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*The Angi rating for Excavation companies in Mandan, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

*The HomeAdvisor rating for Excavation companies in Mandan, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

Last update on May 27, 2025

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Avatar for Bismarck-Septic-Excavating
Bismarck-Septic-Excavating
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

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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Quality Trenching Services, LLC
New to Angi
Excavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Mandan, ND and surrounding areas

In business since 2012

Free estimates

Quality Trenching Services, LLC, is owned and operated by Jason Parsons. I have over 15 years experience in electrical and trenching projects. I started the company to help out the rural communities with my services. Knowing customer satisfaction is how business's succeed, I'll provide 100% customer satisfaction which is my number 1 priority.

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All Phases Construction
New to Angi
Landscape - Minor Grading or Resloping

Serving Mandan, ND and surrounding areas

In business since 1980

Free estimates

All Phases Construction is a full service contractor capable of handling all your residential and commercial construction projects. All Phases Construction focuses on the customer needs, and expectations to ensure your project is completed on time and satisfactorily. Customer service, quality products and craftsmanship is all you can expect from All Phases Construction. Call us today!

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Edinger Landscaping, LLC
New to Angi
Landscape - Minor Grading or Resloping

Serving Mandan, ND and surrounding areas

In business since 2020

Free estimates

We pride our company on Reliability, Great Communication, Integrity, and Quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business!

Response time2 days
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Excavating questions, answered by experts

It takes one hour to dig a 10-foot trench by hand. Use a trenching shovel with a sharp tip and a long head. Plan for more time if your soil is heavy or rocky. Consider renting a trencher if you’re digging a long or deep trench or if you have challenging soil or terrain. 

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

Because decomposed granite is a durable material, a crushed rock or gravel base is optional as long as the DG is properly installed and compacted. However, installing a base is a good idea because it will ensure proper drainage and stability and act as a weed suppressant (although you may still occasionally have to pull weeds). Installing an adequate base can also increase the durability of driveways and walkways. If you forego the paver base or gravel underneath, line the area with landscaping fabric to avoid weeds.

Directional drilling is complex and requires training to use the advanced machinery. It can be challenging to monitor the position of the drill since there’s no direct line of sight. Directional drilling can also be more expensive with a cost of $10 to $30 per linear foot compared to $5 to $12 per linear foot for trenching. 

The cost to repair a crawl space runs between $1,500 and $15,000, depending on the extent of the damage. Major flooding or water repairs can cost up to $10,000 for removal and repairs. If you simply need to clean your crawl space, expect to pay between $2,000 and $6,000 for a major cleanout. Replacing a crawl space beam due to rot or damage can cost between $1,500 and $5,000, while removing and replacing damaged insulation costs between $1,000 and $4,000.

The Mandan, ND homeowners’ guide to excavation services

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

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