Hetchins - are they still about?

Listen, mate, I appreciate your effort in confirming that information I already have, however, I've have put above that what I'm really interested in is an address, and above that I've stated I already have e-mailed them, I was just wondering if anyone knew the address/if the place is still in existed off the top of their heads. Apologies for wasting your "90 seconds" but if you'd bother to read you'd understand what I am looking for.

Calm down, young 'un...