Building Controls Optimization

A building tune-up to get your systems running at optimal efficiency

Retro-commissioning is a process that seeks to improve how equipment and systems function together in existing buildings. Retro-commissioning can resolve problems that occur during design or construction, or can help address issues that may have developed over the course of a building's lifetime. Ultimately, retro-commissioning enhances overall building performance, producing a facility that meets the individual needs of its owner and occupants, and operates as efficiently as possible.

Control How, When and Where Your Building Uses Energy

Modernize your building HVAC and lighting control systems by installing or upgrading Direct Digital Control (DDC) systems and save on utility and maintenance costs.

Prism provides consulting services for design, tendering and commissioning of DDC retrofits and new installations. We use energy audit reports, design documents and conduct onsite reviews to identify the current buildings' HVAC and lighting system control sequences. With this information we carry out a detailed analysis on how to optimize energy and water use within the project budget.

We are effective at managing the design to tender process, including preparing contracts, reviewing tender submissions and providing recommendations. We have the experience and expertise in project management for the implementation stage. By managing the construction and conducting field reviews we ensure systems are built and operating according to design. Our staff are experts in DDC design and have previous career experiences working as DDC contractors as well as in facility management managing DDC systems.

Case Studies 

Public Works and Government Services Canada

Public Works and Government Services Canada

Retro-commissioning federal buildings for Canada's largest owner of office space to improve system operation and equipment performance
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Articles & Technologies 


"Free cooling" describes savings achieved from a properly working economizer. In mild climates, economizers save energy by using outside air instead of refrigeration equipment to cool the building.satisfaction.