I don't see what harm there would be in letting your insurance company know - its not as if they're going to hold it against you that someone else crashed into your parked car.
.>>>> They dont need to know. It doesnt affect them.
Also surely its his insurance company that should be dealing with this. Why would your insurance need to get involved at all? He caused the damage, the bare legal minimum he should have is 3rd party which he should now be using to take care of this.
Unless I missed something?
>>>>> Having got a quote now and agreed its over his cash threshold, we have agreed to go through his insurance. They have been contacted.
Edit: Sorry I read over your posts a bit too quickly the first time around. Just read you saying you didn't want to screw the guy over. Thats pretty sound of you but in fairness if there was chassis damage I would be hoping that the car would be written off.
>>>>> Its the chassis "legs" which can be re aligned Im told. Its planned to be done with a Skoda main dealer. They wouldnt do it unless it was cool to do so I trust.
I'm sure body shop repairs can be good but knowing you're driving a car a which may have its structural integrity compromised in addition to having to inform potential buyers later on that it was in a crash would be a big price to pay.