We specialize in concrete and take pride in it.

Union Workers

Management backed by union manpower.


We have the professional and proper equipment to get the job done on time.



Curb Masters, Inc. is a Commercial Union Concrete Contractor specializing in exterior concrete projects. Our expertise includes curbs, gutters, sidewalks, driveways, walls, steps, colored/stamped concrete, and numerous other commercial applications. At Curb Masters, Inc. we work with contractors and private parties throughout the Twin Cities and Western Wisconsin. We welcome projects of any size.


CPAM & MNDOT Merit Awards for Outstanding Performance

  • 2015- CSAH 22 (Washington Ave) Reconstruct – Detroit Lakes, MN
  • 2017- Nicollet Mall Redesign – Minneapolis, MN
  • 2019- CSAH 13&22 Roundabout – Cottage Grove, MN


The Curb Masters, Inc. story began in 1989, when Randy Callies started a small concrete contracting company out of his own home. Randy had previously had a successful concrete business with a colleague until both partners decided to run solo. Randy’s son, Mark, joined Randy and they have run the business side by side ever since. Mark’s son, Cody, joined the company in 2017 adding a third generation to the business. The company has steadily grown, developing a reputation for delivering a high level of service to its clients. As the company expanded its work in the Twin Cities market, it was clear that this uncommon level of service would be well received in other areas as well. Curb Masters, Inc. then expanded to serve Western Wisconsin. Today, the Curb Masters, Inc. team consists of over 120 employees serving the Minnesota and Western Wisconsin commercial markets. While Curb Masters, Inc. has seen its fair share of change, one thing will always remain unchanged – our commitment to service.


  • Osha 10
  • Osha 30
  • ACI Concrete Flatwork Finisher & Technician
  • Pervious
  • 1st Aide/CPR
  • ADA