MN Geothermal LLC
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Claim This BusinessAbout MN Geothermal LLC
MN Geothermal LLC operates as Massmann Geothermal, serving the Twin Cities metropolitan area and surrounding communities including Zimmerman, where the business maintains a physical presence. The company holds an electrical license (EA807472) and offers round-the-clock availability seven days per week for both scheduled service and emergency calls. With a stellar 4.9-star average derived from 62 client reviews, this contractor has established itself as a specialized geothermal systems provider serving residential and commercial clients throughout central Minnesota.
What distinguishes this contractor from competing geothermal operators is the breadth of complementary services bundled under a single roof. Beyond core geothermal installation and repair, the company handles germicidal light installation for indoor air quality improvement, solar design and installation with battery backup integration, electrical panel upgrades, and electric vehicle charger setup. The website features a savings calculator allowing homeowners to project operating cost reductions of up to 80 percent compared to conventional heating and cooling systems, and financing options help manage upfront installation expenses. This multi-trade capability means a single phone call addresses heating, cooling, and electrical needs without coordinating multiple contractors.
Customer feedback highlights specific technicians who delivered exceptional service during challenging situations. One reviewer described a same-day arrival during midwinter when their system failed completely, with a technician named Matt quickly diagnosing the issue and explaining the mechanism causing the failure. Another account praised a technician called Clint for creative problem-solving on a complex geothermal installation. A third reviewer noted their geothermal system had operated for over fifteen years with consistent performance, requiring minimal intervention. The recurring theme across positive reviews emphasizes technical knowledge, transparent communication about pricing before work begins, and respectful interactions with homeowners.
What Customers Say
The overwhelming majority of reviews award five stars, citing fastsame-day response times, upfront pricing transparency, and technicians who clearly explain repair root causes. Single lower ratings reference temporary fixes rather than permanent solutions. Multiple reviewers mention specific staff members by name, with positive experiences tied to technicians identified as Jason, Matt, and Clint.
Working Hours
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| TuesdayToday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
Geothermal Heating & Cooling Installation
Complete ground-loop system design and installation for residential and commercial properties, offering both packaged and split configurations.
Geothermal Repair & Maintenance
Diagnostic services,component replacement, and preventive maintenance contracts for all major geothermal equipment brands.
24/7 Emergency Service
Round-the-clock availability for urgent heating and cooling failures, with same-day response capability documented in reviews.
Solar Design & Installation
Custom photovoltaic system design paired with battery storage integration for renewable energy generation.
Electrical Panel Upgrades & EV Chargers
Panel capacity expansion to support modern loads plus electric vehicle charging station installation for residential and commercial settings.
Backup Generator Systems
Installation of standby generators providing automatic power continuity during utility outages.
Indoor Air Quality Solutions
Germicidal ultraviolet light installation and other IAQ technologies for improved respiratory protection and air purification.