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TRUSTED BY CORVALLIS, MT HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon10
    Verified septic tank services reviews

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

Avatar for White River Excavation, LLC
White River Excavation, LLC
5.0(
9
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Corvallis, MT and surrounding areas

In business since 2014

Free estimates

Emergency services offered

We provide professionalism and quality workmanship that only comes from years of experience and a passion for this industry. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n\nCall us today you'll be pleased you did. Thank you!\n

Cutting in New Road
Final Grade
Parking Pad
Prep for Block Wall
Concrete Demolition

+9

Response time2 days
Avatar for Bitterroot Valley Septic, LLC
Bitterroot Valley Septic, LLC
5.0(
1
)
Septic System - Repair

Serving Corvallis, MT and surrounding areas

In business since 2021

Free estimates

Emergency services offered

At Bitterroot Valley Septic LLC, we are a local family-owned septic pumping business that not only serves you as a customer but as a friend. We are happy to be your local septic pumping service provider in the Ravalli County of Montana. With over 10 years of experience in the septic business, we strive to provide you with excellent customer support while offering you competitive pricing on our services. We provide a variety of services from standard septic pumping and cleaning, to unclogging clogged sewer pipes, scoping lines to check for problems, excavating and repairing broken and sagging pipes, and also installing replacement septic systems. We also repair or replace septic effluent and sewage lift pumps. \n \n

Drainfield during installation
Drainfield area
After The Sod Was Replaced
Routine Pumping Service-
Routine Pumping Service-

+6

Response time5 hrs
Response rate100%
Bitterroot Septic Installers LLC
5.0(
1
)
Septic System - Install or Replace

Serving Corvallis, MT and surrounding areas

In business since 2019

Free estimates

Offers commercial services

"Contacted Anthony and explained the problem I was having and he offered to come by and check to see if the septic was full or if it was a blocked pipe. When he arrived he accessed the tank and found the pipe into the tank was blocked. He corrected the issue and the pipe started flowing again. He had just finished a job and was on the way to another. I asked to be put on the list to have my tank pumped and he stated he would just do it now while already here. He completed the task quickly and was very reasonable on the price. Will continue to use his company for related issues. AJ"
Response time20 mins
Recommended by100%of homeowners
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 Corvallis, MT and surrounding areas

In business since 1971

Credit card accepted

"I just pay $75 you never know who's going to come out. They do everything electrical. Just about everything is covered except the septic tank. I had an air conditioner replaced. It went great, all I had to do was pay for the freon. He didn't charge e more than what was needed."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Precision Construction Services, LLC
4.8(
4
)
Septic System - RepairSeptic System - Repair - For Business

Serving Corvallis, MT and surrounding areas

In business since 2019

Free estimates

Offers commercial services

PPM Network is dedicated to providing our customers with the best quality service. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

Before
After
After
Response time2 days
Recommended by100%of homeowners
Avatar for L4Groundworks LLC
L4Groundworks LLC
New to Angi
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Corvallis, MT and surrounding areas

In business since 2018

Free estimates

We are 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.

Response time1 day
Avatar for JW Excavation & Septic, LLC
JW Excavation & Septic, LLC
New to Angi
Septic System - Install or ReplaceSeptic System - Repair

Serving Corvallis, MT and surrounding areas

In business since 2023

Free estimates

Offers commercial services

Welcome to JW Excavation & Septic, LLC! In business since 2023, we are a full service excavating company who takes great pride in the quality of our work and guarantees customer satisfaction. We specialize in our services for all residential properties, and no job is too big or too small. Serving Pinesdale and its surrounding areas, be sure to give us a call today! We offer free estimates.

Daylight basement and crawl space
Storage facility
Storage facility
Finished excavation
Finished excavation

+4

Response time1 hour
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Septic Tanks FAQs, answered by experts

The ideal depth of a septic drain field is 18 to 36 inches below the surface. The trenches must be deep enough to allow proper wastewater distribution and filtration while remaining shallow enough for oxygen to reach the soil, promoting bacterial activity that helps break down contaminants. In areas with high groundwater or poor drainage, shallower systems like mound drain fields may be required.

An outdoor water valve typically has a round or oval handle that you can turn to control the water flow. It may be located in a protective box or pit near the property line, where the main water line connects to your house.

Good news: You’ll naturally increase the bacteria in your septic tank simply by using it. If you want to encourage more good bacteria growth, stop using products and household cleaners that kill bacteria, such as bleach and harsh chemicals. Never flush antibiotics, and make sure only water and waste go down the tube—not paper products, feminine hygiene products, or diapers.

They can if they’re not installed correctly or if the caps or covers were dislodged by a lawn mower or other yard equipment. This is why it pays to hire a reputable septic tank company that’s experienced in septic tank installation and maintenance. You should also check caps and covers often to see that they’re in place and take measures to tighten or secure them, provided it is safe to do so.

The best way to keep a septic tank clean is to hire a local septic tank cleaner to inspect and pump the septic tank every three to five years. Be sure to only flush human waste and toilet paper down the toilet, and don’t pour grease, oil, fats, coffee grounds, or food scraps into your drains.

The Corvallis, MT homeowners’ guide to septic tank services

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