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

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Last update on February 24, 2026

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Avatar for Lewis & Sons Excavating
Lewis & Sons Excavating
5.0(
4
)

Serving Carrollton, MO and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"Nathan did a great job! I was called out of town so only able to explain what I needed done over the phone. I am very picky about how I want things completed -- I was pleasantly surprised when I came home to find everything done perfectly! Nathan showed up when he said he would, confirmed what I was asking and completed the work within the time frame we discussed, for the price he quoted! I have more work of the same that will need done in the Spring. I will be calling Lewis & Sons to handle the job!"
Land clearing
Basement with walkout
Excavating Project
High profile demo in the middle of town , I removed structure hauled off and put back to grade for the next building pad
Land clearing

+28

Recommended by100%of homeowners
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Excavating questions, answered by experts

How deep your septic system needs to be into the ground depends on several factors. In extremely cold environments, the tank needs to rest below the maximum frost line, which can be up to six or eight feet deep. The standard burying depth for most systems is between a few inches and four feet below ground level. Depth can also depend on the slope of the landscaping and other property variables. 

A walk-behind trencher can cut through roots as long as they’re not too thick, making a project much easier than digging with a shovel and other hand tools. Assess your terrain and the number of trees in the surrounding area to determine if a walk-behind trencher will ease the job. Digging a trench by hand is much more time-consuming and labor-intensive. 

Some two-in-one tools and machines do both jobs, and those could be the right solution for smaller residential projects. However, the phrase “use the right tool for the job” definitely applies to digging. For the best results, get two separate tools for your trenching and landscape edging projects or call a pro to take care of everything for you.

Trenches are typically 12 to 24 inches deep and 8 inches wide. However, the required depth depends on the specific project and local ordinances. For example, a French drain may need to be 18 inches deep, while a water pipe might require a depth of 24 inches and a drainage pipe 36 inches. Your city or county may have specific regulations, so it's wise to consult with an excavation professional to determine the correct depth for your project.

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 Carrollton, MO 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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