O-A-K Colorado

  • General Contractors
202 6th Street
Suite 200
Castle Rock, Colorado 80104
(720) 550-1396
  • About

    Our story began in 1891. Four young engineers in Grand Rapids, Michigan had a vision to build a great city. Their resumés were written in the lines of their hardened, calloused hands. O-A-K offers commercial construction services to clients throughout the country, specifically MI, FL, CO.