We do it in the dirt.
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Helping build the Inland NW

Since 1971


Commercial & Residential Excavation

7C's Construction areas of expertise includes underground utilities, road construction, grading, site work, land clearing, footings, foundations, water, septics, sewer and storm drainage systems.

7C’s was established in 1971 and has been a family owned and operated business ever since.  Our longevity in business is due to our belief in quality as we base our reputation on building a solid foundation.   





28703 N Cedar Rd.
Deer Park, WA 99006


(509) 276-8628




Backbone of our business.

road construction

From rural driveways to whole developments.


Site prep to finish grade.

Drainage systems

Storm water fine grading and more.

underground utilities

This includes sewer, water, power and gas.

site work and land clearing

We can make anything happen.



Let's Chat.

Use the form below to contact us regarding any work you'd like us to do.

For job opportunities, please email us your resume. 

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Please do not include confidential or sensitive information in your message. In the event that we are representing a party with opposing interests to your own, we may have a duty to disclose any information you provide to our client.