Finding the right Montana septic system installers is essential for homeowners and businesses needing reliable wastewater solutions. Whether you’re installing a new system, upgrading an existing one, or requiring maintenance, choosing a licensed professional ensures compliance with Montana’s septic regulations.

Septic systems in Montana must meet statewide and local health department requirements, which vary depending on soil type, lot size, and groundwater conditions. Regulations are overseen by the Montana Department of Environmental Quality (DEQ), with county-specific guidelines affecting installation and maintenance.

Montana’s diverse terrain presents unique challenges for septic systems. Areas with rocky soil, high water tables, or extreme winters require specialized solutions, such as mound systems, advanced treatment units, or engineered designs. Experienced septic contractors can assess your site and recommend the best system for long-term efficiency.

This directory connects you with licensed Montana septic system installers offering residential, commercial, and alternative system solutions. Browse by region to find local experts who provide services like installation, inspections, pumping, repairs, and environmentally friendly wastewater management.

Start exploring now to find trusted Montana septic professionals who ensure compliance, efficiency, and reliability.

Table of Content

• Beaverhead County
• Carbon County
• Cascade County
• Custer County
• Deer Lodge County
• Flathead County
• Gallatin County
• Lake County
• Lewis and Clark County
• Missoula County
• Ravalli County
• Yellowstone County

Montana

Beaverhead County

Klasen Septic Tank Service

• Contact Phone: (406) 683-2063
• Email Address: Not Available
• Website: https://www.klasenseptic.com/
• Physical Address: 55 Pioneer Drive, Dillon, MT 59725
• Services Offered: Septic tank pumping, septic system maintenance, portable toilet rentals
• Specialties or Unique Capabilities: Licensed in over 9 counties, including Beaverhead, Madison, and Jefferson
• Years in Business: Since 1984

Badger Pass Septic Service

• Contact Phone: Not Available
• Email Address: Not Available
• Website: Not Available
• Physical Address: Not Available
• Services Offered: Septic tank pumping, septic system installation, excavating services, drain field replacements
• Specialties or Unique Capabilities: High-quality service at low rates
• Years in Business: Over 20 years

South West Septic

• Contact Phone: (406) 201-7997
• Email Address: Not Available
• Website: https://www.southwestsepticmt.com
• Physical Address: Alder, MT 59710
• Services Offered: Septic system installation, cleaning, and maintenance
• Specialties or Unique Capabilities: Serving Madison County and surrounding areas
• Years in Business: Not Available

Montana Septic Permit

Carbon County

Carbon County Sewer LLC

• Contact Phone: (406) 794-4946
• Email Address: Not Available
• Website: https://www.carboncountysewerco.com/
• Physical Address: P.O. Box 289, Roberts, MT 59070
• Services Offered: Septic tank pumping, clogged sewer line repair, sewer backups
• Specialties or Unique Capabilities: Serving over 600 residents and businesses in Carbon and Stillwater Counties
• Years in Business: Since 1990

Wytana Septic and Dump Services

• Contact Phone: (406) 425-1402
• Email Address: Not Available
• Website: https://wytanallc.com/
• Physical Address: Not Available
• Services Offered: Septic system installation, repair, inspection, cleaning, grease trap cleaning
• Specialties or Unique Capabilities: Serving Park, Big Horn, and Carbon Counties in Montana and Wyoming
• Years in Business: Not Available

Arrow Septic and Sewer Services, LLC

• Contact Phone: (406) 850-7178
• Email Address: Not Available
• Website: https://arrowsepticandsewer.com/
• Physical Address: Shepherd, MT 59079
• Services Offered: Septic tank installation and repair, septic pumping, portable restroom rental, drain field installation and repair, RV pumping, grease trap pumping
• Specialties or Unique Capabilities: Serving multiple counties, including Carbon County
• Years in Business: Not Available

