The companies house listing is for Northleach Close.

Both addresses are private residential.
UK Info has nothing for 73 Upper Field Close, but returns this for Northleach.
Mr,Chatwin,Clive N,,,,,86,,Northleach Close,,,B98 8RB,,Redditch,Worcestershire
Mrs,Chatwin,Alison J,,,,,86,,Northleach Close,,,B98 8RB,,Redditch,Worcestershire
No number listed.

A BT search for the Chatwins gives nothing.

http://www.applegate.co.uk/company/13/73/068.htm shows the managing director as Andy Brain at the Upr Fld address with a phone number 0845 094 1186.
UK info has no listing for him there.

The distance between both addresses is about 200 yds across a patch of grass.

A BT search for A Brain (been looking for one for ages!) in Redditch gives its nearest option of
A Brain
TEL: 01527 ******
70 Stratford Rd, Bromsgrove B60 1AU
UK Info confirms his name is Andrew
This is about 8.5 miles from the previous 2.

Googling G7comms gives several references, most poor. This one, http://www.70mhz.org/forum/profile.php?mode=viewprofile&u=964&sid=091b3c78c4695e... shows the director as being someone called Clive at clivec420@hotmail.com.
Thus confirming the Clive at Northleach.

Strangely, neither BT nor Thomweb has a listing for G7comms.

Have a reread, and you'll find it's Chatwin