Contact Information

17331 135th Ave NE, Suite C

​Woodinville, WA 98072

P: 425.286.2411 F: 425.286.2417

​Mission Statement

To serve our client with integrity; exceeding their every expectation in our thought, word and deed.

Copyright Koss Construction Inc.. All rights reserved. 

Brent Hill

Project Manager


Konrad Koss



Dan Gutschmidt

Project Manager


Our Team

"I have worked with Koss Construction on several projects of various size and in all cases they met our schedule and were very responsive to our needs."

-Joe S.


We believe that our success is dependent upon the close working relationships with our clients. Our approach is to work closely with each owner, subcontractor and other consultants providing complete transparency. We strive for the highest quality in our projects and set our standards high. We accept challenges head-on and find solutions. We take responsibility for our actions and seek opportunities to improve.We believe in completing the project with our clients’ best interests at heart.

Our Philosphy


We know that you’re reputation is only as good as the results of your last job. That’s why we proud ourselves on a results-oriented approach.