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  • Verified reviews icon11
    Verified excavation services reviews

Find Excavation pros in Angwin

Avatar for Castaneda Grading & Excavating
Castaneda Grading & Excavating
5.0(
23
)
Landscape - Minor Grading or ReslopingBuilding Site - Preparation and ClearingExcavation - Major Grading or Resloping+2 more

Serving Angwin, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Humberto is a very creative problem solver! Personable and definitely interested in customer satisfaction, so spends time understanding the full scope of the problem. The problem was the subterranean north wall of the sanctuary of First Presbyterian Church in Vallejo that was far from being waterproof, especially with the rains last winter. Castaneda dug out the soil next to the wall, pressure washed it and applied two coats of DryLok and then a layer of Henryâ s waterproofing. Then Humberto installed a French drain and then a big pipe to route the water off of five downspouts. To get the correct drainage slope, more excavating needed to be done than anticipated. Removed five landscaped trees and lots of concrete that was in the way of the drains which were to be routed under city sidewalks."
Garden
Graded
Finished driveway
Final slope grade
Finish grade 4 inches below sidewalk

+77

Response time1 day
Response rate96%
22 neighbors recently requested a quote
Avatar for SH Grading & Excavating
SH Grading & Excavating
5.0(
17
)
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingBuilding Site - Preparation and Clearing - For Business+2 more

Serving Angwin, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"The contractor and crew from SH grading and excavating was fantastic. They were conscientious, hard-working, clean, and excellent communicators. Jose runs his business very professionally and does quality work very reliable. I would highly recommend them."
Grading
Grading
Grading
Grading
Dirt pile

+25

Response time7 hrs
Response rate100%
15 neighbors recently requested a quote
JOHN MOUNTAIN
5.0(
7
)
Excavation - Major Grading or ReslopingBuilding Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Angwin, CA and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

Mountain General Engineering LLC is a full-service underground contractor specializing in excavation, grading, concrete, and utility installation. We provide water services, sewer laterals, storm drain systems, retaining walls, paving, and both wet and dry utilities. Our team delivers reliable, high-quality work with a focus on safety, efficiency, and long-lasting results. From small residential projects to larger site work, we take pride in getting the job done right the first time.

Response time10 hrs
10 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Rose Valley Earthworks & Paving
Rose Valley Earthworks & Paving
4.7(
15
)
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping+2 more

Serving Angwin, CA and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

ROSE VALLEY EARTHWORKS & PAVING is committed to excellence in every aspect of our\nbusiness. We uphold a standard of integrity bound by fairness, honesty,\nand personal responsibility. Our distinction is the quality of service\nwe bring to our customers. Accurate knowledge of\nour trade combined with ability is what makes us true professionals.\nAbove all, we are watchful of our customers' interests and make their\nconcerns the basis of our business. Please call for your free estimate today! RVEP 707-537-5885

5 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Sonoma Siteworks & Engineering
Sonoma Siteworks & Engineering
5.0(
4
)
Building Site - Preparation and ClearingExcavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping+2 more

Serving Angwin, CA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

Services / Expertise\nSite Preparation\nGrading\nExcavation\nPaving\nDemolition\nVineyard Preparation\nPonds\nConcrete\nPumping Services\nSidewalks\nPatios\nCurb and Gutter\nRetaining Walls\nUnderground\nTrenching\nWater Lines\nSewage Lines\nStorm Drainage\nSeptic Systems\nResidential\nFoundations\nLand Development\nMinor Projects\nFire Mitigation\nEstate Management & Maintenance

Additional Photos
Clearing and Grading
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for De Haro Landscaping
De Haro Landscaping
4.7(
12
)
Landscape - Minor Grading or Resloping

Serving Angwin, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

Welcome to De Haro Landscaping! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

Front yard Landscape
Front yard Landscape
Front yard Landscape
Front yard Landscape
Front yard Landscape

+17

Response time2 days
4 neighbors recently requested a quote
Recommended by90%of homeowners
Juan Contreras Landscaping
5.0(
6
)
Landscape - Minor Grading or Resloping

Serving Angwin, CA and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quick response

Juan Contreras Landscaping, is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Juan Contreras Landscaping is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.\n\n\n

Response time3 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for E G Paving Construction, Inc.
E G Paving Construction, Inc.
5.0(
2
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Angwin, CA and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

E G Paving Construction is a premier paving company serving Sonoma County, Napa County and Marin County.We offer a full range of asphalt and concrete paving solutions for both large and small projects. Specializing in Asphalt Done, Grading, Concrete Replace, Sewer, Storm Drain, Pipes or any such excavations call 707-791-0317 to get a quote.

Driveways
Building pads
Concrete patio
Preparation
Asphalt pave

+4

Response time2 days
12 neighbors recently requested a quote
Recommended by50%of homeowners
JG LANDSCAPE CONSTRUCTION
5.0(
1
)
Landscape - Minor Grading or Resloping

Serving Angwin, CA and surrounding areas

Approved

In business since 2025

Free estimates

\nWe take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time1 day
2 neighbors recently requested a quote
Raya Engineering
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Angwin, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

Here at Raya Engineering, we sustain our company on the principal that our customers come first. We offer services that are tailored to your needs and we're ready to show you what our experience can bring to your project! Call us today!

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Excavating questions, answered by experts

If you don’t have a crawl space but have a partial basement you want to make deeper, you can expect to spend a little less—between $40,000 and $90,000 on average. However, if you’re not adding new finished square footage, you won’t see much in the way of ROI.

Most residential basements are 8 to 10 feet deep. You can dig deeper depending on building codes, but it does become more difficult. You’ll likely need to install stronger foundation walls and additional supports to handle the increased load. Depending on the water table, you may also need a water management system. Clay soil can support a deeper foundation than sandy soil. A structural engineer will be able to tell you the maximum, feasible depth.

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.

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.

Directional drilling is complex and requires training to use the advanced machinery. It can be challenging to monitor the position of the drill since there’s no direct line of sight. Directional drilling can also be more expensive with a cost of $10 to $30 per linear foot compared to $5 to $12 per linear foot for trenching. 

The Angwin, CA homeowners’ guide to excavation services

From average costs to expert advice, get all the answers you need to get your job done.