Landscaping Tips for Septic Drain Fields

Western Septic and Vacuum Services

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://www.westernsepticmt.com/
• Physical Address: Not Available
• Services Offered: Septic system installation, septic tank pumping, septic inspections
• Specialties or Unique Capabilities: Serving Billings, Laurel, and surrounding areas, including Carbon County
• Years in Business: Not Available

R.L. Frank Septic Service

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://robertfrankseptic.com/
• Physical Address: Not Available
• Services Offered: Septic tank pumping, septic system maintenance
• Specialties or Unique Capabilities: Licensed in Yellowstone, Stillwater, Carbon, and Golden Valley Counties
• Years in Business: Not Available

Cascade County

Diamond Excavation LLC

• Contact Phone: (406) 788-5787
• Email Address: diamondexcavationllc@gmail.com
• Website: https://www.diamondexcavationllc.com/septic-systems-and-water-lines
• Physical Address: Great Falls, MT
• Services Offered: Septic system installation, water line trenching, site preparation, driveway and pathway construction, land clearing, material hauling
• Specialties or Unique Capabilities: Over 30 years of experience in excavation and septic services
• Years in Business: Not Available

Do’s and Don’ts of Septic-Safe Products

Schaefer Excavating LLC

• Contact Phone: (406) 691-0932
• Email Address: Not Available
• Website: https://schaeferexcavatingmt.com/great-falls-montana-excavation/
• Physical Address: Great Falls, MT
• Services Offered: Septic system installation, site preparation, utilities and waterlines installation, concrete work, driveway maintenance
• Specialties or Unique Capabilities: Comprehensive excavation services
• Years in Business: Not Available

Montana Septic & Sewer

• Contact Phone: (406) 207-3735
• Email Address: Not Available
• Website: https://www.montanaseptic.com/
• Physical Address: Great Falls, MT
• Services Offered: Septic system pumping, sewer services for residential and commercial clients
• Specialties or Unique Capabilities: Veteran-owned and operated
• Years in Business: Not Available

Custer County

American Septic WRX

• Contact Phone: (406) 951-3755
• Email Address: Not Available
• Website: Not Available
• Physical Address: Edgewood St, Miles City, MT 59301
• Services Offered: Septic system maintenance, repairs, installations
• Specialties or Unique Capabilities: Serving residential and commercial properties
• Years in Business: Not Available

Roughstock Construction & Septics

• Contact Phone: (406) 853-3563
• Email Address: Not Available
• Website: Not Available
• Physical Address: 1106 Cale Avenue, Miles City, MT 59301
• Services Offered: Septic tank pumping, septic tank installation, septic system construction
• Specialties or Unique Capabilities: Not Available
• Years in Business: Not Available

Deer Lodge County

Great Divide Septic & Pumping

• Contact Phone: (406) 563-5062
• Email Address: Not Available
• Website: https://greatdivideseptic.com/
• Physical Address: 608 Walnut Street, Anaconda, MT 59711
• Services Offered: Septic tank pumping, septic system maintenance
• Specialties or Unique Capabilities: Serving Philipsburg, Anaconda, Drummond, Georgetown Lake, Deer Lodge, and Helena
• Years in Business: Not Available

How Pumping Prevents Septic Failure

Flathead County

Ready Freddy Septic Service

• Contact Phone: (406) 752-4552
• Email Address: readyfreddyservices@gmail.com
• Website: https://www.readyfreddy.co/
• Physical Address: 243 Rhodes Draw, Kalispell, MT 59901
• Services Offered: Septic tank pumping, repair, new septic design and installation, tank locating, septic pump installation, drain field power washing
• Specialties or Unique Capabilities: Emergency services, modern fleet vehicles
• Years in Business: Over 25 years

A-1 Sanitation

• Contact Phone: (406) 752-3937
• Email Address: Not Available
• Website: https://www.a1sanitationmt.com/
• Physical Address: Kalispell, MT
• Services Offered: Septic tank pumping, drain line cleaning
• Specialties or Unique Capabilities: Specializes in difficult access situations
• Years in Business: Since 1991

Pedersen & Co Pumping, Inc.

