Recommendations for mechanics/garages in the Berkshire, UK area

[klaudivs]

Hi all,

I'm ready to throw in the towel and admit defeat, I need someone to deep dive my 13 plate estate Focus 1.6 Tdci

I bought it about a year and a half ago at 133k miles and now it sits at 162k miles, and it has been pretty much trouble free, but I do take care of the servicing myself (disks, pads, oil, filters ...that sort of things) 

Lately I noticed a vibration getting stronger at motorway speeds and just can't figure out the cause of it.(I'm guessing driveshaft, but that's about it)

 I would be grateful for a recommendation  for mechanics/garages in the Berkshire, UK area or within reasonable distance that has a good knowledge of drivetrains  that can help me out.

Please don't point me to Google, 5star reviews are dime a dozen nowadays, I'm looking for tried and trusted places that you used and were happy with the result 

Thanks!!