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*The Angi rating for Excavation companies in Riverdale, 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 Riverdale, 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 February 26, 2026

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Avatar for Quinones Landscape & Tree Service
Quinones Landscape & Tree Service
4.8(
70
)

Serving Riverdale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Credit card accepted

"Tony showed on time and did a very good job with removing 3 trees and stump removals. Left site very clean. We are very pleased with their work."
Response time12 hrs
Response rate87%
149 neighbors recently requested a quote
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Avatar for Wilber Construction, Inc.
Wilber Construction, Inc.
5.0(
9
)

Serving Riverdale, CA and surrounding areas

In business since 2003

Free estimates

Offers commercial services

"Fantastic work, Honest, reliable, easy to work with. Family built and run business. I won t use anyone else. Highly recommend!!!"
Response time2 days
Recommended by33%of homeowners
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Dambacher Construction Inc
5.0(
1
)

Serving Riverdale, CA and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"I've had work done many years ago, where the work done by people that were not as professional as Jimmy would only last a few years - all the work he has done has been fabulous, reasonable in price. The work up here has to be done in a special way, and his has been fantastic with how long it has lasted. I am very happy, he has done some special things for us to get the prices as low as possible. If we had somebody else do it, it would probably cost twice as much."
Response time2 days
Recommended by100%of homeowners
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Avatar for Supreme Green LLC.
Supreme Green LLC.
3.1(
16
)

Serving Riverdale, CA and surrounding areas

In business since 2016

Free estimates

Small jobs welcome

"Needed attic cleaned-past rodent issue. Young man did outstanding work in short time. Would definitely utilize his services again. Good job!"
Response time3 days
Recommended by81%of homeowners
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Excavating questions, answered by experts

In most areas, you will need a permit for excavation work, even for projects that only involve grading or yard leveling. Permit requirements depend on your local government and the scope of the project, but they are especially common for significant digging or work that could affect utilities or public property. These permits help protect the local topography and prevent drainage issues. An experienced excavation company will typically know whether permits are needed and can often handle the process of pulling and closing them for you. You can also verify permit requirements by contacting your local building department and describing your project.

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.

Yes. A metal detector is one of the quickest and easiest ways to find your septic tank. However, metal detectors can be too expensive (costing upward of $300 in some cases), and not everyone has a metal detector just lying around. If that’s the case for you, you can also take a long metal rod and poke it into the ground at regular intervals until you hit something—likely your septic tank lid.

To locate an underground downspout, you should start by identifying where the above ground gutter drains. Look for an entry point, such as a pipe or elbow leading into the ground. Follow the surface path for signs like depressions, landscaping disruptions, or wet areas after rain. You can use a metal detector or plumber’s snake to trace the pipe underground. For deeper pipes, a professional locator tool or camera inspection may be necessary. Visual markers or utility maps can also guide the search.

There are many ways to cut through roots when digging, especially if your trencher doesn’t seem to be removing the roots. First, use a shovel to expose the roots. Then, use gardening shears to clear out smaller roots or a reciprocating saw to remove larger plant roots. If you plan on keeping the plant, avoid cutting any roots over 2 inches thick.

The Riverdale, CA homeowners’ guide to excavation services

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