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Verified Reviews for Septic Tank Service pros in Mandan, ND

*The Angi rating for Septic Tank Service companies in Mandan, ND 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 Mandan, ND 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 14, 2025

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DB Plumbing and Service LLC
4.8(
2
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Repair - For Business

Serving Mandan, ND and surrounding areas

In business since 2021

Free estimates

Warranties offered

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at DB Plumbing and Service strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

Response time2 days
Recommended by100%of homeowners
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Avatar for American Home Shield – Home Warranty
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 Mandan, ND and surrounding areas

In business since 1971

Credit card accepted

"The technician emptied the freezer, which was in the basement, to work on the part that needed repair. Then he neglected to put anything back into the freezer, including a turkey I had bought for Christmas and a rack of ribs. Two days after he left, I went out of town for two weeks. The turkey actually exploded and spewed its liquid all over everything, which had to be discarded. I let AHS know and they couldn't even bother to call me or follow up on this. I'm considering not renewing my contract with them because of the quality (or lack thereof) of many of the providers they send."
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+2

Recommended by65%of homeowners
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Helm Excavating, Inc.
New to Angi
Septic System - Install or Replace

Serving Mandan, ND and surrounding areas

In business since 2020

Free estimates

Offers commercial services

With over 40 years of experience in the Excavation industry, Helm Excavating INC is your industry expert in Bismarck and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

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W. Simpson Plumbing Services, LLC
New to Angi
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Mandan, ND and surrounding areas

In business since 2012

Free estimates

Credit card accepted

Here at W. Simpson Plumbing Services, LLC, we are a full service plumbing company for both residential and commercial. We are local, family owned and operated, and have a strong focus on customer service. We are fully licensed and ready to take on as much work as possible. Call us today for your free estimate. We look forward to meeting your home's needs.

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Avatar for Bismarck-Septic-Excavating
Bismarck-Septic-Excavating
New to Angi
Septic System - Install or ReplaceSeptic System - Repair

Serving Mandan, ND and surrounding areas

In business since 2010

Free estimates

Offers commercial services

Bismarck-Septic-Excavating is 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.

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Septic Tanks questions, answered by experts

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.

French drains, sump pumps, and exterior waterproofing systems are common options. Choose one that best suits your property’s needs.

A household of four can easily fill a 1,000-gallon septic tank within a week. It may be 10 to 14 days for smaller households. But the reason why you don't need weekly pumping is because the tank's contents eventually reach the overflow pipe. They flow down this pipe to the absorption area whenever water is used in your home. The tank keeps working at this full level until it's pumped again.

How to size a well pressure tank is determined by three factors: flow rate, or how many gallons per minute your well pump produces; minimum runtime; and pressure switch setting. Most pressure tanks have a pressure switch operating at 20/40, 30/50, and 40/60—the first number is the pressure needed for the pump to turn on, and the second number is the pressure needed for the pump to switch off. Most homeowners relying on well water require a water pressure tank ranging from 20 to 80 gallons. 

If you notice that your well pump runs continuously, it’s important to take action quickly to avoid further damage. A few common issues may be to blame for a continuously running well pump, such as mechanical damage, a faulty pressure control switch, low water level, prime loss, and leaking pipes and fixtures.

The Mandan, ND 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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