The forthcoming insurance companies offer collision insurances: Insurance4CarHire, Auto Rental Collision Damage Waiver, Rental Cars and the Collision Damage Waiver, etc.
collission damage with no excess
Collision Damage Waiver
Usually the waiver only reduces the excess you pay.
That's your Collision Damage Waiver -- the insurance you purchased on the rental when you rented it.
The CDW (Collision Damage Waiver) insurance covers the following: Liability, collision, theft and other damage. This sort of insurance is offered by car rental companies.
They sell Excess Insurance for rental cars, which covers additonal cases such as theft or CWD (Collision Damage Waiver) which the normal rental insurance might not cover.
This document would be available from the RV rental company that you are dealing with as each company probably has theirs slightly altered for their company.
No, you can not purchase CDW fro a rental from an insurance company. It has to be purchased through the rental agent. CDW stands for collision damage waiver.
First, if you have comprehensive and collision coverage on your own vehicle then check with your own insurance carrier to see if that will automatically extend to the vehicle you will be renting (as that would save you a lot of money). If it does not extend (and you have liability insurance) then you will need to get the rental company's property damage insurance (sometimes called collision damage waiver).
CDW/LDW is a waiver, the rental car companies agrees not to go after the renter for any damages to the rental car (regardless of fault) if you purchase the waiver for a daily fee. As long as the renter does not violate the contract. If someone else is at fault they will then go after that person. It only covers the rental car, nothing else is covered
"Damage Waiver".