Energy Upgrades in the built environment

The services we provide are based on a high level of validated technical expertise across all aspects of energy upgrades in the built environment. Within our team we have 400+ combined years of MEPR and BMS experience and we have delivered in excess of 20 LEED Gold/Platinum CxA projects. e2s is a NEBB nationally certified company, with certified engineers and technicians on our staff and in the field.

Scroll down for details of our areas of service.


End of life turn-key project designed, managed and implemented for HVAC / Refrigeration / Control / Lighting equipment renewal / replacement

  • Replace HVAC RTU, AHU, Make Up Air (MUA), and Dedicated Outside Air Systems (DOAS)
  • Replace refrigeration compressor rack systems
  • Refrigerant upgrades to lower global warming potential (GWP)
  • Replace refrigeration air and water cooled condenser systems
  • LED lighting upgrades with daylight harvesting, dimming zones and controls
  • Building Management System (BMS) control upgrades and expansion

Energy Efficiency turn-key project designed, managed and implemented upgrades

  • Upgrade Controls for Refrigeration, HVAC & Lighting systems
  • Install high efficiency ECM motors in refrigerated walk-ins, cases, HVAC evaporator fans, and condenser fans
  • Install variable frequency drives (VFD’s)
  • Add doors to open refrigerated cases
  • LED lighting conversions and retrofits to front of house, back of house, and fixtures
energy upgrades
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Critical Infrastructure Renewal

High quality. On time. On budget.

We are trusted to implement the upgrading or replacement of critical infrastructure assets using a data-driven approach that matches systems selection accurately to operational need.

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Turn-Key Energy Upgrades

Yielding more for less

We specialize in energy upgrades and improving the energy efficiency of buildings to achieve maximum productivity and cost-effectiveness.

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Covid-19 HVAC Shield

Protecting your occupants

We minimize the threat posed to building occupants by airborne
infectious diseases like Covid-19 by ensuring proper ventilation and filtration are in place, thus reducing the risk of transmission through recirculated air

Contact us to find out more about our implementation services.

& Balancing


  • New Construction MEP/R/BMS Systems Commissioning
  • Renovation MEP/R/BMS Systems Commissioning
  • LEED Commissioning for new construction, tenant fit out, and renovations
  • Green Globes Commissioning for new construction, tenant fit out, and renovations
  • Retro-Commissioning and Recommissioning of existing buildings


  • HVAC air Testing and Balancing
  • Hydronic water Testing and Balancing
  • Outside air Testing and Balancing
  • Kitchen hood exhaust and Make Up Air systems testing and balancing
  • Building pressure measurement and verification
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Efficient. Responsive. Expert

Our e-commissioning service provides off-site, closed-loop equipment test procedures that are fully implementable at a distance with remote system connectivity.

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Dynamic Systems Testing

We are trusted to provide nationally certified, independent commissioning and functional testing services that ensure quality construction completion and maximum building performance.

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Air and Water Balancing

Accurate system set-up

We provide a coordinated, specialist in-house team with keen, real-world understanding of how large-scale commercial and industrial HVAC systems perform.

Contact us to discuss how our analysis and diagnostic expertise can add value to your business.

MEP/R & Energy Advisory

Existing building MEP/R/BMS due diligence for risk assessment and capital planning:

  • Building acquisitions
  • Lease acquisitions
  • Take overs
  • Planned renovations

Program Development for:

  • HVAC, refrigeration, lighting and control equipment standards
  • National equipment renewal processes
  • Master budget planning for capital and expense
  • Best practices for MEP/R/EMS planned maintenance programs
  • Covid Mechanical System Consulting and Ventilation Rate Confirmation
  • Resiliency planning and on-site power consulting and design review/coordination

Difficult building performance and problem resolution

  • Negative pressure building diagnosis and solutions
  • Humidity infiltration diagnosis and solutions
  • Poor kitchen hood exhaust draw diagnosis and solutions
  • Substandard interior space temperature control diagnosis and solutions
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Building Lifecycle Solutions

Efficient from day one

Holistic approach to MEP/R systems, from initial site evaluations through commissioning, operations and maintenance, to upgrades and renewals.

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Virtual Professional Network

Your expertise resource

Access our national network of in-house talent as an extension of your team, providing expert evaluation and problem solving services, tailored to your needs.

Contact us to discuss how our design expertise can benefit your building systems.


 e2s is here to help. Please send us a contact request to learn more.