At PuzzeGreen, we deliver Retro-Commissioning (RCx) and Recommissioning (Re-Cx) services designed to enhance the operational performance of existing buildings. Whether it’s a facility that has never been commissioned or one that has drifted from its original performance targets, our approach ensures systems are fine-tuned for optimal efficiency, comfort, and reliability.
Through systematic investigation and data-driven diagnostics, we identify energy waste, operational inefficiencies, and control issues within HVAC, lighting, water, and automation systems. The process involves testing, calibration, and optimization to restore intended functionality — without major capital upgrades.
Our recommissioning programs also align with LEED® O+M, ASHRAE Guideline 0.2, and ISO® 50001, providing measurable performance improvements, documented savings, and enhanced occupant well-being.
At PuzzeGreen, we view retro-commissioning as both a technical and strategic process — one that bridges design intent and day-to-day operation, ensuring every system performs in harmony with sustainability goals and lifecycle cost efficiency.
Key Focus Areas:
Building system diagnostics and operational performance review
Functional testing and control system recalibration
HVAC, lighting, and water system optimization
Energy savings identification and measurement verification
LEED® O+M and ISO® 50001 compliance support
Training, documentation, and post-commissioning monitoring
