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G.O. Loop HVAC/Mechanical Contractor
G.O. Loop LLC was started in 2005 and we have established ourselves as one of the premier geothermal loop contractors in Wisconsin. We specialize in the installation of the underground closed loop piping for geothermal heating/cooling systems and have installed over 2,000 such systems. We will install any loop system from small residential installations up to large scale commercial applications.
We can help people with more than just geothermal. Several years ago we purchased a directional drill to help with our loop field installations and give us more options. We have realized that this machine has a lot of different capabilities and allows the opportunity to run a variety of pipes, conduits, wires, etc underground with little to no excavation needed. Have an irrigation line or something similar that you need run under a road or some other area that cannot be easily excavated? Let us know and we'd be glad to see if we could help. Typically we can even bore right up into a foundation wall or floor if needed.
We work all over the state of Wisconsin and into northern IL.
www.goloopwi.com
From BuildZoom: G.O. Loop, W11366 Blanecae Rd, Randolph, WI (Owned by: Gordty Oosterhouse) holds a Hvac Contractor, Regular, False license and 2 other licenses according to the Wisconsin Rapids license board.
Their BuildZoom score of 96 ranks in the top 20% of 94,017 Wisconsin licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring G.O. Loop, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
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G.O. Loop License info
Verified License
| License # | 1106942 - HVACCONT |
| Status | Active |
| City | Wisconsin Rapids |
| Type | Hvac Contractor, Regular, False |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for G.O. Loop at the City of Wisconsin Rapids.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1106942-HVACCONT |
| Status | Active |
| State | Wisconsin |
| Type | Hvac Contractor |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for G.O. Loop at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | IR753783 |
| Status | Inactive |
| State | Minnesota |
| Type | Contractor Registration |
| Business Type | Limited Liability Company (Llc) |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for G.O. Loop at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.