Yes - the UK telephone network is regulated, and any provider can supply services over the formerly-public BT network. ADSL2+ is available up to ~20Mbps; there'

Yes - the UK telephone network is regulated, and any provider can supply services over the formerly-public BT network. ADSL2+ is available up to ~20Mbps; there's also BT's Infinity, which I think is FTTC with VDSL - that's up to about 70Mbps. Virgin Media has a private cable network, which is great if you're not in an oversubscribed area - bandwidth up to 152Mbps is available for low cost. In general the situation is pretty good, with a pretty wide variety of options.