We don't make facilities, we make facilites work - Virocon

Undertaking construction of a new facility or retrofitting an existing one can be extremely burdensome for owners. The complexity of today’s building systems makes it nearly impossible for contractors and designers to deliver a facility that works. ViroCon engineers are building systems experts that have been making facilities work for Owners since 1978 through a formal commissioning process.

Commissioning is a well-documented, systematic method of assuring that all building systems perform according to design standards and meet the needs/desires of the owner. More simply stated, it is a thorough “debugging” of a facility’s systems from design through occupancy.

Our primary focus is on finding and correcting problems to provide a facility that works properly and meets the needs of the users. We provide professional engineering experts in each building system discipline, with design, construction, and testing experience required to perform testing and troubleshooting tasks. This includes mechanical, electrical, controls, and fire protection engineers.

Many commissioning firms simply observe and document the commissioning effort (“clip-board” commissioning). With this approach, someone is hired to watch and verify the testing while a second agency conducts the actual test. With our approach, our engineers perform the testing (“hands-on” method), allowing our team to get a “feel” for the system. Our method allows the commissioning agent to become the agent for problem resolution, as opposed to just an agent for failed testing identification. We don’t just observe symptoms; we diagnose the problems and provide the solutions that make your facility work.

Our Services are listed below and can be adapted to fit the needs of any individual project and client. For simple projects, the process can be abbreviated, while maintaining the key concepts.

Commissioning Services:

  • Project review
  • Commissioning plan
  • Manufacturer’s startup
  • Installation Verification Certification (IVC)
  • Operational Performance Testing (OPT)
  • Functional Performance Testing (FPT)
  • Integrated Systems Testing (IST)
  • Acceptance testing (electrical)
  • TAB verification (mechanical)
  • Deficiency tracking and retesting
    (Action Items)
  • O&M manual review
  • Training
  • Documentation
  • LEED™ Certification
   We use a “hands on” approach with professional engineers in the field. Our engineers physically perform nearly all testing ourselves allowing our team to get a ‘feel’ for the system. The other firms use a clipboard approach and only witness contractor testing. At best they provide minimal testing themselves; usually it’s just a paper process…

… ask the competition how much testing they physically perform themselves and what type of staff will be performing the tests. You’ll begin to understand why ViroCon is the commissioning firm that makes facilities work.


Pat Prendergast, PE
ViroCon Vice President


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