How long will a mound septic system last?

• <div><p>A mound septic system, when properly maintained, can last between 20 and 25 years on average—though some last longer or malfunction sooner than that. The most important part of maintenance is getting an annual <a href="https://www.angi.com/articles/what-is-a-septic-inspection.htm">inspection</a> of the vital parts of the system to ensure they’re in proper working order and not too backed up with sewage.</p></div>

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Q: How big should a drain field be for my home’s septic system?

• <div><p>The size of your septic tank plays a role in determining the proper size of the drain or leach field. As a general rule, you should have 1 square foot of drain field size per gallon of septic tank capacity. However, you could install a leach field that&rsquo;s as much as 2.5 square feet per gallon of septic tank capacity. Most professionals determine the <a href="https://www.angi.com/articles/how-big-is-septic-tank.htm">right septic tank size</a> and drain field size by the number of bedrooms in the house. A three-bedroom house needs a minimum 1,000-gallon septic tank, for example.</p></div>

Q: Who should I call for a septic smell in the house?

• <div><p>If you notice a septic smell in the house, you can either call a septic system repair company or a plumber. These professionals have the proper licenses and equipment to investigate the pipes and septic tank while keeping your family safe from sewage gas exposure and raw sewage leaks. They will be able to find the problem as soon as possible and get it fixed so that your home can get back to smelling fresh again.</p></div>

Q: What time of year is best for pumping or emptying a septic tank?

• <div><p>The best times of year to pump or empty a septic tank are spring and fall. Many professionals recommend spring because the ground has thawed, making the tank easier to access, and any snowmelt or rainfall can aid in proper drainage. Pumping before summer is also ideal to avoid conflicts with vacations or outdoor gatherings.</p><p>Fall is another great option, as contractors may be less busy than in the spring. Servicing the tank in late fall or early spring can also reduce the risk of overflow from extra precipitation during winter and spring.</p><p>While summer is a possibility, winter is generally not recommended. The ground is often frozen, which can make it difficult to access the tank, and the waste inside may also be frozen.</p></div>

Q: What does a full septic tank look like?

• <div><p>A septic tank always has some amount of liquid in it&mdash;which should usually be 8 to 12 inches from the top of the tank. If the liquid level is higher than that or is overflowing the drainage pipe that leads out to the leach field, the tank may be too full and in need of pumping.</p></div>

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Verified Reviews for Septic Tank Service pros in Hall, MT

*The Angi rating for Septic Tank Service companies in Hall, 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 Hall, 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 August 10, 2025

Reviewed in August 2025
Dan was absolutely the best. Worked 10 days straight. Set rock for our waterfall, retaining wall, tree planting, finish grading for lawn areas. Rock work included 70 tons of rock. Excellent equipment operator, careful, very courteous and attentive to our wishes. I have more for Dan to do in the...
Digger Dan Excavation and Landscaping, LLC
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Reviewed in April 2024
Our company C21 has worked with Bandy Appraisal for many years and have always had very prompt and professional service Very much recommend them.
Bandy Appraisal
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Reviewed in December 2023
Mark did a great job with project with good communication along the way. They picked up my new wood stove and delivered to my home and got it installed on schedule and without issue. I would recommend Orca to anyone looking for an install or help with a wood stove issue.
Orca Fireplace, LLC
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Reviewed in September 2022
Working with Tim and Tall Tines Contracting was an all around great experience. He was professional, polite and prompt. I would highly recommend Tim for any job!
Tall Tines Contracting
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Reviewed in June 2022
Jeremy Caira is amazing! This process was so painless and by the time Jeremy left our home we had every question and concern answered and eased. He walked us through every part of the process and is even helping us secure financing to replace a roof that will soon fail. Thank you Jeremy! We are...
DaBella - Missoula (Roofing)
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Reviewed in March 2022
He also installed a bathroom fan. Good job and affordable! I will use him again!
The North Pole Handyman
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Reviewed in December 2021
Job was completed ahead of schedule, looks good and performs well. Couldn't be happier, I highly recommend.
Lewistown Sprayfoam and Insulation
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Reviewed in July 2021
She was very good and I am very happy with her work. My only concern is she should have someone to help her to the job. The house is big for 1 person to the cleaning. I paid the service and I need to mop my kitchen floor because she can't do it alone.
HomeAdvisor
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Reviewed in September 2020
Service was great, from start to end. Workers are great. More next year.
Renewal by Andersen of Montana
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Reviewed in July 2020
Sean responded promptly, kept me informed and reported results in a timely manner
Montucky Home Inspections, LLC
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Find Septic tank pros in Hall

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

Serving Hall, 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 Hall, 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."

Recommended by65%of homeowners

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JW Excavation & Septic, LLC

New to Angi

Septic System - Install or ReplaceSeptic System - Repair

Serving Hall, 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.

Response time1 hour

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KMD Construction LLC

New to Angi

Septic System - Install or ReplaceSeptic System - Repair

Serving Hall, MT and surrounding areas

Free estimates

Emergency services offered

Small jobs welcome

We are an excavation/concrete company we do septic tanks, sidewalks, driveways, landscaping, demolition, and fencing. We are here for all your needs. Give us a call at 406-465-7954 for a free quote

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Scenic Excavation

New to Angi

Septic System - Repair

Serving Hall, MT and surrounding areas

In business since 2019

Free estimates

Scenic Excavation takes great pride in our experience, expertise, quality and customer service. 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.

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Septic Tanks questions, answered by experts

The size of your septic tank plays a role in determining the proper size of the drain or leach field. As a general rule, you should have 1 square foot of drain field size per gallon of septic tank capacity. However, you could install a leach field that’s as much as 2.5 square feet per gallon of septic tank capacity. Most professionals determine the right septic tank size and drain field size by the number of bedrooms in the house. A three-bedroom house needs a minimum 1,000-gallon septic tank, for example.

If you notice a septic smell in the house, you can either call a septic system repair company or a plumber. These professionals have the proper licenses and equipment to investigate the pipes and septic tank while keeping your family safe from sewage gas exposure and raw sewage leaks. They will be able to find the problem as soon as possible and get it fixed so that your home can get back to smelling fresh again.

The best times of year to pump or empty a septic tank are spring and fall. Many professionals recommend spring because the ground has thawed, making the tank easier to access, and any snowmelt or rainfall can aid in proper drainage. Pumping before summer is also ideal to avoid conflicts with vacations or outdoor gatherings.

Fall is another great option, as contractors may be less busy than in the spring. Servicing the tank in late fall or early spring can also reduce the risk of overflow from extra precipitation during winter and spring.

While summer is a possibility, winter is generally not recommended. The ground is often frozen, which can make it difficult to access the tank, and the waste inside may also be frozen.

A mound septic system, when properly maintained, can last between 20 and 25 years on average—though some last longer or malfunction sooner than that. The most important part of maintenance is getting an annual inspection of the vital parts of the system to ensure they’re in proper working order and not too backed up with sewage.

A septic tank always has some amount of liquid in it—which should usually be 8 to 12 inches from the top of the tank. If the liquid level is higher than that or is overflowing the drainage pipe that leads out to the leach field, the tank may be too full and in need of pumping.

The Hall, 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

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