Tipping tradesmen

[Hfromthenorth]

I have someone doing an installation job in my house and finishing today. He works for a company -not self employed and has an assistant with him. They have done a good job. Should I tip them?

No!

DP is a tradesman. He's never been tipped with cash. Occasionally he brings home a Cadbury bar or something but that's all. Only give something if you want to, you're certainly not obligated to.

I've done that in the past and often found out later that something was not right. I don't do it anymore.