Duct Work

Our Team

Our team includes LEED® and Certified Building Commissioning (CBCP & CxA) accredited professionals. We have engineers licensed in 48 states.

Meet the professional engineers, designers, drafters and staff who can turn your vision into a reality.


Dwayne Vaughn

Dwayne Vaughn, P.E.

Principal / Mechanical Engineer
Phil Voegeli

Phil Voegeli, P.E.

Principal / Electrical Engineer
David Ahlstedt

David Ahlstedt, P.E.

Mechanical Engineer
Morgan Heldstab

Morgan Heldstab, P.E.

Electrical Engineer
Joey Hrenchir

Joey Hrenchir, P.E.

Mechanical Engineer

Sean Miller, P.E.

Mechanical/Energy Engineer
Drew Rose

Drew Rose, P.E.

Electrical Engineer
Gary Stefan

Gary Stefan, C.E.T.

Certified Engineering Technician

Sydney Bellows, E.I.T.

Mechanical Engineer In Training

Jason Lemasters, E.I.T.

Electrical Engineer In Training

Austin Nefzger, E.I.T.

Electrical Engineer In Training

Brian Pracht, E.I.T.

Mechanical Engineer In Training

Manny Villarreal, E.I.T.

Electrical Engineer In Training

Josh Moyer

Mechanical Designer
Austin Shafer

Austin Shafer

Mechanical Designer

Jordan Shafer

Mechanical Designer

Brad Smith

Mechanical Designer
Cory Krier

Corey Krier

Electrical Drafter
Natalie Stearns

Natalie Stearns

Mechanical Drafter
Heather Rael

Heather Rael

Office Manager