Built On Trust.
Keystone Contracting LLC is a Bozeman-based excavation and utilities company serving the Gallatin Valley. We hold ourselves to the highest standards of conduct and craftsmanship — on every site, every season.
Groundwork Is Our Ground Game.
The success of any construction project — a new custom home, a commercial expansion, new infrastructure — begins with flawless groundwork. That belief is what Keystone Contracting was built on.
Led by Cody Mechling and Dev Thomas, our crew brings specialized equipment and years of Gallatin Valley experience to every job. We know this ground: its soils, its slopes, its winters. That local knowledge shows up in cleaner sites, tighter schedules, and bids without surprises.
From the initial consultation to the final site walk-through, we're committed to a professional, communicative, and respectful partnership. Your vision, our expertise.
Start A Conversation →
Our Values
Precision
Grades, depths, and slopes done to spec the first time. Dirt work is measured in tenths of a foot — so are we.
Partnership
We work as collaborators, not just contractors — communicating clearly with you, your builder, and every trade that follows us.
Accountability
On time, on budget, fully licensed and insured. When we give you a date and a number, we stand on both.
Talk Directly To
The Owners.
No call centers, no middlemen. When you call Keystone, you talk to the people running your job.
