No decent warranty company will insist on 6 month service intervals.
Warranties are there for the unexpected failures that could cost the owner dearly and a warranty company can only insist, quite rightly, that the car has been serviced according to manufacturer recommended intervals.
There are a number of decent companies out there, so a bit of research would be a valuable investment. My business provides the extended warranty programme for many manufacturers, so feel free to name companies here and I'll happily give you my opinion on them.
Interestingly, I spoke to Charles Morgan a few years ago about a Morgan branded extended warranty. He just couldn't understand what it was and kept saying Morgan's don't fail. He left the company soon after.....
