Professional Service — Gallatin County, MT

Hennessy Development provides professional utility trenching for water, sewer, gas, electrical, and communications lines throughout the Gallatin Valley.

Utility Trenching and Excavation in Gallatin County

Get a Free Estimate

Call Now (406) 209-5886

Utility Trenching and Excavation

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 because 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.

Water and sewer line trenching
Electrical conduit trenching
Proper depth and bedding

Key Benefits

Gas line excavation
Communications and fiber
Code-compliant installations

Explore Our Service Areas

We provide excavation and earthwork services throughout southwest Montana. Click on one of these to for your area.

Gallatin County

Bozeman

Belgrade

Big Sky

Livingston

Manhattan, MT

Gallatin Gateway

Four Corners

All Service Areas

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.
A standard residential trench of 100–200 feet can often be completed in a day, depending on soil conditions, depth, and how many utilities are being run. Larger or more complex runs, multiple utilities, obstacles, and/or difficult soil take longer. We provide specific timelines along with a free estimate.