Not usually hospitals, they are in private ultrasound clinics such as Babybond (part of Ultrasound Direct). Mostly they offer 4d scans later in pregnancy but most will also do early reassurance 2d scans. Babybond charge £99 for this but you might find somewhere cheaper.
Google is the best thing, google "private ultrasound early pregnancy plus the name of a large town near to you"
https://www.firstchoicebabyscan.com/packages.html
this place in warrington will do a scan from 8 weeks for £65