I had my wheel alignment and camber done at Wynnes Motors (Birchgrove) and asked if they knew of
any wheel refurb people. They gave me this phone no: 07757 973792 (Alloy Smart)
They're based in Bridgend, but they come to your house and pick your wheels up, refurb them and
drop them back to yours for £35 a wheel. I don't know if they repair/weld alloy wheels but I would
imagine they do (for an extra cost of course).
Wynnes Motors use this company for their clients and reckon their amazing, with a quick turnaround
of two or three days.