Castlerock Excavating is a leading excavation general contractor. We are located in Billings, Montana and you'll find many of our successful projects in our Montana and Wyoming service area. We have over 25 years of experience in all types of excavation projects throughout the region. We strive to deliver the highest level of service in the industry at a competitive price.

Sewer and Water Line Installations - Engineered and code compliant trenching and installation of pipe systems. Grading and Site Work - Rough grading, fine grading, utility work, trenching, and more with finish topography in mind. Pipe Bursting - A trenchless method of replacing buried defective pipelines without the need for a traditional construction trench. We have over three years of experience and can burst form 4" to 12" with our machine.

What's new?

Moving right along at the new middle school.

Posted on Jul 11, 2019  •  Facebook

Getting all geared up to put some more pipe in the ground.

Posted on Mar 06, 2019  •  Facebook