Never accept the first renewal quote. They also try it on to catch those too lazy and gullible to bother shopping around.
Last renewal mine doubled, did have an unresolved claim, so expected a bit of rise. Still, I gave them a bell and haggled, upped my annual mileage by 3k and blagged a renewal for just £20 more than previous year! Then couple of months later, when claim was resolved in my favour I got a nice £50 cheque refunded.