The photo isn't great but this does look like it is possibly a male Steatoda nobilis. Males don't feed when mature, in the coming months he will likely die off naturally. Females tend to stick to their webs, close to a bolt hole, so even if these survive the Winter, they will most likely be in hiding during the colder weather and reappear in the Spring.
If they are established in your area, then there isn't really much to do. You can remove them (or have them removed) but they may well be replaced eventually. You may run a higher risk of a bite whilst removing them?
Their bite isn't really any worse than a bee sting, be aware they are there, but there is no reason to live in fear of them.You may well have been living amongst them for many years.
Thanks Mark, I live in Luton Beds and wouldn't have thought anything of it until seeing all the news coverage. My son is always in the garage lately messing around building his bike so I wanted to check. I've told him to just be aware with picking things up in there, and careful if he sees it again or any others again.