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Verified Reviews for Excavation pros in Portola, CA

*The Angi rating for Excavation companies in Portola, 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 Portola, 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 09, 2026

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Avatar for Freedom Forest Management
Freedom Forest Management
5.0(
5
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Portola, CA and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"I had about 5 acres to get cleared out from over growth, I called Freedom Forest Management and a gentleman named Levi was out at my property two day later to give me a quote, the quote they gave me was a little pricey compared to others but they were able to get to it in a couple of days compared to others that were 3-4 weeks out. They did a bang up job cleaned the area up really good even trimmed up a tree I had since he said needed it to help with growth. I definitely got the quality of work I paid for and then some."
Hazard tree removal
Hazard tree removal
Hazard tree removal
Hazard tree removal
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Recommended by100%of homeowners
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Diablo excavation & construction inc
New to Angi
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Portola, CA and surrounding areas

In business since 2018

Free estimates

We are a locally owned and operated company. We value honesty and integrity in all aspects of our business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

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Olivares Excavation
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Portola, CA and surrounding areas

In business since 2005

Free estimates

Credit card accepted

Olivares Excavation is a reliable, California-based excavation company specializing in residential and commercial site preparation. Serving communities across the Golden State, we offer expert services including land clearing, trenching, grading, foundation digging, and utility installation. With a focus on safety, efficiency, and quality workmanship, our team uses modern equipment to ensure every project is completed to the highest standard. Whether it's preparing a lot for new construction or handling complex excavation needs, Olivares Excavation is committed to delivering dependable results across California.

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Bobcat Services
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Portola, CA and surrounding areas

We are dedicated to providing our clients with the very best in installation and repair for your concrete and masonry needs. With over seven years of industry experience, we specialize in a variety of residential and commercial brick, stone and concrete work. We take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. \n

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Excavating questions, answered by experts

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.

Septic drain lines (or leach lines) are typically buried between 18 and 36 inches underground, and should be at least 6 inches below the surface. These pipes are perforated and surrounded by filtering materials like sand or gravel. Burying the lines at this depth helps minimize odors and allows bacteria and other biological processes in the soil to effectively treat the wastewater. Burying lines too close to the surface can cause issues unless the soil is very compact and stable.

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.

The best method for digging a trench depends on the scope of the project. For a short, shallow trench (less than 2 feet deep) in light, soft soil, digging by hand may be sufficient. However, digging by hand is labor-intensive, so consider the effort required. A machine trencher is the better option for longer trenches (over 100 feet), deeper ones, or when dealing with difficult soil conditions, such as rocky or hard ground, or obstructions like tree roots. A machine can save significant time and energy in these situations.

While general contractors sometimes handle demolition, you can also look specifically for local demolition contractors. Demolition experts need to understand structural integrity, the equipment needed for safe demolition, and the permits required for demolition.

The Portola, CA homeowners’ guide to excavation services

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