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TRUSTED BY UNION CITY, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon21
    Verified excavation services reviews

Top-Rated Excavation pros in Union City - Updated Nov 2026

Avatar for Carlos J Romero Grading and Paving Contractors, Inc.
Carlos J Romero Grading and Paving Contractors, Inc.
5.0(
2
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Union City, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"CJR is all about quality, they treat you like a real customer. The team is extremely professional, they clean the site daily before leaving for the day. You and your neighbors will not even notice its a site under construction. The quality of work is far and beyond your expectations. I will continue to use CJR for upcoming projects and referrals to all my friends and family."
Response time1 day
Recommended by50%of homeowners
Avatar for Ultra Construction Group Inc
Ultra Construction Group Inc
4.4(
5
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Union City, CA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Gio and the entire Ultra Construction Group team are amazing. They showed up on time and were incredibly organized and their attention to detail made the project even better then I imagined. I would highly recommend this company for any concrete project big or small."
Response time2 days
Response rate90%
30 neighbors recently requested a quote
PINA EXCAVATING CONTRACTOR
New to Angi
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Union City, 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
Raya Engineering
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Union City, 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!

Avatar for Green Infrastructure and Environmental Inc.
Green Infrastructure and Environmental Inc.
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Union City, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Green Infrastructure and Environmental Inc. is a licensed, insured general contractor serving San Francisco, Sacramento, and surrounding Northern California communities. We build durable, well-finished work for homeowners who want it done right the first time. \n \nOur specialties include concrete flatwork, foundations, home additions, full remodels, electrical, and paver installations. Whether you're pouring a new driveway, expanding your living space, or upgrading your home's electrical system, our crews handle the job from planning through final cleanup. \n \nWhat sets us apart: \nClear, upfront estimates with no surprises \nSkilled crews and quality materials \nReliable scheduling and honest communication \nCode-compliant work built to last \n \nWe take pride in treating every property like our own and standing behind our work. Contact us today for a free, no-obligation quote and see why our customers trust us with their biggest projects. \n \n

4 neighbors recently requested a quote
Avatar for New Era Rooter & Plumbing
New Era Rooter & Plumbing
4.8(
34
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Union City, CA and surrounding areas

Free estimates

Emergency services offered

"The work was great, they have the technology to find the issue quickly and they are very knowledgeable. Communication was great at front, we discussed any additional services needed in advance and went over the process in general. The excavation, repair, and finishes were very clean. New Era Rooter & Plumbing are very professionals. I will definitely recommend this company and call them again."
Additional Photos
Additional Photos
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+3

Recommended by93%of homeowners
Vargas Landscaping
4.7(
48
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Union City, CA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"He was available by phone, and was flexible in scheduling meetings which is great. He was professional, and seemed quite knowledgable. In the end, I didn't use Nato's services because his quote was twice as much as the other contractor I was considering. Perhaps his prices may be more competitive in other services he offers. Either way, working with this company was a pleasant experience."
Recommended by95%of homeowners
Avatar for Miguel’s Plumbing, Electrical & Maintenance
Miguel’s Plumbing, Electrical & Maintenance
5.0(
16
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Union City, CA and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Miguel completely re-configured our plumbing under the house a few years ago and we have never had issues again. He diagnosed the issue accurately and was able to complete the job quickly and at the highest level of quality. His knowledge of virtually all mechanical and structural aspects of renovation/repair are second to none. I would recommend him without hesitation to anyone and with highest confidence."
Plumbing Project
Plumbing Project
Kitchen & bathrom remodel
Transfer switch for solar generator
Kitchen & bathrom remodel

+78

Recommended by100%of homeowners
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Excavating FAQs, answered by experts

The rules for trenching and excavation include setting up and following safety protocols, learning how to use tools and machines properly, and ensuring there is a safe exit for all workers. Keep heavy equipment and materials away from the edge of the hole or trench. Call the 811 dig line before starting any excavation or trenching project to ensure you don’t hit any electrical or gas lines.

You can bury underground electrical wire six inches deep—but only if you use a rigid metal electrical conduit. For rigid, non-metallic conduits, bury the wire at least 12 inches deep. If using an underground feeder cable rated for direct burial, you'll need to place it at least 18 inches deep, as it has no conduit for extra protection.

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.

Concrete blocks are the cheapest way to base a shed. However, the space in between allows critters to go under, burrow, and even damage your shed’s frame. For a more pest-proof option, consider building a shed base with gravel or paver stones. Both options are fairly affordable and easy enough for a DIY project. For gravel, you can build a wooden frame to contain the loose material.

Skunk digging looks like a series of small, cone-shaped holes on a lawn or around the perimeter of a home, porch, deck, or shed. The holes that skunks dig when searching for grubs tend to be no more than four inches in diameter and may be up to four inches deep.

The Union City, CA homeowners’ guide to excavation services

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