If i drop off a car to be painted, do they want a deposit, or do I pay when it's done

Yes you need a deposit in a Money order or credit card.

Maaco pontiac is the best maaco around they are honest and really do a good job. Usually I give 50 % of their estimate.

I just picked my car up last week. They only wanted me to put a deposit on the part to be replaced because I wanted it ordered before I dropped it off.

It's been a few years for me. And different owner.you need to call them.