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Chehalis’ top rated excavation contractor

Dunnagan Development LLC


Excavation Contractor in Lewis County

Whether it is moving a lot of earth, or tearing out tree stumps and brush, we’ve got the equipment, know-how, and the determination to get the job done right.

We have earth-moving and civil construction experts ready to serve you. Our team combines strength, knowledge, and experiences to provide high work ethics to all our customers. They will deliver excellent results for your project.

When you hire our professionals for excavation projects, they will first inspect the land and decide whether to proceed with drilling shafts, foundation digging and snow removal, debris removal, and ground dewatering.

At Dunnagan Development, LLC we want to make the decision on who you should hire to do your excavation project easy for the residents of Chehalis and its surrounding areas. Some of our services include:

Residential Excavation

Maybe it’s a septic tank that needs to be installed or repaired. Perhaps you have the plot to build your new home on and you need someone to excavate a foundation. Whatever the job, Dunnagan Development, LLC is ready to help with any of your residential excavation needs.

Commercial Excavation

Our commercial excavation team is highly skilled and has years of experience in preparing your site for the business you are building. We are great at helping you create a vision for your site, or work with the vision you already have to find the right solutions for your project.

Check out some of our work right here!

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Headquartered in Chehalis, WA, we also service all of Southwest Washington. Not only are we Licensed, Bonded & Insured for your excavation projects, we are also ready and equipped to help you with:

Land Clearing and Grading

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road work

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dump truck & hauling

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driveways & Parking lots

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utility trenching

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looking for something else?

Let’s set up a time to chat and see how we can help you!


BENEFITS OF HIRING DUNNAGAN DEVELOPMENT for your next excavation project

For many years, we have been at the forefront of many excavation projects in Washington state. We are known for our stringent safety protocols, above-board after-work cleanup operation, and high regard for environmental protection.

So whether you're looking for an excavation contractor in Chehalis Wa or Lewis County, we're with you every step of the way. Ask us today for a FREE, no-obligation quotation. For your peace of mind and full satisfaction, everyone in our crew is certified, bonded, and Insured.

You can also check out the high quality Land Clearing and Grading work we do right here in the Chehalis area.


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Ready to take the next step? Schedule a project consultation and receive a FREE estimate.