Commercial Contractors

Specializing in Complex Retail Projects

As a firm, we are rooted in our ability to deliver timely and budget-conscious projects, so we understand the unique priorities of our retail clients. We work around your site restrictions, store hours, and peak seasons to minimize the impact to your business. Our self-performing capabilities afford our clients the flexible, efficient, and customer-sensitive construction to ensure minimal interruption to your operations. As we take your design and vision for your property, we will manage your renovations, additions, or new builds so we can meet your company and address any complexities that come with your project.

Our Projects


Cornerstone Bank

  • Bismarck, ND
  • 22,000 SF

About This Project

The consolidation of the Cornerstone Bank offices and banking services into one location. Our scope of work includes masonry elevator shaft, stair tower, and exterior stone finishes. We also acted as the carpentry subcontractor on this project.

Abbott Paint & Carpet

  • White Bear Lake, MN
  • 3,000 SF

About This Project

The entry addition to the existing structure transformed the entryway to a larger, warmer, and more inviting entry space with an aesthetic that blends well with the historic charm of downtown White Bear Lake.


  • Multiple locations around Minnesota, North Dakota, South Dakota, and Wisconsin
  • Various

About This Project

Renovations to and additions at existing Menard’s locations.

Building strong foundations and complex projects

Maertens-Brenny Construction is a general contractor that self-performs concrete, masonry, and carpentry. We specialize in industrial, manufacturing, and commercial projects. Contact us to discuss your project.