On car wheel balancing - York or Barnsley

[TomTheTyke]

My car (humble 2005 Fiesta Ghia, not the most 'PH' I know)has had an ongoing problem for a about a year really; wheel wobble at motorway speeds. Now the car has aftermarket alloys (don't judge me too harshly) but we rules them out by getting a new set from the supplier. I would say it does seem better with the original alloys but it's still there and anyway it's hard to judge stuff like this in degrees. It's not the worst problem and I can live with it but I would like it sorted if possible so before moving onto getting bushes, ball joints etc. changed I want to have the wheels balanced on the car, they have been balanced off it numerous times (at least the old set of alloys were, to no avail).

So can anyone recommend somewhere that will do this, not to far from Barnsley or York as they are my home and university locations, you're welcome to guess which way round that is.

Thanks a lot,
Tom.