About Us

We Take your project



As leaders in commercial construction, Greiner prides itself on ensuring each project we are involved with is a true partnership. Digging into the details to truly understand our clients requirements and goals by providing reliable Pre-Construction Services, having a professional, experienced and dedicated team through construction, and excelling at close-out/turn-over to ensure our clients are excited and knowledgeable about their new space – this is who we are.

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Inside is where you "live" and we help you live your brand. Greiner is strength from the inside-out.


Branding. Details. Excellence.


Interior build-outs is in our DNA and will always be at the heart of what we do as a construction company. “However, it’s the quality of our people, team approach to projects and proven processes of completing thousands of projects whether new construction, renovation or remodel, at a high level that makes us the best in the business”. Hans Siefker, President.

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“I was truly impressed with Greiner’s quality workmanship and the final product.”
—— Clear Channel Media + Entertainment

Services Offered

  • Pre-Construction

  • 24-Hour Maintenance

  • Interior Renovation/Remodel

  • New Construction

Market Sectors We Specialize In

  • Workspace / Office
  • Historic / Repurposing
  • Healthcare
  • Hospitality
  • Multi-Unit Residential
  • Legal
  • Educational / Training
  • Financial
  • Industrial
  • Non-Profit
  • Virtual Tours