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202 S. 1st Avenue, Suite 205, Yuma, AZ 85364
Sternco Engineering, Inc.’s story began in 1994 when John Sternitzke started the firm in a small office in Yuma, Arizona.

Today, with over 15 employees, the Yuma office offers services across the country including architectural, mechanical engineering, fire protection, electrical and LEED certification services. With 4 PEs, 3 QCxps, and 2 LEED APs on staff, STERNCO is the largest full service engineering provider in the desert Southwest.

Our qualified staff provides the total coordination that every project needs and deserves. Our company of design professionals work as a team to provide an attainable and affordable solution for our clients. Check out where we’ve been, for a slight sampling of all that we are capable of.

We have a great deal of experience in just about every project type imaginable from educational and lab buildings, to industrial, to tenant improvements, and commissioning of both new and existing buildings. Local knowledge is one of the attributes that sets STERNCO Engineers, Inc. apart.

STERNCO has been both the prime professional and a sub-consultant. Our qualified staff is versed in complete project delivery and has the capacity to devote the time, care, and attention required.

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Design & Engineering
  • Architectural Engineering
  • HVAC (Heating, Ventilation, & Air Conditioning) Engineering
  • Plumbing Engineering
  • Fire Protection Sprinkler Systems Engineering
  • Electrical Engineering & Special System
  • Fire Alarm Engineering
  • Process Engineering
  • Digital Control Systems Engineering
  • Sustainable Design & LEED
  • Solar Design
Building COMMISSIONING / Investigations:
  • QCxP Qualified Commissioning Process Provider
  • CxA AABC, AGC Commissioning Authority
  • Forensic Investigations
  • Indoor Air Quality & Test, Adjust, and Balance (TAB)
Project Delivery:
  • Project Management & Contract Administration
  • Design – Build
  • Design – Bid – Build
  • Fast Track