Johnston Engineering Company is a professional consulting engineering firm specializing in mechanical design, plumbing design, construction administration, energy audits and forensic engineering services. We have an extensive and wide range of mechanical engineering experience which includes all mechanical and plumbing engineering along with any associated structural and electrical engineering.
Retrofit
Whether your project is new construction or a retrofit, we offer in house mechanical and plumbing engineering services and have the ability to coordinate with Structural and Electrical Engineering to deliver construction documents on time.
Engineering Consulting
We offer construction administration for all of our projects. From submittals and shop drawing reviews, to site visits during construction - we ensure that our designs are implemented correctly, and that the systems function as designed. We work closely with several General Contractors and Mechanical and Plumbing Contractors and can work together to deliver a design that is effective and economical.
Forensics
Our firm has been involved in winning multiple lawsuits for our clients as forensic engineers. Tom Johnston, our firms Principal Engineer and Owner, has provided expert testimony in several court cases where his testimony was crucial to our client’s success.
Construction Administration
We offer construction administration for all of our projects. From submittals and shop drawing reviews, to site visits during construction - we ensure that our designs are implemented correctly, and that the systems function as designed. We work closely with several General Contractors and Mechanical and Plumbing Contractors and can work together to deliver a design that is effective and economical.
Recent Projects
We've compiled a list of recent projects completed by our firm over the past three years and what region of the State of Arizona these projects were completed in.
