I don't like paying for insurance but realistically if someone got in to my garage I couldn't afford to replace half of it without some sort of cover. In the end I went with Pedal Cover for a combined home and contents policy. It's not cheap, but I've got 9 bikes covered in total, 6 of which had seperate policies before I combined them all, so I'm paying less now than I was before
I've also replaced all the garage doors with modern security doors and fitted an alarm and CCTV inside and out, belt and braces 
I've also replaced all the garage doors with modern security doors and fitted an alarm and CCTV inside and out, belt and braces 