Howdy. I live in Binfield and have used BM Autos once for gearbox fluid change. He seemed OK, but for other work, his quotes were ridiculous.
I have been using BMS Surrey (hour drive away) for bushes/service/starter motor replacement etc. It's a way away, but worth it, as they are competitive and do a great job.
I have heard great things about TWG Automotive too.
Whereabouts do you live / what do you drive?