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

Avatar for Dynamic Plumbing LLC
Dynamic Plumbing LLC
5.0(
12
)
Septic System - Repair

Serving Marion, 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.

Boiler installation
Boiler installation
Boiler installation
Boiler installation
26 neighbors recently requested a quote
Western Earthworks
4.3(
4
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Marion, 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
Advanced Septic Design & Maintenance, LLC
New to Angi
Septic System - Repair

Serving Marion, MT and surrounding areas

In business since 2014

Free estimates

Emergency services offered

At Advanced Septic Design & Maintenance, we take great pride in 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. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

Response time1 day
DAIRYLAND DIRTWORKS LLC
5.0(
1
)
Septic System - RepairSeptic System - Repair - For Business

Serving Marion, MT and surrounding areas

In business since 2020

Free estimates

Dairyland MX is committed to excellence in every aspect of our business. We uphold a \nstandard of integrity bound by fairness, honesty and personal responsibility. Our distinction is \nthe quality of service we bring to our customers. Accurate knowledge of our trade combined \nwith ability is what makes us true professionals. Above all, we are watchful of our customer's \ninterests, and make their concerns the basis of our business.

Response time6 hrs
Recommended by100%of homeowners
RKO Excavation
New to Angi
Septic System - Install or Replace

Serving Marion, 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.

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 Marion, 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
Septic Tanks FAQs, answered by experts

How do you set your well’s pressure tank? All you need to do is first drain the tank of water and find the pressure switch. Remove the switch cover and adjust the switch with a wrench—clockwise to increase water pressure, and counter-clockwise to reduce it. Each complete turn of the nut on the switch should equal 2.5 psi. Once this is done, replace the switch cover. All that’s left is to adjust the pressure of the tank itself using an air compressor and a tire gauge to support the new setting.

The septic installation company must follow several steps to put in a new septic system and leach field. The installer will study your property and determine the best place for the tank and leach field. The site should be away from existing structures, be free of trees, and have proper drainage and grading. Preparing the site for the tank and leach field will require significant excavation work.

With regular servicing and general upkeep, both a well pump and pressure tank can last for years. The average lifespan of a well pump is around eight to 15 years. A well pressure tank can last from seven to 10 years. How long a well pump and pressure tank lasts also depends on a variety of factors such as type, size, material, and brand.

A cistern works by collecting rainwater from your gutters and downspouts and storing it in a holding tank. The holding tank can be installed above or below ground, and the size will depend on your household needs. The stored water can then be used for household tasks, watering your garden, and even for drinking water.

A submersible pump should be at least 10 feet from the bottom of the well to minimize the risk of the pump drawing debris into the well water. Submersible pumps work best for wells that are 25 feet deep or less. If you have a deeper well, choose a jet pump instead of a submersible model.

The Marion, MT homeowners’ guide to septic tank services

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