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Verified Reviews for Excavation pros in Manteca, CA

*The Angi rating for Excavation companies in Manteca, 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 Manteca, 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 September 01, 2026

Find Excavation pros in Manteca

Avatar for Herman Landscaping and Sprinkler Services
Herman Landscaping and Sprinkler Services
4.3(
24
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Manteca, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Attention to detail.. impressive finish. Herman did my artificial turf installation and finished my retainer walls and irrigation. impressed with his attention to detail."
Landscaping installation, bark,rocks, grass and irrigation system
Trex Deck
Grass installation
Landscaping design and project
Synthetic grass

+89

Response time1 day
Response rate100%
Recommended by95%of homeowners
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Avatar for Ultimate Concrete Inc
Ultimate Concrete Inc
4.6(
55
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Manteca, CA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"I already responded to a request for a review for this job. I am not going to continue to respond to Angie's List for multiple requests"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Recommended by100%of homeowners
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Avatar for Cal Underground
Cal Underground
4.8(
4
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Manteca, CA and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Cal Underground did septic and excavation for my New shop and did one awesome job. Soon I’ll hire him back for my housing development!"
Close to finished new driveway, waiting on gravel
Guest House Demolition
Driveway Culvert Pipe Repair
Aerobic Septic System
New driveway in progress

+86

Recommended by100%of homeowners
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Avatar for RS Milestone General Engineering, Inc.
RS Milestone General Engineering, Inc.
5.0(
2
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Manteca, CA and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Professional and efficient I would hire them again in a heartbeat kdb"
Response time1 day
Response rate89%
Recommended by100%of homeowners
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Avatar for Pantoja Engineering And Excavation, Inc
Pantoja Engineering And Excavation, Inc
5.0(
1
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For BusinessLandscape - Minor Grading or Resloping

Serving Manteca, CA and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"We recently worked with Pantoja Engineering And Excavation, Inc. on a site development project, and we couldn’t be more satisfied with the results. From start to finish, their team demonstrated professionalism, attention to detail, and a strong commitment to delivering high-quality work on time and within budget. Their crew was well-equipped and highly skilled, handling everything from grading and trenching to foundation prep with precision and efficiency. Communication throughout the project was clear and consistent, which made coordination smooth and stress-free. It’s rare to find a contractor that combines technical expertise with such a strong work ethic and integrity. We highly recommend Pantoja Engineering And Excavation, Inc. to anyone in need of excavation or engineering services and look forward to partnering with them again on future projects."
Response time2 days
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Showing 1-10 of 38
Excavating questions, answered by experts

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.

Because decomposed granite is a durable material, a crushed rock or gravel base is optional as long as the DG is properly installed and compacted. However, installing a base is a good idea because it will ensure proper drainage and stability and act as a weed suppressant (although you may still occasionally have to pull weeds). Installing an adequate base can also increase the durability of driveways and walkways. If you forego the paver base or gravel underneath, line the area with landscaping fabric to avoid weeds.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

Yes, you can install a trench drain if you already have concrete in your yard or garden. While it can complicate some aspects of the job and slightly run up the cost, it is doable. Residential trench drains can be easily retrofitted to outdoor areas with concrete without having to remove excessive amounts of your patio, pool area, or decorative walkways.

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 Manteca, CA homeowners’ guide to excavation services

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