We were building a new detached 1 1/2 storey garage-coach house type building (actually a rebuild of an old barn), approx 900 sq ft, Kosh Custom Building managed the entire project from excavating the new foundation to the finishing details on the interior (a playroom, workout studio, bathroom, office space & storage space). Whenever I raised a question or concern it was dealt with promptly. The entire project was handled to my highest degree of satisfaction. I highly recommend this company. After this project, they work on several other projects for us.