Inexpensive prefabricated quartz in Boston area

[Maria Lovely]

I am renovating apartments for mid to high end rental. The kitchen area is a blank slate and needs to be built completely. I heard about using prefabricated quartz as there are inexpensive (about half the price of slab) but cannot find any stores around Boston area that sell them.  Any suggestions for stores in Boston area that sell prefabricated quartz?  Also, anyone with experience and feedback after using such prefabricated quartz.