Buildapc

Hi, first time PC builder here. I've done some research and know what parts I want, but pretty much every guide lists either online stores or US based brick and mortar shops. Seeing as its my first time I think a physical location I can go back to would be a good help. But I can't really find much info on what retailers are reputable/operate as chain stores. Not gonna give away too much about my location but any located in the East Midlands of the UK would be great.