Get matched with top septic tank pros in Townsend, MT

Q: How long does an anaerobic septic system last?

• <div><p>On average, septic systems last between 15 and 20 years. However, with <a href="https://www.angi.com/articles/4-tips-extend-your-septic-system-s-lifespan.htm">proper care and routine septic maintenance</a>, you may be able to extend your septic system&rsquo;s life span to 30 years (or more). Some ways to keep your system in tip-top shape include scheduling a professional inspection every two to five years and reducing the flow of wastewater into your system.</p></div>

Q: How deep should the drain field be under the ground?

• <div><p>Your drain field or leach field should be <b>1 to 3 feet</b> under the ground. It will be a little shallower than the septic tank, although it can be the same depth or slightly deeper. The <a href="https://www.angi.com/articles/how-deep-is-septic-tank.htm">proper depth of the septic tank</a> is up to <b>4 feet</b>. It&rsquo;s possible that your local regulatory agency requires a certain depth for your drain field.</p></div>

Q: Are cesspools legal?

• <div><p>With so much available information about the ecological effects of cesspools (and their general unpleasantness), it begs the question: <a href="https://www.angi.com/articles/are-cesspools-legal.htm">Are cesspools legal?</a> In short, sort of. Large-capacity cesspools that serve more than 20 people are completely illegal countrywide. Existing, smaller cesspools are generally allowed as long as they&rsquo;re not actively polluting. However, new cesspools are illegal to build in all 50 states and Puerto Rico, and many states offer programs to help homeowners with the <a href="https://www.angi.com/articles/converting-cesspool-to-septic-cost.htm">costs of updating cesspools to modern septic systems</a>.</p></div>

Q: How much does it cost to replace or install a new septic tank?

• <div><p>The average cost to replace a septic tank or install a new system is typically around $7,350, with a broader average range of $5,000 to $12,000. However, total project costs can vary widely, from $5,000 to as much as $22,500. Key factors influencing the price include the size and type of the septic system, the tank material, and the size of your house.</p><p>It's important to distinguish between the cost of the tank itself and the cost of the entire system installation, which is significantly more. For the tank alone, costs vary by size:</p><ul><li><p>A tank for a one-bedroom house typically costs $500 to $900.</p></li><li><p>A 1,000-gallon tank, suitable for most one- to three-bedroom homes, costs between $900 and $1,500.</p></li><li><p>A tank for a five- or six-bedroom home generally costs $1,200 to $1,600.</p></li></ul></div>

Q: What are the signs of a bad well pressure tank?

• <div><p>Several warning signs can indicate current or future issues with your well pressure tank. If you notice inconsistent water pressure, water spitting from your faucets, clicking sounds, or electricity bill spikes without other obvious causes, it may be time to get your pressure tank and well system looked at by a professional.</p></div>

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Verified Reviews for Septic Tank Service pros in Townsend, MT

*The Angi rating for Septic Tank Service companies in Townsend, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

*The HomeAdvisor rating for Septic Tank Service companies in Townsend, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

Last update on July 03, 2026

Reviewed in July 2026
Every detail of the project was discussed. I felt like I was with a friend who was looking out for my best interest.
DaBella - Bozeman (Bath/Siding)
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Reviewed in June 2026
Customized modification to roof and vent
Mountain Valley Gutters, LLC
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Reviewed in September 2025
Elkhorn Insulation did an amazing job insulating my new home. Travis (the owner) and his crew were fast, efficient and did clean work. They insulated my home in the middle of summer when the afternoons were getting close to 100 degrees, after they were finished the inside didn’t get above 72...
Elkhorn Insulation, Inc.
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Reviewed in February 2025
Aaron remodeled a bathroom for us as well as a few other small projects. We’ve always been extremely happy with the finished product. He was always on time and very easy to work with. I’d highly recommend Aaron and six point builders!
6 Point Builders
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Reviewed in July 2024
We love our windows and 1 door that was installed. These guys were very professional and explained the whole process. The walk through after was very thorough but they did such a great job there was nothing for them to do. Very happy with the whole project.
Renewal by Andersen of Montana
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Reviewed in July 2024
H&H Excavation have done a great job with several client jobs' of mine. Excellent communication and a ready to work mentality. I would highly recommend H&H for all your excavation and dirt work needs.
H&H Excavation
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Reviewed in April 2024
They do a great job and are very friendly.
Ruiz Drywall, LLC
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Reviewed in October 2023
Tonya does a great job of cleaning my own home and a cottage we vrbo. Always detailed oriented thorough and communicates when she’ll be there. Her rates are very competitive and her invoices are prompt and detailed. Very happy with her services!
Make It Sparkle Cleaning LLC
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Reviewed in April 2022
I would recommend them for any type of residential roofing project!
Underdog Roofing & Construction
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Reviewed in February 2022
Nathan was able to fit us into his schedule and did a great job installing the carpet. Would definitely use him again! Thank you!!
Freedom Flooring
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Find Septic tank pros in Townsend

K & E Enterprises, Inc.

5.0(

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Townsend, MT and surrounding areas

In business since 2007

Free estimates

Response time2 days

Recommended by100%of homeowners

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Townsend, MT and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"Well. Only problem was delay in response time after claim was filed online. Water tank started leaking Thanksgiving morning and no reply until I called the Regional Manager."

Recommended by81%of homeowners

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Townsend, MT and surrounding areas

In business since 2017

Free estimates

Emergency services offered

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time3 hrs

Recommended by100%of homeowners

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American Home Shield – Home Warranty

3.5(

5,688

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Townsend, MT and surrounding areas

In business since 1971

Credit card accepted

"Takes for ever to get a return a call. Also took a week to get someone out for repairs. They said they would reimburse me for septic repairs and it took over 3 months for that to happen."

