We offer commissioning of mechanical, plumbing and electrical systems tailored to your specific needs and goals.

Construction Commissioning

Considered the more traditional commissioning approach, Construction Commissioning takes place during the construction and acceptance phases of the project and can be readily tailored to LEED-NC EA Prerequisite 1: Fundamental Commissioning of Building Energy Systems

Some of the key elements of Construction Commissioning include:

  • Thorough review of design and construction documents and owner’s project requirements
  • Fully establish the commissioning scope and contractor involvement via a formal Commissioning Plan
  • Develop equipment installation verification methods
  • Develop functional performance testing of systems and their interactions
  • Coordinate and oversee the execution of installation verifications, equipment startups, and functional performance testing
  • Establish and implement training and O&M requirements
  • Provide consolidated Commissioning Report

Comprehensive Commissioning

Considered the more complete commissioning approach, Comprehensive Commissioning is an extension of Construction Commissioning and involves participation of the Commissioning Authority at the concept stage of the project. The commissioning includes review of design documents for compliance with owner’s project requirements and the salient features required for proper operation and maintenance of the systems and execution of functional testing.

The added benefits of Comprehensive Commissioning include reduction in change orders and improved design with respect to control sequences and equipment access. With the addition of a post acceptance review, Comprehensive Commissioning can be readily tailored to the LEED-NC EA Credit 3: Enhanced Commissioning.


Existing buildings are often in a marginal state of operation resulting from changes in user requirements, poorly operating and inefficient equipment, poorly functioning control systems, incomplete or ineffective original design and construction, and poorly trained or ill equipped maintenance staff; all of which burden the Owner with excessive and unnecessary costs.

Retro-commissioning offers the Owner an approach to systematically identify and resolve existing adverse conditions. Simes & Rosch Engineering will partner with a qualified Test and Balance agency to offer just such an approach, and has the design knowledge to make recommendations for system improvements once the system has been restored to original design parameters.