Yes, it does exist but as you say Suzie, you have to check with the company scheme as not everyone offers it.
Back to the OP, income protection is benefit that has a maximum payout. The most cover you can have is 75% of income less State disability or any other income protection benefits. So if you took out cover today and went on a claim, they would only pay out 9% of salary on the second policy.
If you have an illness between now and taking out a new policy, unless it is very serious e.g. cancer, you will have the illness excluded from cover. Insurers will not cover existing illnesses.
Unless you have a continuation option under the terms of the group scheme, your options aren't great.
Steven
http://www.bluewaterfp.ie (www.bluewaterfp.ie)