Get matched with top septic tank pros in Troy, MT

Q: How often should I pump my septic tank for a family of four?

• <div><p>You should pump your septic tank once every two to four years for a family of four, depending on your septic tank size. You should pump a 1,000-gallon septic tank every two years, while a 1,500-gallon tank should be pumped every four years. Water usage also affects how often you should pump your septic tank. If you notice slow drains, foul smells, or gurgling sounds from your drains, you should pump your septic tank as soon as possible. </p></div>

Q: How much does it cost to dig a well?

• <div><p>Digging a well can cost between <b>$20 and $25,000</b>,<b> </b>depending on your needs. If you&rsquo;re looking to dig a well yourself, all you need is a shovel. If you&rsquo;re looking to have a well drilled by a professional, you can expect to pay around $15 to $30 per foot. The total <a href="https://www.angi.com/articles/how-much-does-well-drilling-cost.htm">cost of drilling a well</a> will average to <b>$5,500</b>.</p></div>

Q: What is a septic tank?

• <div><p>A septic tank is an underground container that collects and holds wastewater until it&rsquo;s sufficiently filtered and broken down. It treats wastewater by separating waste so the leftover liquid can travel into the drainfield where the soil and gravel eventually filter and purify it. This process naturally eliminates bacteria, viruses, and other contaminants.</p></div>

Q: What is the smallest septic system you can install?

• <div><p>The smallest septic system available for purchase typically includes a 750-gallon tank. However, the smallest size you can legally install is determined by local regulations, and many areas require a minimum capacity of 1,000 gallons. The cost to install a small septic system generally ranges from $2,910 to $13,900. Before proceeding, it is essential to check with your local health department or consult a local septic professional to confirm the minimum legal requirements in your area.</p></div>

Q: How long does a septic distribution box last?

• <div><p>Septic distribution boxes, also called D-boxes, tend to last over 30 years if taken care of extremely well. In most cases, however, they tend to last anywhere from 15 years to 40 years. Regular cleaning and maintenance, as well as living in an area that doesn&rsquo;t flood the tank or the system regularly, will all have an impact on the lifespan of the box. </p></div>

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Verified Reviews for Septic Tank Service pros in Troy, MT

*The Angi rating for Septic Tank Service companies in Troy, 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 Troy, 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 November 10, 2025

Reviewed in November 2025
The tree and stump had to be removed for a new pole barn install. David worked with me to level the area needed and have gravel installed and also leveled. I would work with David again for any future projects.
Cabinet Peak Construction LLC
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Reviewed in February 2025
I needed a structural log replacement done on my log house. Joe and the crew did what was needed efficiently. The work matches the existing log construction. I would recommend them.
Amish Construction, LLC
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Reviewed in March 2024
The work surpassed my expectations!! They transformed a useless area in my home into a highly functioning entertainment area for family and friends. The work is outstanding, it was done in a timely manner and well within budget. Ben and Gage are professionals who care about the work they...
Schnetter Construction
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Reviewed in November 2023
These guys were really on top of it. All of our remodeling needs were met & we are ecstatic with the end result.
MAV Construction LLC
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Reviewed in December 2022
I really liked how Korey kept me informed on how things moved together. I wasn't sure when to schedule the plumber etc. He made everything seem easy and it flowed nicely. The crew were extremely friendly and clean. My kitchen is beautiful! The counters are just perfect. I would recommend...
Allen's Granite & Marble
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Reviewed in September 2020
Steady workers. Did a great job and cleaned up after job was finished! ð
Fabian Painting Services
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Reviewed in August 2020
Dustin was a very helpful person. He explained about filtration and helped find my water quantity problem. He also suggested a couple of temp solutions.
Petty John's the Water Store, Inc.
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Reviewed in March 2020
Very professional, and it turned out beautiful
Elk Valley Contracting & Consulting - Ana Sayfa Facebook
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Find Septic tank pros in Troy

Dynamic Plumbing LLC

5.0(

)

Septic System - Repair

Serving Troy, MT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We pride ourselves on professionalism and delivering complete homeowner satisfaction on every job. As a veteran-owned and operated company, we believe in doing the job right the first time and standing behind our work. We never leave a job unfinished or a homeowner less than 100% satisfied with our level of service. Call today to schedule reliable, high-quality plumbing you can trust.

33 neighbors recently requested a quote

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

Serving Troy, 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

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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 Troy, 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

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RKO Excavation

New to Angi

Septic System - Install or Replace

Serving Troy, MT and surrounding areas

In business since 2021

Free estimates

Small jobs welcome

We are a locally owned company based out of Kalispell, Montana. We're dedicated to providing our clients with the very best in service, installation, and repairs. With years of industry experience, we take an enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We can do anything that you need us to do, please reach out today for a free estimate.

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Mountaintop Enterprises, LLC

2.5(

)

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

Serving Troy, MT and surrounding areas

In business since 2011

Free estimates

Emergency services offered

We pride ourselves on being the best Excavation company in the area.\n\nWe've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.\n\nBeing a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

+12

Response time1 day

Recommended by50%of homeowners

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Septic Tanks questions, answered by experts

You should pump your septic tank once every two to four years for a family of four, depending on your septic tank size. You should pump a 1,000-gallon septic tank every two years, while a 1,500-gallon tank should be pumped every four years. Water usage also affects how often you should pump your septic tank. If you notice slow drains, foul smells, or gurgling sounds from your drains, you should pump your septic tank as soon as possible.

Digging a well can cost between $20 and $25,000, depending on your needs. If you’re looking to dig a well yourself, all you need is a shovel. If you’re looking to have a well drilled by a professional, you can expect to pay around $15 to $30 per foot. The total cost of drilling a well will average to $5,500.

A septic tank is an underground container that collects and holds wastewater until it’s sufficiently filtered and broken down. It treats wastewater by separating waste so the leftover liquid can travel into the drainfield where the soil and gravel eventually filter and purify it. This process naturally eliminates bacteria, viruses, and other contaminants.

The smallest septic system available for purchase typically includes a 750-gallon tank. However, the smallest size you can legally install is determined by local regulations, and many areas require a minimum capacity of 1,000 gallons. The cost to install a small septic system generally ranges from $2,910 to $13,900. Before proceeding, it is essential to check with your local health department or consult a local septic professional to confirm the minimum legal requirements in your area.

Septic distribution boxes, also called D-boxes, tend to last over 30 years if taken care of extremely well. In most cases, however, they tend to last anywhere from 15 years to 40 years. Regular cleaning and maintenance, as well as living in an area that doesn’t flood the tank or the system regularly, will all have an impact on the lifespan of the box.

The Troy, 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

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.
Scott Dylan Westerlund
•
Jul 9, 2026Jul 9, 2026
How Much Does It Cost to Pump a Septic Tank? [2026 Data]
Caring for your septic system is crucial to ensuring its long life. But how much does it cost to pump a septic tank? We explore the different cost factors.
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.