Utility Excavation Services in

Flathead County

Dependable Trenching and Utility Installation

Underground utility installation is a critical part of any property development or infrastructure upgrade. Columbia MTN Excavation provides precision trenching and excavation services for residential utility lines in Flathead County. Whether you're running new service or replacing outdated systems, we deliver safe, code-compliant results.

Full-Service Utility Excavation

We install and repair key utility lines including:

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Water Lines


Reliable water line trenching and installation with proper depth, grade, and backfill to prevent freezing or collapse.

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Sewer Systems


From gravity-fed lines to pressurized systems, we provide excavation services that meet Flathead County requirements.

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Electrical and Communication Conduit

We excavate safe, clearly marked trenches for power, internet, and phone lines with minimal property disruption.

Grading and Leveling

Proper grading ensures stable construction and efficient water drainage, protecting your property for years to come.

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Storm Drainage

We install drainage piping, culverts, and stormwater channels to protect your property from runoff and erosion.

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Gas Line Trenches

Our team safely trenches for residential propane or natural gas lines in compliance with all safety standards

Failed system recovery

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Ideal for:

01

Consultation & Site Marking

We identify existing utilities and determine the safest trenching route.

02

Excavation & Installation

Using modern machinery and laser grading tools, we excavate to spec.

03

Inspection & Backfill

We support all necessary inspections and properly backfill for long-term stability.

Why Work with Columbia MTN?

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Local Utility Knowledge


We understand Flathead County’s utility codes and utility location processes.

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Safe & Precise Excavation

Our team uses GPS and hand-digging near existing lines.

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Quick Turnaround


We work efficiently to get your services in place fast.

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Fully Insured


We protect your property and infrastructure at every step.

Common Utility Projects

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New home utility trenching

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Replacement of aging water or sewer lines

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Rural property utility hookups

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Septic to sewer conversions

Testimonials

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Columbia MTN Excavation installed new water and electrical lines for our build—on time, on budget, no surprises.

Lance Miguel
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They worked fast, coordinated with our electrician, and got the trenching done in a single day.

Ian Mendez

Need Utility Trenching?

Contact our team for a fast quote and efficient service. We’re available 24/7.