hire car insurance excess cover

Does anyone know of any car hire companies in the uk with insurance to cover both excess and deposit?

So I only have to pay the rental charge

You’ve got a couple of choices here.
Firstly if you book through a car hire broker for example www.carhire3000.com or www.holidayautos.co.uk they will all offer you a Damage Excess refund package included in the price of your rental. This means if you did have an accident whilst driving the rental car you would be able to claim the excess charge back from them. The costs usually starts from £2.50 per day on top of the rental charge. You will still need to leave the deposit however if you have a credit card the value of the excess is not taken from your card but only pre-authorised. This means the car rental company reserves the right to take up to a specified amount from your card but doesn’t actually take it unless the car is damaged.
Your other choice is to pay a Super Collision Damage Waiver (Super CDW) charge when picking up the car. This reduces your excess down to usually about £100 – £150 however it does usually cost around £8 – £10 per day.

The Damage Excess refund product is probably best if you want to minimise your exposure to extra costs at the best price

No matter what exactly are we planning to buy, all of us have a tendency to discover the cheapest possible solution for our requirements. So, the very same applies to purchase Automobile Insurance.