About
Keystone Contracting is your trusted partner for professional excavation and site work in the Bozeman, Big Sky, and surrounding areas. We provide essential groundwork for both residential and commercial projects, from custom home foundations and septic system installations to material hauling and road grading. Our services are designed to ensure your project starts on a solid foundation. We are committed to reliability, professionalism, and quality craftsmanship, serving our community within a 90-mile radius of Bozeman.
Contact us
Hours
| Monday | 7 AM–5 PM |
| Tuesday | 7 AM–5 PM |
| Wednesday | 7 AM–5 PM |
| Thursday | 7 AM–5 PM |
| Friday | 7 AM–5 PM |
| Saturday | Closed |
| Sunday | Closed |
Posts
Reviews
5 out of 5
(8 reviews)
5
5
4
3
2
1
Ryan Husted
6 months ago
My wife and I recently had our driveway completely excavated to expand and install all new asphalt and culvert section. I was referred to Dev Thomas owner of Keystone Contracting out of Belgrade, MT from another excavating company that does not take on smaller driveway projects like ours we were looking to have done. They had referred a total of three companies to give me a few options. After our first meeting with Dev Thomas and his Team, I knew they were going to be the right choice. They were always on time, made sure to update us on completion of project, and finished on the time frame they said they would. I have attached some images to show the completed work. We were really happy to see how it turned out and to work with Dev Thomas and his Team. We would HIGHLY recommend them to family and friends, and to anyone in Gallatin Valley looking to work with a great company. Thanks again, you guys ROCK!
Sheridan London
5 months ago
I’m writing this for my parents but, Keystone recently demo’ed and poured a new asphalt driveway for them. They did an amazing job with the clean up, removal, and installment. My parents are overjoyed by the quality of work Keystone accomplished alongside their speed of completion.
About
Keystone Contracting is your trusted partner for professional excavation and site work in the Bozeman, Big Sky, and surrounding areas. We provide essential groundwork for both residential and commercial projects, from custom home foundations and septic system installations to material hauling and road grading. Our services are designed to ensure your project starts on a solid foundation. We are committed to reliability, professionalism, and quality craftsmanship, serving our community within a 90-mile radius of Bozeman.
Hours
| Monday | 7 AM–5 PM |
| Tuesday | 7 AM–5 PM |
| Wednesday | 7 AM–5 PM |
| Thursday | 7 AM–5 PM |
| Friday | 7 AM–5 PM |
| Saturday | Closed |
| Sunday | Closed |
Contact us
Posts
Reviews
5 out of 5
(8 reviews)
5
5
4
3
2
1
Ryan Husted
6 months ago
My wife and I recently had our driveway completely excavated to expand and install all new asphalt and culvert section. I was referred to Dev Thomas owner of Keystone Contracting out of Belgrade, MT from another excavating company that does not take on smaller driveway projects like ours we were looking to have done. They had referred a total of three companies to give me a few options. After our first meeting with Dev Thomas and his Team, I knew they were going to be the right choice. They were always on time, made sure to update us on completion of project, and finished on the time frame they said they would. I have attached some images to show the completed work. We were really happy to see how it turned out and to work with Dev Thomas and his Team. We would HIGHLY recommend them to family and friends, and to anyone in Gallatin Valley looking to work with a great company. Thanks again, you guys ROCK!
Sheridan London
5 months ago
I’m writing this for my parents but, Keystone recently demo’ed and poured a new asphalt driveway for them. They did an amazing job with the clean up, removal, and installment. My parents are overjoyed by the quality of work Keystone accomplished alongside their speed of completion.
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