Chevron HPC II

We installed new, energy-efficient HVAC systems throughout a high-rise building, helping to earn LEED silver certification.

Two field men reviewing blue prints assessing HVAC

Value Delivered

We completed this large, complex HVAC system removal and replacement project without disrupting the facility’s daily operations. The retrofit took place within a 50-story building, but no outside lifts were permitted. To overcome this challenge, we applied expert vertical logistics planning to remove old equipment and bring in new using the existing building elevators.

Throughout the process, we collaborated with the general contractor to transport equipment in adherence to strict safety guidelines within the partially-occupied facility. We also worked closely with the manufacturer to ensure more than 100 new custom air handling units would fit properly into the allowable space.

Our work helped achieve a comfortable, energy-efficient environment in compliance with corporate energy guidelines. The project earned LEED Silver certification.

Client Objectives

While consolidating its Houston operations, Chevron needed new energy-efficient HVAC systems that would meet corporate guidelines and provide employees with a modern office environment.


This project involved over 1.2-million square feet of office space, including a 20,000-square-foot kitchen and dining facility. At the time, it was the client’s largest office retrofit worldwide. Our solutions included:

  • Demolition and removal of the original multizone HVAC systems including air handling units and ductwork on all floors
  • Installation of a new HVAC system
  • Logistics planning to use existing building elevators instead of outside lifts
  • Coordination with the general contractor to transport equipment safely and non-disruptively
  • Coordination with the manufacturer to ensure proper fit of 104 new custom air handling units
  • 600 fan-powered terminal boxes
  • 1,100 variable air volume terminal boxes
  • 55,000 feet of hot water piping
  • 700,000 pounds of ductwork
  • A new state-of-the-art control system

Client Background

Chevron is a leading global provider of energy, with major operations in the world’s highest-producing oil and gas regions.