Concrete removal in flagstaff, hamilton

Hi, I need concrete removal services in Flagstaff, Hamilton Removal Date: Before Fri, 18th Oct Other Details: After removing a large garden, I have about 15 cut off posts with concrete foundations. They are all removed from the ground, and just require taking away for disposal. I am able to take it to the transfer station myself, however the cost is high. Hoping someone out there has somewhere that it can be disposed of for cheaper. Thanks