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Retro-Commissioning

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Retro-commissioning is a structured process for existing buildings that verifies building systems and equipment are operating as intended and aligned with current performance needs. For new buildings or new systems and equipment that require Commissioning services, click here.

By identifying inefficiencies and optimizing system operations, retro-commissioning improves energy efficiency, enhances occupant comfort, and extends equipment lifespan without requiring major capital upgrades.

Through functional performance testing and system reviews, our team evaluates HVAC systems, domestic hot water systems, building management systems (BMS), lighting systems, and other critical infrastructure. This process reduces energy waste, prevents operational issues, and ensures systems are properly operated and maintained over time.

Retro-commissioning also plays a critical role in regulatory compliance. For buildings subject to NYC’s Local Law 87 (LL87), it is a required component of the ten-year compliance cycle and must be completed alongside an ASHRAE Level II energy audit for buildings over 50,000 square feet. At EN-POWER GROUP, our certified commissioning professionals help building owners meet these requirements while improving overall system performance and alignment with energy standards.

Our Retro-Commissioning Services Include:

  • Existing building system performance evaluations
  • Energy efficiency and cost-saving retro-commissioning measures
  • Building automation system (BAS) optimization
  • Fault detection and issue resolution
  • Operational and maintenance strategy enhancements

Meet our experts

FEATURED PROJECTS

  • Energy Management & Controls
  • Energy Modeling
  • Engineering Design and Implementation
  • Mechanical System
  • Rebates And Financing

The Victoria’s Practical Path to $0 Project LL97 Penalties

  • Energy Management & Controls
  • Feasibility Study
  • Lighting Upgrades
  • Rebates And Financing
  • Submetering

Reducing Utility Costs and Compliance Risk Without Costly Infrastructure Overhauls

  • Energy Auditing
  • Energy Benchmarking
  • Energy Procurement

Energy Procurement and Engineering Study Reduce Costs for Plastics Manufacturer

  • On Site Generation and Renewable Energy
  • Resiliency

Solar PV System Brings Much More Than Renewable Energy

  • Educational
  • Energy Consulting
  • Management And Financing

Rebates Bring Expensive Efficiency Improvement Projects to Reality

  • Engineering Design and Implementation

One HVAC Upgrade, Multiple Problems Solved

Custom Solutions For Your Building's Complex Energy Needs

To support New York City’s ambitious goal of achieving carbon neutrality by 2025, Municipal Courts have enacted local laws that impose significant financial.

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