About Company

Johnston Engineering Company is a mechanical and plumbing consulting engineering firm that specializes in mechanical design, plumbing design, construction administration, energy audits, and forensic engineering services. Johnston Engineering Company delivers retrofit and new-construction solutions for schools, public buildings, industrial facilities, and commercial clients by providing thorough site and system evaluations, energy-efficient and code-compliant designs, and hands-on construction administration and project management from its Scottsdale, AZ office.

Service Category

Area Served

Project Photos 

Reviews