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*The Angi rating for Excavation companies in Jamestown, CA 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 Jamestown, CA 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 30, 2026

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Avatar for Fender Construction, Inc.
Fender Construction, Inc.
4.3(
10
)

Serving Jamestown, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Shannon Fender was a pleasure to work with. His experience and understanding of the project made everything come out amazing."
Response time6 days
1 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for Ultimate Concrete
Ultimate Concrete
4.6(
55
)

Serving Jamestown, CA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Dan came out right away and gave an estimate on replacing our 2 car driveway. We decided to expand the side yard to make a 4 car driveway, and he accommodated the day of the start of work. Gave us an awesome price! He and his son were here 3 days, and finished everything. They are clean, professional and friendly. I would recommend Ultimate Concrete to anyone! They do other types of work as well. Thank you Dan!"
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+5

Recommended by100%of homeowners
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Excavating questions, answered by experts

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 perc test can take anywhere from one to eight hours to complete. The total time depends on factors like the amount of excavation required, the depth and width of the holes, and whether multiple test holes are needed. For a single hole, the process of filling it with water and monitoring the drainage rate usually takes less than an hour. Professionals can often complete the entire test in a single day. While it's possible to get results the same day, some companies may take a few days to provide the official report.

A trench that is less than 5 feet deep often doesn't require a protective system. Most residential trenches will not go this deep (the typical residential drainage trench is just 18 inches deep). In the event that an excavator needs to dig more than 5 feet beneath the surface, a protective system is required unless the excavation is in entirely stable rock.

Sewer lines can be buried anywhere from 18 inches to 8 feet deep, with a common average depth between 18 and 30 inches. The exact depth depends on local factors like climate and soil type. In colder regions, pipes must be buried deeper (below the frost line) to prevent freezing, sometimes as deep as 8 feet. The digging depth can also impact the cost of sewer line replacement. To find the specific depth for your property, you can check the building plans for your system, which should be on file with your city or local sanitation department since permits are required for installation.

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.

The Jamestown, CA 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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