Time of the year for me too. I paid £834 last year with Admiral (late 30s, parking on street with 8 years NCB) due to the Registered Keeper being a company and not a person. To bring the quotes down I added my elderly mother and her partner to the policy.
Over the weekend I checked on Comparethemarket over the weekend and it was showing quotes for around £1000, over 20% increase. The best quote came from Flow (underwritten by LV) and oddly enough I did not get any quotes returned from Admiral et al.
Rang Admiral this morning and the initial quote was £1009, not bad I thought, but I pushed to see if they could do better. They gave the usual "Oh we don't want to lose a valued customer like you" and transferred me to the "loyalty team". They asked the current value of the car, I gave them the figure provided by the other insurers of £42k, they then asked if I wanted to take the named drivers off the policy if they rarely drive the car (they don't drive it at all), I said let's try it. To my surprise the quote came back at £824, £10 cheaper than the previous year. I always thought having named drivers on the policy helped bring the quote down, but in this case it inflated it - maybe due to their age. I then went back to Comparethemarket, removed the named drivers and managed to get a quote back from Churchill for £846 that had a couple of additional extras thrown in like legal aid and vandalism cover, etc. Nevertheless, decided to stick with Admiral as I wasn't fussed with the legal aid for an extra £22.