Your horsebox is more than just a means of transporting your horse. That's why horsebox insurance should be specifically developed with your needs in mind.

Things to look out for with horsebox insurance cover.

For an additional premium you may be able to insure personal possessions kept in your horsebox usually up to £2000 (maybe subject to a theft excess).
Optional Horsebox Road Rescue Service which can arrange emergency transport and stabling of horses.
Consider the type of cover you need carefully, Third Party, Fire & Theft or
Comprehensive