GJ Koeppen Construction

General Contractor

6300 Clayton Circle
Frederick, CO 80530

Mon - Fri: 8:00AM - 5:00PM

Sat - Sun: Closed


GJ Koeppen Construction (GJK) was founded in 2005 by Graham and Joel Koeppen; their vision was to break the mold of the stereotypical contractor. They had seen too often the home improvement process mired by unreliable, dishonest and under skilled contractors. GJK's goal is to maintian a high standard of craftsmanship while also providing excellent customer service.

Whether your project is a high-dollar dream remodel, or a budget-minded home upgrade GJK is prepared to walk through every phase of the remodeling process with you. From beginning to end, they are your "one stop remodel shop".


  • English


  • Cash


Graham Koeppen