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*The Angi rating for Excavation companies in Los Alamos, NM 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 Los Alamos, NM 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 June 18, 2026

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MD Excavating
5.0(
14
)

Serving Los Alamos, NM and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"They fixed someone else’s problem and created a safe ground to walk on They went above and beyond to fix the problem from another contractor"
Additional Photos
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PAD PREP FOR NEW CONSTRUCTION
GRADING

+50

Response time2 days
7 neighbors recently requested a quote
Recommended by85%of homeowners
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Milligan Bros Services
New to Angi

Serving Los Alamos, NM and surrounding areas

In business since 2021

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!\n

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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. 

If you’re planning to dig on your property, you’ll need to check for underground utility lines. Call the national call-before-you-dig 811 number. Once connected to an operator, you can schedule a site visit to mark underground lines. This way, you won’t accidentally dig into pipes and can cause major (read: costly) issues.

You do not have to dig footers for a deck as long as it meets local code and holds up to weather in your area. If you live somewhere that experiences high winds and earthquakes, you may need to dig for your deck posts. Deck blocks, post anchors with base plates, and helical pile systems are the three no-dig deck post options you can choose from if local code permits.

Water lines are buried at various depths, depending on the type of line. For example, most sprinkler lines are buried between four and 12 inches underground. On the other hand, water mains usually sit between one and 3 feet below ground. However, they can go even deeper in cold climates to prevent freezing.

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. 

The Los Alamos, NM 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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