Septic System Installation in Montana: Trusted Services in Helena, Butte, Bozeman & Great Falls

Septic system installation with exposed tank and drain field before backfilling in Montana
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By Schaefer Excavating | June 24, 2025

When it comes to reliable, long-lasting septic system installation in Montana, Schaefer Excavating is the trusted name for homeowners and contractors in Helena, Butte, Bozeman, Great Falls, and surrounding communities. We understand the unique challenges of working in Montana’s diverse soil types, varied terrain, and harsh seasonal weather. That’s why we offer tailored septic solutions to keep your property functioning efficiently—no matter where you are in Big Sky Country.

Why Septic Systems Matter in Montana

Montana is known for its wide-open spaces, rural properties, and off-grid living—many homes and businesses don’t have access to municipal sewer systems. That’s where septic systems come in. A properly designed and installed septic system manages wastewater safely and sustainably, protecting your home and the surrounding environment.

But not all systems—or installers—are created equal. Schaefer Excavating brings decades of experience and local expertise to every job, making sure your septic system is built to code and built to last.


Comprehensive Septic Services from Start to Finish

We’re more than just diggers. Our process is comprehensive and focused on delivering a smooth, stress-free experience for you:

1. Site Evaluation & Planning

Every property is different. We begin with a site evaluation, including:

  • Soil percolation testing

  • Slope and drainage assessment

  • Local code and permit requirements

We’ll recommend the right system type for your property—whether it’s a gravity-fed system, pressure distribution system, or an advanced treatment unit.

2. Custom System Design

Our licensed professionals design a septic system that meets your needs and Montana’s state regulations. We consider:

  • Household or business size

  • Soil absorption rate

  • Distance from wells, structures, and water sources

3. Expert Installation

Our skilled team uses modern equipment to handle every aspect of installation:

  • Excavation and trenching

  • Septic tank placement

  • Drainfield layout and backfill

  • Component installation (pumps, filters, risers)

4. Inspection and Finalization

We coordinate with local inspectors to ensure your system passes all required checks before backfilling. You get peace of mind knowing it’s done right.


Signs You May Need a New Septic System

Even the best systems don’t last forever. If you’re noticing these warning signs, it may be time to replace or upgrade your septic system:

  • Standing water in your yard near the drainfield

  • Foul odors around the tank or drainfield area

  • Slow or backed-up drains inside your home

  • Lush grass growing faster over the drainfield

Whether you’re replacing an old system or installing one for new construction, Schaefer Excavating is here to help.


Serving Communities Across Montana

We proudly serve residential and commercial customers across Western and Central Montana:

Helena, MT

As our home base, we’ve served homeowners in Helena for years. From South Hills to East Helena, we’ve installed and repaired septic systems for new builds, cabin retreats, and rural ranches alike. Helena’s rocky soil and sloped lots make professional evaluation and trenching essential.

Butte, MT

In the Butte area, legacy properties and aging infrastructure often require septic upgrades or complete replacements. We work closely with local officials to ensure compliance and reliability. We’re familiar with Butte’s mining history, heavy soils, and high water tables—no surprises for our crew.

Bozeman, MT

Bozeman is growing fast. Whether you’re developing land or building a custom home in Gallatin County, we provide efficient septic installation for both urban outskirts and rural neighborhoods. Bozeman’s mix of clay and gravel-based soils requires a precise drainage solution—and we know how to get it done.

Great Falls, MT

Great Falls and Cascade County feature a range of soil conditions and land types. Whether you’re outside city limits or managing an agriculture property, we provide septic systems that stand the test of time. Our team is also available for system repairs, component upgrades, and emergency service.


What Makes Schaefer Excavating Different?

There are plenty of contractors out there—but here’s what sets us apart:

✔ Local Expertise

We know Montana. From permitting to frost depth, soil types to seasonal work windows—we’ve built systems in some of the toughest terrain and tightest timelines.

✔ Family-Owned Values

As a family-run business, we believe in doing the job right and treating customers with respect. You’ll never get upsold or left in the dark.

✔ Transparent Pricing

We provide free, detailed estimates up front—so there are no surprises later. And we offer competitive rates for full system installs and replacements.

✔ Full Licensing and Insurance

Your investment is protected. We’re licensed to install septic systems throughout the state and fully insured for your peace of mind.


Frequently Asked Questions (FAQ)

Q: How long does septic installation take?
A: Most installations take 3–5 days, depending on weather, site conditions, and permitting.

Q: What size tank do I need?
A: It depends on the number of bedrooms or users. Typical residential tanks range from 1,000 to 1,500 gallons.

Q: Can you repair or replace just the drainfield?
A: Yes—we can diagnose and repair failing drainfields without full system replacement if conditions allow.

Q: How often should a septic tank be pumped?
A: Every 3–5 years, depending on usage.


Get a Free Septic System Estimate Today

At Schaefer Excavating, we’re proud to offer dependable, code-compliant septic system installation in Helena, Butte, Bozeman, and Great Falls. Whether you’re building new, remodeling, or dealing with septic failure—we’re the team Montana trusts.

📍 Serving Western & Central Montana
📞 Call 406-691-0932
🌐 https://schaeferexcavatingmt.com

Why Choose Schaefer Excavating for Septic Services in Helena?

  • Expertise:Experience in septic system installation, repairs, and maintenance in Helena, Montana.
  • Customized Solutions: Services tailored to Helena’s unique climate and soil conditions.
  • Trusted Service: Licensed and insured professionals dedicated to your satisfaction.

Contact Us for Septic System Maintenance in Helena, Montana
Don’t wait for a problem to arise—schedule your septic system maintenance today! Call 406-691-0932 or email trevon@SchaeferExcavating.com to learn more about how we can help.

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