Welcome to Hanke Constructors

A Service Disabled Veteran Owned Small Business (SDVOSB)

HANKE CONSTRUCTORS is the small general contractor that outperforms the large guys!


We do this by:
  • Training: Our Project Managers and Engineers train every two weeks, sharing their ideas and experiences.
  • Ownership: Our PMs “own” the job from start to finish. They prepare the estimates, contact the subs, and know the job inside out before it is bid, then see that same job through to completion.
  • Partnering: Hanke Constructors teams with the best of the large and small contractors, developing synergy and leveraging off of their strengths.


We provide “best value” design-build and competitive bid construction services to government agencies.


We will work with our government client to:
  • Identify the least costly construction solutions
  • Identify the best construction approach for building components that meet or exceed the clients’ needs
  • Overcome paradigms
  • Optimize schedules
  • Identify innovative solutions
  • Ensure the highest quality


Colonel Brett L. Hanke, P.E. (Ret.)
Phone: 636-887-4868 (office)
Fax: 636-887-4875
Brett’s E-mail: brett.hanke@hankeconstructors.com
100 Midland park Drive
O’Fallon, MO 63366
Office Email: businessoffice@hankeconstructors.com

Hours – 8:00 – 4:30

Submit all inquiries for bidding and/or estimating to Hanke.est@hankeconstructors.com