
We design with
people in mind.
Engineering isn’t just about calculations- it’s about creating systems that work seamlessly in the real world. Because we are a company with extensive hands-on experience, we ensure that the solutions we design are not only effective but also maintainable in the long run. We prioritize comfort, efficiency, and functionality, so the spaces we help create truly support the people who use them. Plus, we know that communication matters. That’s why we’re quick to respond, keeping your project moving smoothly from start to finish. When you work with us, you get engineering solutions that are practical, reliable, and built for real life.
Testimonials

Ernest Knapp, Architect
University of California- Santa Barbara, Project Manager
"James, Clara - I've been meaning to thank you for the great submittal and RFI reviews and responses. They are very clear, and timely - that may sound simple, but it does not always happen on every job!"
Bill Thompson, PE
Prime SC Mechanical Contractors, Founder
"Team CJE- I really appreciate the way you bake in with the project teams and let’er rip. All gas no brakes!!!"
We are experts in...
Retrofits & System Upgrades
We assess existing HVAC systems to identify performance improvements, energy savings, and modernization opportunities, ensuring upgrades are both efficient and cost-effective. Every retrofit is a unique puzzle, and we excel at crafting solutions that smoothly integrate with existing conditions.
Central Plants & Thermal Energy Storage
We have extensive experience designing central plants for higher education campuses, creating robust and efficient systems built to last for decades. Our expertise includes water-cooled and air-cooled chiller systems, as well as thermal energy storage solutions. We also design heat recovery plants that reduce emissions without reducing building comfort conditions. With a focus on reliability, scalability, and resilience, we design central plants that support growth while optimizing efficiency.
Energy Efficiency
We implement sustainable and energy-efficient strategies, including decarbonization and sustainable design practices, to reduce energy consumption and operational costs.
Our Services

HVAC System Design
We provide comprehensive HVAC system design services, including detailed construction documents and specifications to ensure seamless implementation. Our designs prioritize code compliance, energy efficiency, and client needs—creating comfortable, functional, and reliable indoor environments.

Feasibility Studies & Life Cycle Cost Analysis
We conduct feasibility and life cycle studies to assess the financial impact of HVAC upgrades and determine if the long-term savings justify the initial investment. Our approach goes beyond theoretical analysis, considering real-world factors like implementation timelines, operational disruptions, and broader impacts on the building.

Professional Peer Review
Construction Support
Peer review is a valuable tool for improving projects, ensuring code compliance, and meeting project goals, but its effectiveness depends on the reviewer’s experience. With decades of expertise, we go beyond basic code checks to assess constructability, maintainability, system integration, and overall project feasibility.
Who we are.
We are a new company with a lot of experience. Established by two creative engineers with a knack for solving problems, we’ve spent years working for larger firms—gaining expertise, tackling complex challenges, and refining our craft. But we wanted something different: a company built on agility and client satisfaction that utilizes our hands-on experience. At CJ Enterprise, we see engineering as more than just numbers—it’s about solving puzzles, finding elegant solutions, and making ideas a reality. With deep industry knowledge and a fresh perspective, we’re here to help you navigate even the most complex engineering challenges.

