The expressions Excess , Deductible or Non-Waiver are used by different companies in different parts of the world, but actually mean the same thing.
When a car is hired the insurance that comes with it, whether packaged in or bought separately, has an 'excess' which leaves the hirer with the responsibility for the first few hundred (or few thousand) pounds of a claim. This excess is also called the deductible in the US and other parts of the world.
It is this excess, along with parts of the car that are excluded from any standard car hire insurance policy, such as windows, wheels, tyres or the underside of the vehicle, that are covered by the excess insurance offered by companies on the MoneyMaxim car hire insurance comparison service
Companies often offer a Super CDW which removes any excess or deductible that you may be liable for.
If you have any queries do call a member of the MoneyMaxim car hire insurance team.