Updated: Apr 10, 2026
Location and Projects
Address
9942 US 10, Elk River, MN, 55330
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Massmann Geothermal and Mechanical LLC
Massmann Geothermal and Mechanical LLC, 9942 Us, Elk River, MN (Owned by: Jason Massmann) holds a Mechanical Contractor Bond license and 3 other licenses according to the Minnesota license board.
Their BuildZoom score of 105 ranks in the top 8% of 77,973 Minnesota licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Massmann Geothermal and Mechanical LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Massmann Geothermal and Mechanical LLC Services
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Massmann Geothermal and Mechanical LLC Contact Information
Phone Number: (651) 888-9817
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Address: 9942 US 10, Elk River, MN 55330
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Massmann Geothermal and Mechanical LLC Elk River
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Massmann Geothermal and Mechanical LLC has a BuildZoom score of 105, which places them above 92% of 77,973 contractors in Minnesota.
Activity
|
5 projects
|
2025 |
|
4 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Massmann Geothermal and Mechanical LLC has worked on at least
15.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
12 projects
|
Mechanical projects |
|
8 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Massmann Geothermal and Mechanical LLC mostly works on
mechanical project
and hvac project
projects.
Pricing
|
3 projects
|
< $5k |
|
4 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
The typical size of their permits is approximately $35,845. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Massmann Geothermal and Mechanical LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Relocated 120v receptacle for whirlpool bathroom including gfci. replacement of exhaust fan and vanity lights. mechanical permit has been issued cr25-0459p
Valuation:
$400
Permit #:
CR25-0519E
Status:
issued
Fee:
N/A
Permit Type:
Electrical remode...
Building Type:
N/A
Geothermal system install
Valuation:
$159,950
Permit #:
ED217467
Status:
final
Fee:
$2,635
Permit Type:
Residential
Building Type:
N/A
Existing home. geothermal retrofit. replace conventional system w geothermal system
Valuation:
$37,643
Permit #:
ED213059
Status:
issued
Fee:
$874
Permit Type:
Residential
Building Type:
N/A
Hvac remodel
Valuation:
$119,496
Permit #:
MI273179
Status:
final
Fee:
$2,863
Permit Type:
Single family
Building Type:
N/A
Geothermal retrofit see comments for scope of work
Valuation:
$57,501
Permit #:
SL343381
Status:
issued
Fee:
$86
Permit Type:
Replacement
Building Type:
N/A
Replace furnace and air conditioning
Valuation:
$35,845
Permit #:
SL335368
Status:
final
Fee:
$86
Permit Type:
Furnace and air c...
Building Type:
N/A
Furnace/air conditioner
Valuation:
$32,012
Permit #:
RI154177
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Furnace/air conditioner
Valuation:
$32,012
Permit #:
RI154176
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Ground source heat pump geothermal retrofit
Valuation:
N/A
Permit #:
M23-0258
Status:
final
Fee:
$65
Permit Type:
Alteration
Building Type:
N/A
Replace existing geothermal heat pump move and addition ductwork as needed for the remodel run new gas line to range run new gas line from the meter to the mechanical room. venting of bathroom fans
Valuation:
N/A
Permit #:
M18-0487
Status:
final
Fee:
$541
Permit Type:
Alteration
Building Type:
N/A
Installing a geothermal heating and cooling system ductwork modifications main and lower levels for zoning redoing kitchen and dryer venting. gas lines - cook top and boiler
Valuation:
$32,108
Permit #:
P201903791
Status:
final
Fee:
$498
Permit Type:
HVAC alteration
Building Type:
N/A
Install geothermal retrofit heating system gas piping-1 heating system-1
Valuation:
N/A
Permit #:
NH071452
Status:
final
Fee:
$749
Permit Type:
HVAC
Building Type:
N/A
Geothermal retrofit. heat pump flow center boiler pre-heat tank loop field
Valuation:
N/A
Permit #:
MG383652
Status:
final
Fee:
$76
Permit Type:
Remodel - residen...
Building Type:
N/A
Plans attached -- drywall supply -- 9700 13 th ave n -- 2 nd level office ductwork replace furnace and a c adding new erv
Valuation:
N/A
Permit #:
P201805168
Status:
issued
Fee:
$605
Permit Type:
N/A
Building Type:
N/A
Hvac system - new construction - geothermal
Valuation:
N/A
Permit #:
M19-0698
Status:
final
Fee:
$1,893
Permit Type:
New construction
Building Type:
N/A
New geothermal hvac forced air and in-floor heating system
Valuation:
$66,500
Permit #:
ED167311
Status:
final
Fee:
$1,351
Permit Type:
Residential
Building Type:
N/A
Bathroom - new
Valuation:
$600
Permit #:
20 25 041041 S&C 00 E
Status:
issued
Fee:
N/A
Permit Type:
Service & circuits
Building Type:
N/A
Geothermal changeout
Valuation:
N/A
Permit #:
B24-04850
Status:
final
Fee:
$156
Permit Type:
Mechanical
Building Type:
N/A
New hvac - geothermal
Valuation:
$41,364
Permit #:
ED178305
Status:
final
Fee:
$938
Permit Type:
Residential
Building Type:
N/A
Remodel duct-work modification & in-floor tubing
Valuation:
$17,866
Permit #:
ED166685
Status:
final
Fee:
$447
Permit Type:
Residential
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Massmann Geothermal and Mechanical LLC License info
Verified License
| License # | MB785369 |
| Status | Active |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
| Business Type | Not Available |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Massmann Geothermal and Mechanical LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | BV001595 |
| Status | Active |
| City | Burnsville |
| Type | Contractor, Heating And Ventilation |
| Business Type | Not Available |
- When BuildZoom last verified this license, it had an expiration date of December, 2012. Check the current license status of Massmann Geothermal and Mechanical LLC with the The City of Burnsville, MN
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MB003981 |
| Status | Inactive |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
| Business Type | Not Available |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Massmann Geothermal and Mechanical LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MB003981 |
| Status | Inactive |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
| Business Type | Not Available |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Massmann Geothermal and Mechanical LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
74
Permits
- Building permit records show that Massmann Geothermal and Mechanical LLC has worked on 74 permitted projects.
Massmann Geothermal and Mechanical LLC Employees
.
.
JM
Jason Massmann
Owner