PROFESSIONAL EXCAVATION & SITE DEVELOPMENT
From foundations and septic systems to grading and land clearing, Hennessy Development delivers reliable earthwork solutions throughout Gallatin County.
EXCAVATION CONTRACTOR — BOZEMAN, MT
At Hennessy Development, we specialize in a wide range of excavation services tailored to meet your specific needs. From foundation work to land clearing, our experienced team ensures quality and efficiency in every project.
EXCAVATION & EARTHWORK SERVICES
Our Services
EXCAVATION
Full service residential and commercial excavation throughout the Gallatin Valley
UTILITY TRENCHING
Water, sewer, gas, and electrical utility excavation and installation.
SEPTIC SYSTEMS
Complete septic system installation, design, and repair in Gallatin County.
SITE PREPARATION
Complete site work including grubbing, stripping, and subgrade preparation.
LANDSCAPE GRADING
Finish grading, drainage solutions, and landscape shaping for properties.
FOUNDATION EXCAVATION
Precision foundation excavation for custom homes, cabins, and commercial structures.
LAND CLEARING
Brush removal, tree clearing, and lot preparation for new construction.
CONCRETE WORK
Full service residential and commercial excavation throughout the Gallatin Valley
Why Choose Us
Built on Trust & Precision
Hennessy Development is built on the kind of work ethic Montana is known for: early mornings, tough conditions, and doing the job right the first time. We bring local knowledge, modern equipment, and unwavering dedication to every site in the Gallatin Valley.
QUALITY WORK
Proven track record of delivering exceptional excavation and earthwork results.
HONEST SERVICE
Transparent pricing, honest assessments, and a commitment to doing what is right.
LOCAL EXPERTISE
Deep knowledge of Gallatin County soils, frost depths, and building requirements.
ATTENTION TO DETAIL
Every grade, every trench, every foundation is executed with precision and care.
EXCEPTIONAL COMMUNCATION
We keep you informed at every stage of your project with clear updates and responsive service.
RELIABLE EQUIPMENT
Well-maintained fleet of excavators, loaders, and grading equipment ready for your project.
Featured Projects
EXPLORE OUR WORK
Browse our portfolio of completed excavation, foundation, grading, and site development projects across Gallatin County.
Foundation Excavation
Custom Home Foundation
Bozeman, MT
Septic System
Septic System Install
Gallatin County, MT
Land Clearing
Land Clearing
Bozeman, MT
Grading
Access Road Grading
Bridger Canyon, MT
Utilities
Utility Excavation
Four Corners, MT
Site Development
Complete Site Development
Big Sky, MT
WHAT OUR CLIENTS SAY
Read what property owners and builders say about working with Hennessy Development.
"William has done a variety of work for me, from clearing brush to excavation. His dedication to excellent work shows in the superb results. Always on task, but never too busy to understand the details of the project."
TODD DRONE
Excavation & Land Clearing
"I selected Hennessy Development for my excavation and foundation job for my log cabin. William and his team were exceptional. Their attention to detail and professionalism exceeded expectations."
KARL MECKLENBURG
Cabin Foundation, Big Sky MT
"Hennessy has done a great job on earthwork and utility projects for us. Great communication and very responsive to changes. They've been awesome to work with."
RYAN KRATKY
Earthwork & Utilities
Service Area
BOZEMAN, MT
GALLATIN COUNTY, MT
BELGRADE, MT
BIG SKY, MT
FOUR CORNERS, MT
MANHATTAN, MT
LIVINGSTON, MT
READY TO DIG IN?
Contact Hennessy Development today for a free estimate on your excavation, septic, foundation, or grading project in Gallatin County.
Let's Talk About Your Project
Whether you're building a custom home, installing a septic system, or clearing land for development, we're here to help. Fill out the form and we'll get back to you within one business day to discuss your project.
Gallatin County, Montana
