Trusted Mechanic- where to go?

Hi there,
My cars' exhaust needs to be replaced - (it's a 10 year old mini, but driving really well). I called Kearys in Little island-just to get a quote for a replacement exhaust. The first question I was asked was the reg of the car-and was told 'someone' from parts would call me back - 4 days later- nothing- and I cannot be bothered!
Can anybody recommend an 'honest-to-goodness' mechanic - I will order the parts if necessary.