[NohSpinZone]

It’s a service industry and it’s ingrained into our culture to tip for these types of services. What kind of contracting work do you do? I’ve tipped for contractors who did emergency-type repairs for me. For jobs requiring proposals and invoicing, no. I assume that the margins are factored into the overall price.

[Alberta's Child]

It seems odd to tip contractors. I would tip a waitress or the guys who come and deliver furniture to my home, but I don't see why I'd tip the self-employed plumber who comes here himself.

I once offered to tip a mechanic who did an emergency repair for me when I was miles away from home, and he gently refused the tip by telling me that he was the owner of the place. LOL.