There are trucks in Greece, just not that many twin cabs, mostly you will see them outside the city in the country.
Construction workers use mostly vans, and flatbed versions of vans (Like the ford transit) also called cab-over pick-up trucks. There are lots of small light cab-over trucks in the islands by Piaggio and Daihatsu https://en.wikipedia.org/wiki/Truck#/media/File:PiaggioTruck... which are pretty hand and often provide a pretty big flatbed for stuff. There are some construction workers like electricians, plumbers etc that love to use panel vans or their passenger versions using folded seats like the Fiat Doblo (Similar to the Ram Promaster City).
We are actually thinking of buying a mild-hybrid version of the passenger version of a panel-van to cover our family needs.