Commercial Buildings Engineering

An Introduction

ONEC provides building systems engineering services through ONEC Engineering.

Our team offers engineering, design, and consultation in the following disciplines:

  • Structural
  • Mechanical
  • Electrical

By combining all 3 disciplines we have a design that is seamless, all plans are co-ordinated together and projects complete without a hitch

We focus on building performance and managing the maintenance, energy use, and integration of systems within architectural design.

What We DO

  • Facility Assessments
  • Feasibility Studies
  • Construction plans and specifications
  • Commissioning
  • HVAC
  • Plumbing and Drainage
  • Building Automation
  • Power Distribution
  • Lighting
  • Security and PA Systems
  • Energy Audits, Management, and Modelling


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3900 Geary Blvd

San Francisco, CA 94118, USA