As you suspected in your other post, this is a steatoda nobilis, one of the false widow species. Females (like this one) tend to stick to, or close to, their webs and are pretty docile. I have a couple above my front door (male & female), one in my bedroom window, a couple of spiderlings in my living rom window frame and one that I have yet to see in my office window (it's tell-tale, haphazard web is pretty large and spun in ther last few days).
I tend to be more wary of ground spiders (stone spiders, sac spiders & mouse spiders), that typically wander the walls in search of prey at night. I relocate these when I find them...false widows I'm happy to leave be.
I did read that there is a colony as far north as Fleetwood Lancs.