I will move this thread to the "Find a Game" forum. You will get a better response.
There's a big club in Reading, it may be a bit out of your range.
http://www.readingwargames.co.uk/
Guildford has a club, seems to be mainly historicals but could be worth a try.
http://guildford-wargames.org.uk/info/
I don't know either club from personal experience.