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Verified Reviews for Excavation pros in Lewiston, CA

*The Angi rating for Excavation companies in Lewiston, 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 Lewiston, 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 April 20, 2026

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Kelley Excavation
4.7(
16
)

Serving Lewiston, CA and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"Really easy to communicate with. Was able to come give an estimate and schedule work right away, which is amazing bc majority of the local excavation companies are being contracted to work the wildfires. He was helpful with decision-making and did extra things outside the scope of job expectation. Will definitely use this company again."
Response time1 day
Recommended by100%of homeowners
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Zeis Construction
New to Angi

Serving Lewiston, CA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

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TM Custom Grading & Landscaping
New to Angi

Serving Lewiston, CA and surrounding areas

I was born and raised in a local family run Landscape / Construction/Excavation Contracting Business. My communication skills along with full customer interaction with every aspect of the project , makes each job run smoothly. From Grading out a rural gravel road or installing a Septic system or concrete walkways patios complete custom Landscapes with water features Night lighting Fencing Chain Link or Wood . Free Estimates

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Excavating questions, answered by experts

Yes, most services include site leveling and foundation work. Confirm with your contractor for specifics.

The time it takes to build a pool—and dig out the area—varies based on the pool size and type. A professional excavator will take between four and eight hours to dig a pool. The process will take longer if they encounter large boulders or tree roots. Keep in mind that this is a small part of the process in the long run. You will need between eight and 12 weeks to build a pool from start to finish, including the time to apply for permits.

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 best type of soil to build on is a mixture of sand and clay, known as loam soil. Loam soil has the best combination of these soil types to build a foundation on. The clay particles help with water retention, so it won’t erode like sandy soil might, and the sandy particles help with drainage, so you won’t see unsafe soil expansion or have an increased risk of leaks from water sitting against your foundation.

The best way to protect tree roots is to avoid the roots entirely by excavating outside the root radius of the tree. For nearby projects, it’s a good idea to construct a temporary retaining wall. But that’s not always possible, depending on the project and the root system. In these cases, consider using alternative equipment like an auger to tunnel under the ground.

Remember, tree roots can damage nearby cement foundations as they grow. If a tree is close enough to interfere with large excavations, it may be better to remove the tree than risk future problems.

The Lewiston, 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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