Dunnagan Development

Welcome to Dunnagan Development, your local excavating contractor in Chehalis, Washington. We are a dedicated team of professionals, committed to providing the highest quality excavation and site work services at an affordable price. Our goal is to help you make all your project dreams a reality, with a no-hassle, free estimate.

Our team is experienced and professional, with a wide range of skills and knowledge to offer. From land clearing and grading, to road building and driveway installation, we have the necessary equipment and expertise to complete your project successfully. We are a local, Chehalis-owned and loved business, and we take pride in serving our community with excellence.

At Dunnagan Development, we believe in environmental protection and responsible construction practices. We work sustainably and responsibly, partnering with certified professional civil engineers to ensure that our projects meet local and state codes.

Services Offered

Excavation and Site Work Services

Excavation involves more than just leveling a construction site. It requires skills, techniques, and knowledge to create a flawless, stable site. At Dunnagan Development, we offer a wide range of excavation and site work services, including land clearing, grading, road building, driveway installation, and utility trenching.

Land Clearing and Grading

Whether you are looking to excavate for a commercial development or simply need someone to clear brush, trees, and stumps to cut in roads, driveways, or building sites, Dunnagan Development is your go-to site work contractor. We have the necessary equipment and expertise to complete your project successfully.

Driveways & Parking Lots

Installing driveways involves excavating and dozing, cutting top soil to rough grade, installing road fabric, hauling rock base coarse and finish coarse, dozing and grading, and compacting with a vibratory roller. At Dunnagan Development, we have the necessary equipment and expertise to complete your project successfully.

Utility Trenching

Dunnagan Development provides excavating of trenches for power, phone, or water lines. We install conduit, pull boxes, and pull cord, and backfill and finish grade trenches.

Road Work

Don't gamble with your next road construction project! At Dunnagan Development, we offer the best road construction crew in the industry. We provide free estimates, and we are committed to excellence in every project we undertake.

Excavation & Drainage

Whether it is moving a lot of earth, installing a french or storm drain, or tearing out and replacing an existing drainage system, Dunnagan Development has the necessary equipment and expertise to complete your project successfully.

Contact Us

If you are looking for a professional and experienced excavating contractor in Chehalis, Washington, look no further than Dunnagan Development. We offer free estimates, and we are committed to providing the highest quality excavation and site work services at an affordable price. Give us a call at (360) 880-9919 or fill out the form on this page to get started. We look forward to serving you!