The only people you should tip are those who work in an industry that deliberately underpays its employees, AND in which tipping is customary for that very reason. Period.

Think restaurant servers.

" he came highly recommended and has been amazing to work with."

Continue the recommending to others. Word of mouth referalls is a great way to "tip" your builder / crew.

Okay, thanks.
It's a small town, so I don't know how much I can help out in that regard (with the exception of newcomers, like myself), but I will definitely spread that word. My late husband was a businessman and was always tipping everyone...I just wanted to make sure I wasn't committing some faux pas...does anyone do anything for their builder when it's all said and done, other than pay the bill??!

Of course tip him! He did an outstanding job didn't he. Let him know you appreciate it.

I'd suggest cookies and sincere appreciation to the builder and his workers.

You don't tip business owners/proprietors. The best tip you can give them is a strong positive recommendation.

Now if there are specific employees that have gone the mile for you, then I'd consider some gift.