• Contact Phone: (406) 752-4321
• Email Address: pedersen.co.pumping@gmail.com
• Website: https://www.pedersenpumping.com/
• Physical Address: 11 McMannamy Draw, Kalispell, MT 59901
• Services Offered: Septic tank pumping, maintenance, grease trap cleaning, sewer line camera inspections, water jetting
• Specialties or Unique Capabilities: Serving the Greater Flathead Valley since 1959
• Years in Business: Over 35 years

Gallatin County

TLC Services

• Contact Phone: (406) 388-4420
• Email Address: Not Available
• Website: https://tlcservicesmt.com/
• Physical Address: Belgrade, MT
• Services Offered: Septic inspections, septic tank pumping, drain field repair, septic system installation, excavation, portable toilet rentals, hydro seeding, hydro excavation, gravel shooting
• Specialties or Unique Capabilities: Comprehensive services with modern equipment; licensed in 4 counties for septic installation and in 56 counties for septic pumping
• Years in Business: Not Available

Altitude Contracting

• Contact Phone: (406) 451-8062
• Email Address: Not Available
• Website: https://www.altitudecontractingmt.com/
• Physical Address: Bozeman, MT 59718
• Services Offered: Septic tank installation, concrete services, project planning, building maintenance
• Specialties or Unique Capabilities: Turn-key services with over 24 years of experience; licensed in Park, Madison, and Gallatin Counties
• Years in Business: Since 2017

Advanced WasteWater Specialists (AWWS)

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://www.goawws.com/
• Physical Address: Not Available
• Services Offered: Septic system installation, maintenance, service maintenance agreements, troubleshooting of pumps and controls
• Specialties or Unique Capabilities: Staff with over 30 years of combined experience; certified wastewater and public water system operators; MSHA trained for above-ground safety regulations
• Years in Business: Not Available

406 Septic Service

• Contact Phone: (406) 451-6441
• Email Address: info@406septicservice.com
• Website: https://406septicservice.com/
• Physical Address: PO Box 1050, Belgrade, MT 59714
• Services Offered: Septic inspections, repair, maintenance, installations
• Specialties or Unique Capabilities: Extensive experience in design and functionality of various septic system types
• Years in Business: Not Available

Lake County

Bonner Contracting LLC

• Contact Phone: (406) 833-0333
• Email Address: Not Available
• Website: https://bonnercontractingllc.com/septic-systems
• Physical Address: Polson, MT 59860
• Services Offered: Septic system design, new installations, alterations to existing systems, permitting assistance
• Specialties or Unique Capabilities: Collaboration with experienced septic system designers; coordination with Lake, Missoula, and Flathead county environmental health officials to ensure compliance with regulations
• Years in Business: Not Available

Lewis and Clark County

Big Sky Septic Pumping & Service

• Contact Phone: (406) 227-9845
• Email Address: Not Available
• Website: https://bigskyseptic.com/
• Physical Address: Helena, MT
• Services Offered: Septic tank maintenance, drain cleaning, certified inspections, frozen line thawing, high-pressure jetting, grease and car wash pumping, septic installation and rejuvenation
• Specialties or Unique Capabilities: Certified O&M inspector; equipped for high-pressure jetting and frozen line thawing
• Years in Business: Not Available

Capital Septic Service

• Contact Phone: (406) 431-8578
• Email Address: Not Available
• Website: https://capitalsepticmt.com/
• Physical Address: Helena, MT
• Services Offered: Septic system maintenance, septic pumping
• Specialties or Unique Capabilities: Professional septic pumping with state-of-the-art equipment
• Years in Business: Not Available

Platinum Dirt Works

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://platinumdirtworks.com/concrete/
• Physical Address: Helena, MT
• Services Offered: Septic system installation, maintenance
• Specialties or Unique Capabilities: Advanced septic solutions with a focus on environmental stewardship
• Years in Business: Not Available

R & R Pump Co.

