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Top-Rated Excavation pros in Prosser - Updated Nov 2026

3H Excavation
5.0(
2
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Prosser, WA and surrounding areas

In business since 2012

Offers commercial services

"Darren did an excellent job . Arrived in a timely manner, explained options and then got to work. He came back the next day to clear the snow that had continued to fall . I would recommend him."
Response time1 day
Recommended by100%of homeowners
Avatar for KT'S Construction Services, LLC
KT'S Construction Services, LLC
4.2(
13
)
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Prosser, WA and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"We hired Dave to do a entire Kitchen makeover. Dave is the most professional contractor we have worked with. Dave was extremely through, looking out for our interest with subs he hired. Dave receptive to our ideas and worked to facilitate our requests. Our appliance dealer commented that Dave was the most hands on contractor they had meet. We have additional projects coming up in the future and plan to use Dave Laube as our contractor. We recommend anyone planning a remodeling project, talk with Dave Laube to see what he could do for them."
Response time4 hrs
Recommended by91%of homeowners
Cobian Excavation LLC
5.0(
4
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For BusinessLandscape - Minor Grading or Resloping

Serving Prosser, WA and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"I recently hired Cobian Excavation for a significant excavation project, and I couldn't be more satisfied with their service. From the initial consultation to the final clean-up, their professionalism, efficiency, and expertise were evident every step of the way. The team was punctual, well-equipped, and highly skilled, completing the project on time and within budget. They navigated unexpected challenges with ease, demonstrating their extensive experience in the field. Communication was clear and consistent, ensuring I was informed and confident throughout the process. The quality of their work exceeded my expectations, and their attention to detail ensured a flawless result. I highly recommend Cobian Excavation for any excavation needsâ they truly deliver outstanding service and results."
Response time1 day
Recommended by100%of homeowners
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Excavating FAQs, 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. 

In the United States, a depth of 36 inches (three feet) for underground water lines is the accepted industry standard. This depth varies from location to location based on local conditions. In areas with colder winters, they may be buried deeper to prevent frozen well water pipes : This is usually at least six inches below the frost level. The International Plumbing Code calls for a minimum of 12 inches below grade.

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. 

Trenching and boring are two distinct methods for installing underground utilities. Trenching involves digging a channel using equipment like an excavator, trencher, backhoe, or shovel. While it is a simpler process, it causes significant disruption to the surface, landscaping, and surrounding ecosystems.

Boring, also known as directional boring, is a less invasive alternative that uses a drill to create a tunnel for utility lines without disturbing the surface. This method is more precise and is ideal for installations that need to go underneath buildings, roads, or bodies of water. Although boring is less disruptive, it is generally more expensive than trenching.

Call 811 to locate and mark the gas lines at least three days before digging. In many areas, you can dig within 18 inches of the lines, though in some locations, the distance may be further. Check local regulations, as you may need a utility company representative onsite when digging. Document your calls to 811 and precautions taken to avoid gas lines. A homeowner can be held liable for hitting a gas line in some cases, but contacting the proper authorities and following all guidelines can offer protection.

The Prosser, WA homeowners’ guide to excavation services

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