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TRUSTED BY SAINT HELENA, CA HOMEOWNERS

  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon11
    Verified excavation services reviews

Top-Rated Excavation pros in Saint Helena - Updated Nov 2026

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 Saint Helena, 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%
25 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 Saint Helena, CA and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

"I cannot say enough about how good this experience with John Mountain/Mountain Engineering has been. They said it would be 3 weeks; anti was. The work was painstakingly done, including a French drain behind the wall. And they replaced the plants that were destroyed during the process, which was an unexpected bonus."
Response time10 hrs
10 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for De Haro Landscaping
De Haro Landscaping
4.7(
12
)
Landscape - Minor Grading or Resloping

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Rafael did an excellent job repairing my fence. I will highly recommend him for any project based on how he completed this one so thoroughly. Thank you again for a job well done. It was a pleasure meeting you."
Front yard Landscape
Front yard Landscape
Front yard Landscape
Front yard Landscape
Front yard Landscape

+17

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

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quick response

"I hired Juan to redo my front yard. He removed the old lawn, updated the irrigation, and designed the new landscape. He did an amazing job and I am extremely happy with the finished project. He was on time and always communicated any changes. Juan and his team where friendly and professional throughout the entire project."
Response time3 hrs
10 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 Saint Helena, CA and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Edgar and his employees were amazing. Their bid was the best. Other guys said they would have to rip up pavement that this crew could do no problem minimally. The guys were so well groomed and polite. Not that that matters but it was an extra bonus. Lovely crew and incredible job in a few days. I will for sure use them again."
Driveways
Building pads
Concrete patio
Preparation
Asphalt pave

+4

Response time2 days
10 neighbors recently requested a quote
Recommended by50%of homeowners
PINA EXCAVATING CONTRACTOR
New to Angi
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Saint Helena, CA and surrounding areas

Approved

Free estimates

Credit card accepted

Roseville Demolition is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

2 neighbors recently requested a quote
JG LANDSCAPE CONSTRUCTION
5.0(
1
)
Landscape - Minor Grading or Resloping

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2025

Free estimates

"Julian and crew are fantastic and are perfectionists. They do the job right and more which is rare. I had them install a colored cement pad and a 12 x 14 gazebo on the pad. .All was done to perfection. Normally I am nervous when I have contract work done however this company made me so relaxed. They delivered better than high quality work as well as total communication. I am so happy to have found this company and will use them for future projects."
Response time1 day
1 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 Saint Helena, 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 FAQs, answered by experts

Your contractor should handle dust control during the project. It's best to speak with your contractor beforehand to check if they plan to cover your furniture, protect your vents, or use fans to redirect dust. Eliminating drywall dust is a particularly large challenge during construction, so always take this into account during your planning phase.

Generally, a trenchless sewer line is worth the cost. If your old system needs replacement, trenchless sewer repair or replacement can save you thousands on excavation costs. Every homeowner’s situation is different, but this method is definitely worth it in a lot of cases.

The easier way to find buried sprinkler lines is to use the plan from the professionals who installed the system. If you don’t have professional plans, listen for running water on your lawn when you turn on the system. You may also spot wet areas, giving you an idea of where the heads are. Once you find the sprinkler heads, you’ll likely be able to connect the dots between them, revealing the system below.

Depending on the severity of the freeze and the method used, thawing frozen underground pipes can take anywhere from 30 minutes to several hours. Applying heat directly to the pipe using heat tape, infrared lamps, or hot water jetting can speed up the process. However, patience and careful monitoring are key to avoiding pipe damage.

You do not have to dig footers for a deck as long as it meets local code and holds up to weather in your area. If you live somewhere that experiences high winds and earthquakes, you may need to dig for your deck posts. Deck blocks, post anchors with base plates, and helical pile systems are the three no-dig deck post options you can choose from if local code permits.

The Saint Helena, CA homeowners’ guide to excavation services

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