Your Strategic
Engineering Partners
We Provide A Comprehensive
Approach To High Performance
Building Solutions
Engineering Consulting
Engineering consulting for high-performance buildings.
Architecture Engineering
A comprehensive design approach.
Existing Building Services
Our expert advisors provide “base building” guidance.
Problem Solving For Buildings Across The Country
Our team has a proven track record with clients, building owners and project partners. Learn more about us below.
Our
Expertise
Let our experts help you with all your commercial building needs.
Testimonials
I’ve had the pleasure of working with David Callan on various mechanical retrofit projects for ten-plus years. Callan Consulting Engineers technical talent is fantastic and works well with our property management and engineering teams delivering projects on time and within budget. They always find engineering solutions addressing complex issues, and I would highly recommend them for any mechanical engineering project or consulting work.
William SchuchNational Director of Engineering, JLL 
In addition to their technical skills, the Callan Consulting Engineers team is aware of the budgetary constraints facing every building condition. They skillfully grasp the larger picture at hand, and consider multiple factors when navigating their design solutions. They simultaneously balance budgets and practical design factors that enable them to get to the right answer faster. I’m a strong advocate of their services and highly recommend you call them for your next development or repositioning project.
Don KohlenbergerPresident, Hightower Initiatives 
