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HVAC Designing & Consulting Since 1989

About HVAC Design Solutions Co. (HDS)

HVAC Design Solutions is a HVAC design and energy consulting company locally serving Wisconsin, Michigan's Upper Peninsula, and Illinois for residential and commercial customers. We also perform HVAC, commercial kitchen ventilation, energy and geothermal consulting throughout the United States. Our award winning design team is lead by our owner, Douglas Geyer. His nearly 25 years of HVAC design and consulting experience has made him a trusted team member for hundred of HVAC projects. We have the experience necessary to create the best system for your unique building or home. Our commitment to our customers begins with excellent service, straight talk and competitive pricing. Please send us an email via the CONTACT PAGE or give us a call to begin a friendly discussion about your project.

HDS's Mission

Our mission is simple: maximize your comfort, health, and energy savings.

HDS's Vision

Creating new relationships between owners, contractors, architects, and the HVAC design process.

A Few Sample Testimonials and References of Our Work:

Doug is the go to guy in Wisconsin for geothermal questions, loop design, system design, and consulting - Greg Mitter


Having an independent HVAC designer on our project was a great help. - Jack Baker


HVAC Design Solutions educated our school district completely through the process of a geothermal hvac system and looping, and even gave us a tour of a few job sites - Lisa Stallings


For straight talk and no nonsense solutions for our business, this is the company. We were getting a run around and the process was getting so muddled, until Doug from HVAC Design-Solutions was called in. -Jon Hetzel

Past HVAC Projects
  • Iron Mountain City Hall- Michigan
  • Cellcom- Wisconsin
  • Bar None Entertainment-Wisconsin
  • Latin School- Chicago, Illinois
  • A to Z Hydraulics- Wisconsin
  • Gaea Farm- Wisconsin
  • Iron Mountain City Garage- Michigan
  • Mount Horeb School- Geothermal- Wisconsin
  • Capital Credit Unions-Wisconsin
  • Waupaca Christian Church- Wisconsin

Partners and Associations