Concrete Coring Company Of Hawaii 54 Kekela Street Hilo, HI 96720, United States 808-896-7963 [email protected] http://www.penhall.com With the advantage of decades of experience and a wide stock of industry-leading equipment,Penhall Company®/Concrete Coring of Hawaii is Oahu's leader in concrete demolition and disposal. As part of the largest concrete services provider in North America, you can rely on their expertise and professionalism for anything you need.Penhall Company®provides an extensive list... read full review »