I recently had a repair on my old faithful Bach 50BL Bass Trombone. A friend recommended Andrew Clennell at Clennell Custom Brass. Andrew did a superb job, quick service and a very good price. I would highly recommend anyone who needs a repair or any other work they may need on their instrument, to contact Andrew. Based in Northfield, Birmingham, Andrew's number is 07971 489279. Mark Howarth.