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CAD Construction LLC

Founded 2010 • Angie's List since May 2013

A Rated | 1 Review


We are a general contractor in the Portland area with focus on excavation and underground utilities....

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Drainage Masters LLC

Are you in need of sewer repair? Do you have standing water in your crawlspace, a soggy yard, wet basement, broken or clogged roof drains or driveway puddles? Do you need a new dry well, french drain or just some grading? Check out our website to see how we can help you or just give us a call. We can set up an appointment for a free estimate to give you a professional evaluation of your drainage needs. Drainage Masters will give you an effective plan of action, quality work and competitive prices. Our work comes with warranties that will be honored. Drainage Masters became a licensed general contractor in October 1996. In 2015, Seth Kenworthy became the sole owner and manager of Drainage Masters LLC. They are licensed, bonded and insured in both Oregon and Washington. Since the beginning of Drainage Masters in 1996, Seth has proven his ability to understand the often-complex technical details of solving drainage problems and of effectively and efficiently managing every project they do. Our service territory is primarily the Portland/Vancouver metro area but extends as far north as Chehalis, as far south as Salem and from the Cascades to the coast. Drainage Masters combines technical expertise, integrity, quality work, a strong customer service ethic, environmental consciousness and fair pricing to bring our customers the best contracting experience they can get. Our full service and quality work has resulted in many satisfied customers and welcome referrals. Not all drainage or water management projects are complicated. But whether they are or not, you can be sure that Drainage Masters can handle it. Their professional and courteous office staff will be happy to assist you in scheduling a free estimate and then follow up to schedule your project as quickly as possible. Drainage Masters is now offering full service sewer repair, give us a call today. Call Drainage Masters today!

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A few reviews for this pro…




My job was pretty small one. I needed one gargantuan lump of clay and dirt removed from my future driveway. I arranged with him to load up the stuff in a dump truck (or two) and haul it off. I needed him to leave just a little behind for backfilling. How much? I had no clue, but Chad approximated what I might need for my remaining dirt filling.  Both when Chad arrived to quote the project and when...

Chad Dykehouse of CAD Construction does all kinds of projects-- big ones, small ones.  Whether you need a ditch dug, a house addition foundation excavated, or someting even larger-scale, he does it. He grew up in and around his dad's excavation company and so he knows the trade and the topography very well. He has excavated projects at Orenco Station, various subdivisions, and even worked on an expansion of the Hillsboro Airport Taxiway.

CATEGORY excavators

Services Offered

We provide site preparation, grading, clearing, tree removal, demolition, excavation, storm, sanitary, water, and dry utility installation, retaining walls, Koi and Sturgeon ponds, pressure testing, chlorination, de-chlorination, leak detection, back flow device testing, trenchless technology methods such as bursting/directional boring, consultation and much more. We have over twenty five years of experience.

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