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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

On average, septic systems last between 15 and 20 years. However, with proper care and routine septic maintenance, you may be able to extend your septic system’s life span to 30 years (or more). Some ways to keep your system in tip-top shape include scheduling a professional inspection every two to five years and reducing the flow of wastewater into your system.

You may notice a septic smell in your yard after it rains if groundwater is entering your septic tank and causing it to overflow. If you experience septic odors after rainfall, contact a licensed plumber. They can construct a drain to redirect rainwater away from your septic tank. 

Yes, a septic tank can get full. If this happens, you might run into issues flushing your toilets or draining your sinks. You may also notice your pipes making gurgling noises or the smell of sewage floating around your house. Other signs of a backed-up septic tank include water pooling or fresh, healthy grass growing above your drain field.

Deciding between an engineered septic system and a conventional one depends on property size, soil quality, local regulations, and environmental factors. If your property has limited space, poor soil, or is close to sensitive environmental features, an engineered system may be required. Professional site evaluations, considering water usage, long-term plans, and budget constraints, can help determine the appropriate choice. Consulting with a septic system professional is crucial for ensuring compliance with regulations and selecting the best system for your property's unique needs.

Yes, it is possible to pump a septic tank too frequently. The ideal pumping schedule varies based on the tank's capacity, household size, and water usage. Pumping the septic tank more often than recommended can cause the beneficial bacteria to leach into the drain field, leading to an imbalance and a build-up of solid waste.

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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