EXCAVATION & EARTHWORK SERVICES
Our Services
Hennessy Development provides comprehensive excavation, foundation, and site development services for residential and commercial projects in Bozeman and throughout Gallatin County, Montana.
Excavation Services
Hennessy Development provides comprehensive excavation services for residential and commercial projects throughout the Bozeman area and Gallatin County. Our experienced operators and well-maintained equipment deliver precise, efficient excavation for projects of all sizes.
Whether you need a basement dig for a custom home, a pond excavation on your ranch, or commercial site excavation for a new development, we have the expertise and equipment to handle it. We work closely with general contractors, homeowners, and developers to ensure every dig meets exact specifications.
Key Benefits
Precision GPS-guided excavation
Experienced local operators
On-time project delivery
Residential & commercial projects
Competitive pricing
Full clean up included
Frequently Asked Questions
-
Excavation costs vary based on the scope of work, soil conditions, access, and project complexity. We provide free detailed estimates for every project. Contact us for a personalized quote.
-
Small residential excavation projects may take 1-3 days, while larger site development work can take several weeks. We provide timeline estimates during our initial consultation.
-
Yes. We handle basement digs, foundation excavation, trenching, pond excavation, driveway cuts, and complete site excavation for residential and commercial projects.
Foundation Excavation
A strong foundation starts with precision excavation. Hennessy Development specializes in foundation digs for custom homes, cabins, garages, and commercial buildings throughout the Gallatin Valley. We understand that your foundation is the most critical element of your building project.
Our team works with your engineer and builder to ensure exact depth, dimensions, and grade specifications are met. We handle everything from initial site clearing to final backfill, including proper drainage preparation and compaction.
Key Benefits
Custom home foundation expertise
Proper drainage preparation
Backfill and compaction
Precise depth and grade control
Footing and stem wall excavation
Coordination with builders
Frequently Asked Questions
-
We excavate for full basements, crawl spaces, slab-on-grade, pier and beam, and custom foundation configurations. Each dig is tailored to the structural engineer specifications.
-
In Gallatin County, frost depth typically requires footings to be set at 48 inches or deeper. We follow all local building code requirements and engineer specifications for every project.
Hennessy Development provides complete septic system installation services for properties throughout Gallatin County. From initial site evaluation and design coordination through final installation and testing, we deliver septic systems that perform reliably for decades.
Montana regulations require septic systems to be designed and installed to strict standards. Our experience with Gallatin County soil types and regulatory requirements ensures your system is installed correctly the first time, protecting your property and the environment.
Septic System Installation
Key Benefits
Complete system installation
All soil types and conditions
Repair and replacement services
Gallatin County permitted
Conventional & alternative systems
Long-term reliability
Frequently Asked Questions
-
Septic system costs in Gallatin County typically range based on system type, soil conditions, lot layout, and local requirements. We provide free estimates after evaluating your specific property.
-
A typical residential septic system installation takes 3-5 days, depending on the system type and site conditions. More complex systems may require additional time.
-
Yes. A percolation (perc) test is required in Gallatin County to determine soil absorption rates and proper system design. We can coordinate the testing process for you.
Prepare your Montana property for construction with professional land clearing services from Hennessy Development. We provide brush removal, tree clearing, stump grinding, and complete lot preparation for residential and commercial development projects in the Bozeman area.
Our land clearing approach balances efficient clearing with environmental responsibility. We work with property owners to preserve desirable trees and features while creating a clean, build-ready site that meets all local requirements.
Land Clearing
Key Benefits
Brush and tree removal
Lot clearing for construction
Debris hauling and disposal
Stump grinding and removal
Selective clearing available
Environmentally responsible
Frequently Asked Questions
-
Absolutely. We work with property owners to selectively clear only the areas needed while preserving mature trees and natural features that enhance the property.
-
We handle all debris removal, including hauling brush, logs, and stumps off-site. We can also chip material on-site for use as ground cover if desired.
Hennessy Development provides professional utility trenching and excavation services for water, sewer, gas, electrical, and communications lines throughout the Gallatin Valley. Our precise trenching ensures your utilities are installed safely and to code.
We understand the critical nature of utility work—every trench must be the right depth, width, and grade to ensure proper installation and long-term performance. Our experienced operators deliver clean, precise trenches that meet all utility specifications.
Utility Trenching & Excavation
Key Benefits
Water and sewer line trenching
Electrical conduit trenching
Proper depth and bedding
Gas line excavation
Communications and fiber
Code-compliant installations
Frequently Asked Questions
-
Utility trench depths vary by type: water lines typically require 5-6 feet (below frost line), sewer lines vary by grade requirements, and electrical and gas lines follow specific code depths. We follow all Montana and local requirements.
-
Yes. We always locate existing utilities before trenching and take careful measures to protect existing infrastructure while installing new lines.
Proper grading is essential for drainage, aesthetics, and the long-term health of your property. Hennessy Development provides expert landscape grading services for new construction, renovation, and property improvement projects throughout the Bozeman area.
From rough grading to final finish grade, our skilled operators create precise slopes and contours that direct water away from structures, prevent erosion, and create beautiful, functional landscapes. We work to exact specifications and leave your property ready for landscaping or sod.
Landscape Grading
Key Benefits
Rough and finish grading
Driveway grading
Erosion control
Drainage solutions
Yard and lot preparation
Laser-level precision
Frequently Asked Questions
-
Proper grading ensures water flows away from your foundation and structures, preventing moisture damage, flooding, and erosion. It is one of the most important aspects of site work.
-
Rough grading is typically done during site preparation, and final grading is completed after construction is finished but before landscaping. We coordinate with your builder for optimal timing.
Hennessy Development provides comprehensive concrete services including foundations, footings, flatwork, and structural concrete for residential and commercial projects. Our concrete work is built to withstand Montana conditions and exceed expectations.
From forming and pouring residential foundations to finishing driveways and patios, we bring the same precision and attention to detail to every concrete project. Our work is designed to endure Montana freeze-thaw cycles and last for generations.
Concrete Work
Key Benefits
Foundation concrete
Flatwork and driveways
Montana-rated mix designs
Footings and stem walls
Retaining walls
Professional forming and finishing
Frequently Asked Questions
-
We handle foundations, footings, stem walls, slabs, driveways, sidewalks, patios, and retaining walls for residential and commercial properties.
-
Montana weather requires special cold-weather concrete practices including heated water, insulated blankets, and appropriate mix designs. We plan pours to ensure proper curing in all conditions.
Hennessy Development offers turnkey site development services for residential and commercial projects throughout Gallatin County. We handle every phase of site work from initial clearing through final grading, making us your single point of contact for comprehensive site preparation.
Our site development services include land clearing, excavation, foundation preparation, utility installation, grading, and drainage—all managed under one experienced team. This integrated approach ensures better coordination, faster timelines, and consistent quality throughout your project.
Site Development
Key Benefits
Turnkey site preparation
Project management included
Reduced project timelines
Single-source contractor
All phases coordinated
Consistent quality standards
Frequently Asked Questions
-
Our site development services encompass everything from land clearing and rough grading to foundation excavation, utility installation, driveway construction, and final grading. We coordinate all phases to minimize delays.
-
Yes. We work on custom home sites, subdivision development, commercial building pads, and agricultural properties throughout the Gallatin Valley.
READY TO DIG IN?
Contact Hennessy Development today for a free estimate on your excavation, septic, foundation, or grading project in Gallatin County.