Professional Service — Gallatin County, MT

A strong foundation starts with precision excavation. We specialize in foundation excavation for commercial buildings, custom homes, cabins, and more.

Foundation Excavation in Gallatin County

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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.

Custom home foundation expertise
Proper drainage preparation
Backfill and compaction

Key Benefits

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.
A standard residential foundation dig typically takes 2-4 days depending on soil conditions, size, and access to the site. Rockier lots in foothill areas or larger commercial foundations can take longer. We give you a specific timeline during your free estimate.
Most foundation work tied to new construction requires a building permit, typically pulled by your general contractor or builder. We coordinate directly with your team and the county to make sure excavation depth and timing line up with inspection requirements.