Any recommendations for someone you trust to do tip replacements around the Boston or Boston Metro West area? What does it cost for a tip replacement if I provide the tip?
Depends on the repairman. Some will charge you the same amount even if you provide the tip. Some will charge you a nominal fee $10-$15 if you supply the tip. Some will not use your tip because they don't warranty a tip they didn't purchase.
Best bet, learn to replace and maintain your own tips.