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Best excavation pros near Keaau, HI

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TRUSTED BY KEAAU, HI HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon18
    Verified excavation services reviews

Top-Rated Excavation pros in Keaau - Updated Nov 2026

Arborist Services LLC
5.0(
6
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Keaau, HI and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"We are repeat customers of Aborist Services. They are professional, punctual and dependable. The site that was cleared had some challenges that they were able to solve. Thank you for a job well done. ."
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+22

Response time3 days
Response rate100%
Recommended by83%of homeowners
Avatar for Precision Services
Precision Services
5.0(
29
)
Building Site - Preparation and Clearing

Serving Keaau, HI and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

"Very good team of crew to get the job done efficiently and competently. Puncture and responsible. These are very capable people. I highly recommend Precision Landcare! Aloha."
41 neighbors recently requested a quote
Recommended by46%of homeowners
TNS Excavation, Inc.
New to Angi
Excavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Keaau, HI and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

Here at TNS Excavation, Inc., we are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of quality home improvement services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! \n \n

Response time8 hrs
4 neighbors recently requested a quote
Kamahele Land and Tree Care
New to Angi
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Keaau, HI and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Kamahele Land and Tree Care 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!

21 neighbors recently requested a quote
Affordable Big Island Excavating
5.0(
2
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Keaau, HI and surrounding areas

In business since 1985

Free estimates

Offers commercial services

"Dwight was a pleasure to work with his skill with the Excavator is exceptional, and we were able to get all of our projects done in a timely manner. I would highly recommend him to anyone and I continue to use his services in my projects.."
Response time40 mins
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Excavating FAQs, answered by experts

Prior to excavation, you should prepare the dig site and call 311 before you sign anything.

To get your site ready for excavation, you should move anything in the area that isn’t affixed to the land. You can save money on the excavation by removing hardscaping, including walkways, decks, concrete patios, and paver patios.

Before you carry out any digging, you should call 311 to confirm that there are no utility lines running through your excavation site. Skipping this step could lead to severe injury and property damage if your excavator hits a water, sewage, or gas line.

Trenchers can dig holes as narrow as 4 inches or as wide as 4 feet. Check the specifications of the trencher you rent or buy to determine how wide it will cut into the landscape. Better yet, let the excavation company know how wide you’d like the trench to be, and they can help you choose the right trencher for the job (or do it for you).

You should dig 3 to 6 inches deep for plastic edging. Dig as wide as you need to fit your plastic edging into it—2 inches is usually sufficient.

Sewer lines can be buried anywhere from 18 inches to 8 feet deep, with a common average depth between 18 and 30 inches. The exact depth depends on local factors like climate and soil type. In colder regions, pipes must be buried deeper (below the frost line) to prevent freezing, sometimes as deep as 8 feet. The digging depth can also impact the cost of sewer line replacement. To find the specific depth for your property, you can check the building plans for your system, which should be on file with your city or local sanitation department since permits are required for installation.

Chipmunks dig their burrows about three feet deep and up to 30 feet long. The entrances can be two inches wide or more. Chipmunks are fiercely protective of their burrows and use them to protect the nuts and seeds they gather for the long winters.

The Keaau, HI homeowners’ guide to excavation services

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