Massmann Geothermal & Mechanical, LLC
US-10, Elk River, MN

Massmann Geothermal & Mechanical, LLC Reviews

4.5 stars based on 34 reviews

Featured Comments:

• M

  Mitch Jorgensen

  1.0

  Had an installation done by Massman that was not properly completed until October 2021. A very expensive installation in Hudson. Jason sells the company and the new owner is not licensed in Wisconsin. No notification from Massman. They failed to complete the installation properly and I got it running on my own. Texted Jason and no reply. Horribly disappointed

• W

  Will U.

  5.0

  We have worked with Massman Geo for many years, since they installed our geothermal heating/AC system at a time when few companies were really involved with geothermal technology. The way I feel now, barring some unforeseeable change in the way they do business, I have no reason to even consider looking elsewhere for alternative heating/air services. We upgraded our system with them recently and—while I rarely write reviews for products/services we’ve received—I thought the workmanship shown in their installation certainly warranted my writing this positive review. Thanks, guys.

• G

  Ginny M

  5.0

  Massmann has serviced my geothermal unit several times over the years but today when I called them (during a heat advisory) when the unit was leaking, they were there within the hour. On top of that, the technician explained the repair in a very comprehensive and understandable way. Highly recommend them!

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