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Verified Reviews for Septic Tank Service pros in Plains, MT

*The Angi rating for Septic Tank Service companies in Plains, 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 Plains, 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 April 04, 2025

Top-Rated Septic tank pros in Plains - Updated Nov 2026

Avatar for Granite Creek Construction, LLC
Granite Creek Construction, LLC
5.0(
3
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair

Serving Plains, MT and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

Granite Creek Construction LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

Karst
Donna
Driveway Grading
Marten Creek
Waterline Excavation

+4

Response time11 hrs
Response rate86%
1 neighbors recently requested a quote
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Western Earthworks
4.3(
4
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Plains, MT and surrounding areas

In business since 2020

Free estimates

Credit card accepted

Western Earthworks, proudly serves our customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that set us apart from the rest. We are locally owned and operated.

Response time1 day
Recommended by75%of homeowners
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Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,680
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Plains, 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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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Plains, 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."
Additional Photos
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+2

Recommended by65%of homeowners
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RKO Excavation
New to Angi
Septic System - Install or Replace

Serving Plains, 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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Avatar for Mountaintop Enterprises, LLC
Mountaintop Enterprises, LLC
2.5(
2
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Plains, 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!

Prepping to extend concrete pad
Concrete Pad Extended
New extended porch frame
Installing Lighting & Ceiling
Progress on Porch

+12

Response time1 day
Recommended by50%of homeowners
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Septic Tanks FAQs, answered by experts

There are three layers of wastewater in a septic tank: scum (solid waste that floats to the top of the wastewater), liquid (the relatively clean liquid wastewater in between the two other layers), and sludge (solid waste that falls to the bottom of the wastewater). The buildup of sludge is one of the main reasons septic tanks need to be pumped. If the tank is more than 1/3 of the way full with a combination of sludge and scum, it’s time to call a pro for pumping.

Common signs that your well pump is failing include fluctuating or consistently poor water pressure, sputtering water from faucets, or a complete loss of water. Other indicators are unusual noises coming from the pump, the pump running continuously, dirty or cloudy water, or a sudden, unexplained spike in your utility bills. While some issues, especially after a power outage, might be resolved by simply restarting the power or priming the pump, persistent problems suggest a more serious issue. If you notice any of these red flags, it is recommended to call a professional well pump service to inspect the system and determine whether it needs to be repaired or replaced.

While mound septic systems can provide cost-effective wastewater treatment in many instances, they do come at a significant initial installation cost and require a lot of space on your property for the mound and its replacement field. The installation cost is so high because this is a project that requires an exceptional level of skills and expertise to execute properly.

Septic tanks aren’t bad for the environment as long as they receive proper maintenance and attention. This means staying up-to-date with professional septic system inspections and septic tank pumping. Without regular maintenance, parts of the septic system could break or stop working, potentially letting harmful waste into the soil and groundwater.

The dimensions of a 500-gallon concrete septic tank can vary from manufacturer to manufacturer, but the tank is large enough to handle the wastewater of a small home with up to one bedroom. Keep in mind that some states have a minimum septic tank size, and this often starts at 750 gallons. A 500-gallon septic tank may be too small to meet local regulations.

The Plains, MT homeowners’ guide to septic tank services

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

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