Recommended by65%of homeowners

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Townsend, MT and surrounding areas

In business since 2014

Free estimates

Credit card accepted

I'm Peter Harris and I am the owner/proprietor of Simple Works here in the Gallatin Valley. I specialize in home renovation with emphasis in kitchen and bathroom reworks. Simple Works does both home and commercial remodeling, small scale and large. I work with other business owners around the valley who, combined with my skill set, can get any job done! I enjoy meeting people and making their vision come to life through the renovation work Simple Works does. Call or email to get your project started today!

Recommended by85%of homeowners

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KMD Construction LLC

New to Angi

Septic System - Install or ReplaceSeptic System - Repair

Serving Townsend, MT and surrounding areas

Free estimates

Emergency services offered

Small jobs welcome

We are an excavation/concrete company we do septic tanks, sidewalks, driveways, landscaping, demolition, and fencing. We are here for all your needs. Give us a call at 406-465-7954 for a free quote

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Thin Air Excavation

New to Angi

Septic System - Install or Replace

Serving Townsend, MT and surrounding areas

In business since 2022

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!\n

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Devers Excavation Contracting

New to Angi

Septic System - Install or Replace

Serving Townsend, MT and surrounding areas

In business since 2024

Free estimates

Offers commercial services

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Rocky Mountain Excavation & Grading, LLC

New to Angi

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Townsend, MT and surrounding areas

In business since 2018

Free estimates

Emergency services offered

Rocky Mountain Excavation & Grading, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.\n

Response time12 hrs

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DWE DIRT WORKS INC

New to Angi

Septic System - Install or Replace

Serving Townsend, MT and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

DWE DIRT WORKS INC is committed to excellence in every aspect of our\nbusiness. We uphold a standard of integrity bound by fairness, honesty,\nand personal responsibility. Our distinction is the quality of service\nwe bring to our customers. Accurate knowledge of\nour trade combined with ability is what makes us true professionals.\nAbove all, we are watchful of our customers' interests and make their\nconcerns the basis of our business.\n

Response time2 days

Request Quote

Septic Tanks questions, answered by experts

On average, septic systems last between 15 and 20 years. However, with proper care and routine septic maintenance, you may be able to extend your septic system’s life span to 30 years (or more). Some ways to keep your system in tip-top shape include scheduling a professional inspection every two to five years and reducing the flow of wastewater into your system.

Your drain field or leach field should be 1 to 3 feet under the ground. It will be a little shallower than the septic tank, although it can be the same depth or slightly deeper. The proper depth of the septic tank is up to 4 feet. It’s possible that your local regulatory agency requires a certain depth for your drain field.

With so much available information about the ecological effects of cesspools (and their general unpleasantness), it begs the question: Are cesspools legal? In short, sort of. Large-capacity cesspools that serve more than 20 people are completely illegal countrywide. Existing, smaller cesspools are generally allowed as long as they’re not actively polluting. However, new cesspools are illegal to build in all 50 states and Puerto Rico, and many states offer programs to help homeowners with the costs of updating cesspools to modern septic systems.

The average cost to replace a septic tank or install a new system is typically around $7,350, with a broader average range of $5,000 to $12,000. However, total project costs can vary widely, from $5,000 to as much as $22,500. Key factors influencing the price include the size and type of the septic system, the tank material, and the size of your house.

It's important to distinguish between the cost of the tank itself and the cost of the entire system installation, which is significantly more. For the tank alone, costs vary by size:

A tank for a one-bedroom house typically costs $500 to $900.
A 1,000-gallon tank, suitable for most one- to three-bedroom homes, costs between $900 and $1,500.
A tank for a five- or six-bedroom home generally costs $1,200 to $1,600.

Several warning signs can indicate current or future issues with your well pressure tank. If you notice inconsistent water pressure, water spitting from your faucets, clicking sounds, or electricity bill spikes without other obvious causes, it may be time to get your pressure tank and well system looked at by a professional.

The Townsend, MT homeowners’ guide to septic tank services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Taylor Freitas
•
Mar 18, 2026Mar 18, 2026
How Much Does Septic Tank Repair Cost? [2026 Data]
A damaged septic system can leak odors and sewage, so repairs are urgent. Find out how much septic tank repair costs based on repair type, tank size, and more.
Melissa Graham
•
Aug 3, 2026Aug 3, 2026
How Much Does It Cost to Locate a Septic Tank? [2026 Data]
If it’s been there for a while, it can be hard to find the septic tank in your yard. Learn how much it costs to locate a septic tank with this guide.
D.P. Taylor
•
Jul 15, 2026Jul 15, 2026
Crank Up Your Understanding of Septic Tank Volume
It’s crucial to install a septic tank with the right volume to avoid wastewater backups. This guide will help you calculate the right septic tank volume.
Jamie Cattanach
•
Jul 10, 2026Jul 10, 2026
What’s the Right Septic Tank Size for Me?
Septic tank sizes vary depending on the size of your home, how many people live there, how much water you use, and more. Read on to learn how to determine the right size for you.
Taylor Freitas
•
Jul 9, 2026Jul 9, 2026
Are Septic Tanks Bad? Pros and Cons to Consider Before Moving Into a House With a Septic System
If you’ve never lived in a house with a septic system before, you might be wondering: Are septic tanks bad? Here are some of the pros and cons.
Taylor Freitas
•
Jul 9, 2026Jul 9, 2026
How to Build a Small Septic Tank for a Rural Property
Want to learn how to build a septic tank for your rural or off-grid property? First, check your local laws, then dive into these general guidelines.