Building Energy Solutions

Building EnergyManagement System

Ahern employs over 110 NICET-Certified professionals, 13 licensed PEs, 3 LEED APs, and 4 EITs. Our building energy solutions team will help you better manage your utility spending by identifying and recommending energy-saving alternatives.

Design, Installation &Service

From initial audit to commissioning and ongoing service, we provide turnkey solutions to improve your bottom line. This includes working to find incentive funds to help offset costs.

With Ahern on your side, environmentally friendly construction projects are simplified. Our team of experts will work closely with you to identify systems that meet both your sustainability desires and your budget.

We’ve also gone through the certification process with two of our own buildings – our Fond du Lac headquarters is LEED Gold Certified, as well as our Milwaukee office. We employ 3 LEED accredited professionals, who will work closely with you to provide LEED plumbing and HVAC designs. We'll also coordinate with appropriate agencies to achieve incentives and finalize certification.


As of 2023, 41% of Ahern's project managers have been with the Company for 10+ years.

Ahern has been a very reputable firm in the area. I think the most important thing is their people. They are flexible, willing to work with you, and give suggestions, which I think is very important.
Baker Cheese


An Ahern employee monitoring a building

Service Offerings

  • Identification: Distinguish potential efficiencies through site/process walkthroughs and equipment/system evaluations.
  • Audit: Analyze baseline utility consumption and costs; establish payback criteria; calculate utility savings through recommended efficiencies or equipment improvements; detail project timelines.
  • Installation & Commissioning: Complete installations and commission systems to operate at optimal efficiency; provide measurement and verification of savings.
  • Energy Monitoring/Service: Monitor utility costs through periodic performance checks; conduct staff energy awareness and operation training.
  • Utility Management: Understand current utility consumption and triggers, build time-lapsed consumption model, identify consumption saving improvements, and track ROI.

In 2023, 99% of client survey responders reported we met or exceeded expectations.

Ahern’s hard working and knowledgeable team was able to develop, among other contributions, cost-saving ideas that were extremely helpful.
Jim Lau HVAC Designer Thelen Engineering