Don Penn founded DPCE in 1991. Don is a licensed mechanical and electrical engineer, and certified GeoExchange designer with licenses in 49 states.

Customer service is key in any company wishing to grow their client base. That's why every one of our designers is versed in each and every discipline. For our clients, this means fewer coordination issues during the design process, efficient turnaround and consistently high quality work.


To be regarded as the most sought-after engineering firm, providing innovative solutions, unparalleled customer service and authority in sustainable designs.

mission statement

vision Statement

Develop long term client relationships by maintaining high moral and ethical standards, exceeding expectations, and delivering exceptional quality and customers service, regardless of the size or scope of the project.