John Borthwick- Professional Engineer

Borthwick Engineering & Construction, LLC is a licensed Colorado Professional Engineer specializing in residential structural design from the office in Dillon. Detached garages, deck expansions/replacements, home additions, foundations, retaining walls, pavilions, and ADUs are just a few examples of the kind of projects.

Borthwick Engineering & Construction, LLC

(913) 908-6017 mobile

Email: john@borthwickengineering.com

Rocky Mntn Ofc                      

PO Box 1593                             

Dillon, CO 80435