen by dealer. The policy specifies using Autoglass, so if you want dealer to fit, it falls outside of the policy cover. I had a very thorough and detailed argument over the A8 windscreen on exactly this issue, both with LV and Autoglass, but with no success.