HP’s Toronto Data Centre required the replacement of many of their electrical and mechanical systems but could not afford to halt their operations completely. Govan Brown was tasked with completing the project without causing a delay to HP’s day-to-day operations. Included in the scope of the Hewlett Packard Data Centre were many major mechanical system replacements. All new Computer Room Air Conditioning (CRAC) units had to be replaced as well as other Air Handling Units (AHU). These newly installed features required the appropriate piping and wiring that was related to their functions. Furthermore all new plumbing and waterlines were installed as well as new electrical systems that controlled the majority of the data centre’s equipment. Most challenging however was the process of reinforcing the roof trusses above the equipment without halting their function. It was crucial that we maintained the safety of our workers while also preventing dust from penetrating the systems and ensuring that the equipment had appropriate cooling. Other work was done on the raised floor while we also installed new partitions. The success of this complicated project relied on our ability to schedule and sequence work effectively and our capacity to delegate and communicate diligently with trades and clients resulted in the successful completion of the space.