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Best septic tank pros near Lakeside, MT

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

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

Serving Lakeside, 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
25 neighbors recently requested a quote
Avatar for Rocking MT Excavation LLC
Rocking MT Excavation LLC
5.0(
6
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Lakeside, MT and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"We hired Rocking MT to replace the holding tank on our septic system. Stephen did an excellent job. He is a very skilled contractor who worked through several obstacles while communicating with us all along the way. The quality of his work was outstanding. He left the job site very clean. I would contract with him again in a heartbeat. His quote was reasonable and the final price was very close to what he quoted."
General
Gold Mine
General
General
General

+54

Response time1 day
Response rate87%
Recommended by100%of homeowners
Avatar for T5 Services, LLC
T5 Services, LLC
4.3(
43
)
Septic System - Install or Replace

Serving Lakeside, MT and surrounding areas

In business since 2018

Free estimates

Small jobs welcome

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.

T5 Gravel LLC
T5 Gravel LLC
T5 Gravel LLC
T5 Gravel LLC
T5 Gravel LLC

+26

Response time1 day
Recommended by94%of homeowners
Western Earthworks
4.3(
4
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

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

Serving Lakeside, 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
Weaver Excavation & Septic, Inc.
5.0(
1
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Lakeside, MT and surrounding areas

In business since 2012

Free estimates

Credit card accepted

At Weaver Excavating & Septic, Inc.,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 \n

Response time5 hrs
Recommended by100%of homeowners
DAIRYLAND DIRTWORKS LLC
5.0(
1
)
Septic System - RepairSeptic System - Repair - For Business

Serving Lakeside, 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
Showing 1-10 of 12
Septic Tanks FAQs, answered by experts

The efficacy of a drain field depends on a wide variety of factors, though a well-maintained one can last as long as 40 or 50 years. Of the different types of septic tanks on the market, concrete and plastic tanks tend to last the longest—upwards of 40 years if they’re pumped regularly—while steel tanks have a tendency to rust over time and may need to be replaced after 15 or 20 years.

Yes, shower water goes into the septic tank. Shower water is a type of greywater, and in fact, all water used in a home with a septic system—including water from sinks, toilets, the dishwasher, and the washing machine—drains into the tank. When shower water enters the tank, debris like soap and hair travels with it. The solid debris sinks to the bottom to become sludge, while soap residue joins the scum layer at the top. The remaining water is treated in the tank before moving to the drain field for further treatment and dispersal. It is important to avoid putting oil or harsh chemicals down any drain, as they can cause clogs or disrupt the beneficial bacteria required for proper wastewater management in the septic system.

A septic system can fail for various reasons, and most commonly, excessive water use or sudden surges in wastewater can overwhelm the system's capacity. Neglecting regular maintenance, like tank pumping and inspections, can also lead to clogs, leaks, and eventual breakdowns. Other issues that lead to failure include age-related wear and tear, root infiltration, improper disposal of non-biodegradable materials or chemicals into the system, unsuitable soil conditions, physical damage, and even environmental factors like flooding or soil erosion.

Soda, coffee, and other soft drinks are highly acidic. This affects the pH in septic tanks, causing them to require more frequent pumping. However, a vast majority of people don't need to worry about septic system disruption. Pouring out the occasional flat soda doesn’t affect septic systems to the same degree as the high-volume dumping from restaurants and convenience stores.

Pump the tank every 3-5 years, avoid flushing non-degradable items, and address leaks promptly to extend system life.

The Lakeside, MT homeowners’ guide to septic tank services

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