I was quoted £900 by a Vauxhall dealership to strip the gearbox on a Corsa and identify why I was having so much problem changing gear. I phoned A1 Clutches and over the phone they diagnosed the fault as 99% sure to be a clutch problem not a gearbox problem. I booked the car in immediately and within 24 hours they replaced the clutch at a cost of £323. I cannot speak highly enough about the excellent level of service I received not to mention the huge saving on the quote from Vauxhall.
I would highly recommend A1 to anyone.