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://www.rrpumpco.com/
• Physical Address: 907 Euclid Ave, Helena, MT
• Services Offered: Septic system products and services, plumbing and heating supplies
• Specialties or Unique Capabilities: Wide variety of products; experienced staff
• Years in Business: Not Available

Missoula County

GBC Ground Breaking Construction, LLC

• Contact Phone: (406) 581-4737
• Email Address: Not Available
• Website: https://gbcexcavation.com/
• Physical Address: 12199 Pulp Mill Road, Missoula, MT 59808
• Services Offered: Septic system installation, repair, excavation, demolition, landscaping
• Specialties or Unique Capabilities: Expert septic tank repair and installation
• Years in Business: Not Available

Caddis Excavation

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://www.excavatemissoula.com/
• Physical Address: Missoula, MT
• Services Offered: Septic system installation, site survey, soil testing
• Specialties or Unique Capabilities: Environmentally safe wastewater management solutions
• Years in Business: Not Available

Economy Excavating

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://economyexcavatingmontana.com/
• Physical Address: Missoula, MT
• Services Offered: Septic system installation and repair, waterline installation, excavation
• Specialties or Unique Capabilities: Serving Missoula and Ravalli Counties
• Years in Business: Not Available

Ravalli County

Bitterroot Valley Septic LLC

• Contact Phone: (406) 642-6024
• Email Address: Not Available
• Website: https://www.bitterrootvalleyseptic.com/
• Physical Address: 1660 US Hwy 93 N, Victor, MT 59875
• Services Offered: Septic pumping, maintenance
• Specialties or Unique Capabilities: Over 10 years of experience in septic services
• Years in Business: Not Available

Economy Excavating

• Contact Phone: (406) 239-5474
• Email Address: Not Available
• Website: https://economyexcavatingmontana.com/
• Physical Address: 5353 First St, Florence, MT 59833
• Services Offered: Septic system installation and repair, waterline installation, excavation
• Specialties or Unique Capabilities: Serving Missoula and Ravalli Counties
• Years in Business: Not Available

Yellowstone County

Arrow Septic and Sewer LLC

• Contact Phone: (406) 850-7178
• Email Address: Not Available
• Website: Not Available
• Physical Address: PO Box 75, Shepherd, MT 59079
• Services Offered: Septic system installation and repair, sewer services
• Specialties or Unique Capabilities: Licensed installer in Yellowstone County
• Years in Business: Not Available

Andersen Sewer Service

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://andersensewerservice.com/
• Physical Address: Billings, MT
• Services Offered: Septic pumping, grease trap cleaning
• Specialties or Unique Capabilities: Serving Yellowstone County since 1984
• Years in Business: Over 40 years

Bangert Construction and Excavation

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://bangertconstruction.com/services/septic-systems/
• Physical Address: Billings, MT
• Services Offered: Septic system installation, leach field expertise
• Specialties or Unique Capabilities: Licensed installer in Yellowstone, Carbon, and Fergus counties
• Years in Business: Not Available

TLC Patriot Septic and Excavation LLC

• Contact Phone: Not Available
• Email Address: Not Available
• Website: https://tlcpatriotservicesmt.com/services/engineering-designing-permitting/
• Physical Address: Billings, MT
• Services Offered: Septic system engineering, design, permitting, installation
• Specialties or Unique Capabilities: Licensed statewide in Montana
• Years in Business: Not Available

Western Septic and Vacuum Services

• Contact Phone: (406) 298-0650
• Email Address: westernsepticandvac@gmail.com
• Website: https://www.westernsepticmt.com/
• Physical Address: PO Box 671, Park City, MT 59063
• Services Offered: Septic system installation, repairs, pumping, sewer jetting
• Specialties or Unique Capabilities: Serving Yellowstone, Carbon, and Stillwater Counties
• Years in Business: Not Available

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