Posted by Stefan on October 07, 2003 at 18:30:30:
In Reply to: Repairman local to Washington, DC? posted by Sean Chisham on October 06, 2003 at 21:01:56:
Joel Bristor and Bob Pallance have both done excellent work for me.  Joel installed a Thayer Valve onto my wife's trombone and did a very good job.  He was also very friendly.  
Stefan