You probably didn't realise it, but there is an enormous range of sparkling wine produced in Shropshire and close by - and most of it is in that range that you might consider 'affordable'.
Below is a table that I've brought together and I'm not even sure I've got everything covered yet.
From my own experience, I've tasted the Carden Park Estate Reserve, Hencote's Evolution Sparkling, Kerry Vale's Sparkling Red, Rodington's Sparkling White, and Rowton's Pink Fizz and they're all very palatable.
I've been doing tours and tasting at Hencote recently and I know from the feedback, that the Evolution is going down very nicely with the customers there.
All of the fizz below is available on the vineyards' individual websites or, in most cases, a personal visit.