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Top-Rated Excavation pros in Nanjemoy - Updated Nov 2026

R.K. Boswell Septic & Excavating
3.9(
106
)
Building Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping - For Business

Serving Nanjemoy, MD and surrounding areas

In business since 2001

Free estimates

Offers commercial services

"RK Boswell and Septic and Excavating is an awesome company. The only reason we did not hire them is because we did not have a septic pump we have an electric pump. We are new to living in a rural area and was not sure what we had. They came out, look over our system and told us exactly what we could do at no cost. Their customer service is awesome. If someone does this for us without securing a contract, I think you can trust them with the septic projects that you have."
Response time40 mins
Response rate100%
Recommended by84%of homeowners
Avatar for 7247 plumbing
7247 plumbing
4.6(
19
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Nanjemoy, MD and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Mr. Lee was easy to work with. He knew exactly what was needed to get the job done after looking at what he was working with. I needed to have a new shower drain and 2 inch PVC pipe installed after I removed the previous 15 year old leaking drain. I knew the next steps needed to be done by a professional. Glad to have found him and his expertise. I would definitely recommend this service."
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Recommended by100%of homeowners
Avatar for Kelly Plumbing & Heating
Kelly Plumbing & Heating
4.5(
84
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Nanjemoy, MD and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Kelly was very responsive and fixed the problem right away. I have a rental property, and Kelly was able to perform the work without me being there. Kelly sent me photos of what they found in the drain, and they emailed me the work order & invoice. I will use them again in the future if I have a plumbing need!"
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+2

Recommended by89%of homeowners
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Excavating FAQs, answered by experts

Hard soil could be a sign of overly dry dirt, either from poor drainage or drought. It's important to test the nutrient levels, density, and drainage capacity of your soil to see if it's absorbing water properly. Begin by adding a light layer of water and observing how long the soil retains moisture. If you experience a good deal of runoff, you may need to aerate your lawn, apply a wetting agent, or hire a professional for a closer look.

The average cost of excavation is approximately $3,200, with typical projects ranging from $500 to $15,000. Depending on the contractor, you may be charged between $50 and $200 per cubic yard or an hourly rate of $40 to $180 for an excavation specialist. The total cost is influenced by several factors, including the project size, the amount of soil to be removed, and the soil's condition. Hard soil, tree roots, or excessive rocks and clay can increase the price, potentially adding $200 to $1,200 to the final bill. Other factors that can drive up costs include the presence of nearby structures that complicate the work or tight spaces that require manual excavation instead of heavy machinery.

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.

The best method for digging a trench depends on the scope of the project. For a short, shallow trench (less than 2 feet deep) in light, soft soil, digging by hand may be sufficient. However, digging by hand is labor-intensive, so consider the effort required. A machine trencher is the better option for longer trenches (over 100 feet), deeper ones, or when dealing with difficult soil conditions, such as rocky or hard ground, or obstructions like tree roots. A machine can save significant time and energy in these situations.

If you don’t have a crawl space but have a partial basement you want to make deeper, you can expect to spend a little less—between $40,000 and $90,000 on average. However, if you’re not adding new finished square footage, you won’t see much in the way of ROI.

The Nanjemoy, MD homeowners’ guide to excavation services

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