Field experience
The work behind the advice
Photos from 406 Underground job sites and equipment, and what our crews have done — the experience every consult draws on.
Project gallery
From our job sites
Company photos from the Four O Six Underground archive. Tap a photo to enlarge.
What we've done
Ground, crossings & customers
- Drilled and located through dirt, cobble and rock — under highways, creeks and rivers, and in tight, confined spaces.
- Boring services for NorthWestern Energy (listed as a boring-services vendor in NorthWestern Energy's 2018 annual report to the Montana PSC).
- Water, sewer, power, gas, telecom, fiber, coax and copper installs by bore, plow and trench.
- Hydro excavation at the Montana State Capitol in Helena.
- Traffic control from one-lane flagging to highway closures.
- Work in Montana, Wyoming, Idaho, North and South Dakota, Colorado and New Mexico.
What clients say
In their words
Four O Six Underground Inc., is my primary boring company when directional boring is required. They have addressed my needs time and again by completing the projects as requested. The word no is not on their vocabulary and they strive to accommodate the customer 100 percent.
The crews not only provide accurate bores, but also take responsibility for their actions and clean up after themselves without being asked when leaving a jobsite. Four O Six is also proactive in locating utility crossings… Montana owned and operated, this company has a family touch to it and it shows in their desire to do a good job at a minimal cost.
★★★★★I was without potable water until Four O Six Underground quickly, professionally drilled horizontally under the road to connect new wires from the well to my home! Excellent customer service and quality work! Thanks!
★★★★★Best directional drilling company in Montana! 5 star service!
Got a bore to plan, a bid to check or a job fighting back?
Call Beau directly — anywhere in the world — or send the details.