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Leeding Edge Controls & Mechanical Service LEEDing Edge Controls & Mechanical Service Inc. was founded in 2008 by Andrew Lange, Ph.D., D.E., a licensed HVAC Contractor and Design Engineer.

Our mission is to provide unparalled customer service and intelligent solutions for Commercial, Residential, and Industrial HVAC/R Clients.

Many HVAC/R contractors are focused on addressing the "symptoms" of a problem, rather than analyzing the system and identification of the root causes.

Our goal is to work to maintain your HVAC/R systems working at peak efficiency and maximizing the lifespan of the equipment. We approach new system design from a sustainability perspective, such that the energy footprint is minimized, providing not only cost savings to the owner, but minimal environmental impact for the next generation.

We approach all of our clients as full partners in working toward enhanced comfort and efficiency.

Contact us today for a Free Building Assessment to join our Team!
Served areas
  • Southeastern Wisconsin
Highlights and features
  • Refrigeration, Commercial Rooftops, Commercial Freezers and coolers
  • Commercial Boilers, Process Boilers
Associations and certifications
  • Licensed Design Engineer, HVAC, WI. State of WI HVAC Qualifier
Reviews (1)
Write a Review
Dean Konopecki
Apr 12, 2014
LEEDing Edge responded quickly and was on time when my boiler went down in -25F below zero weather. Andrew Lange was extremely knowledgeable, honest and upfront. He went out of his way to thaw frozen piping, check for any leaks, and replace a zone valve that had failed. The cost, even after hours, was VERY reasonable, at least half of what I would have paid to another larger company.

He also gave us a discount on a boiler tune up for the future.

LEEDing Edge Mechanical is a small company, but is dedicated to 100% customer satisfaction and excellent service. I would recommend to anyone.