Washington State OSS Specialists

Focusing on King, Snohomish & Kittitas Counties

Your Home

Congratulations! You are working toward accomplishing a dream. Whether you're building a new home, remodeling your current home, working with your existing system or simply contemplating the wide range of opportunities for working with land, exploring the world of On-site Sewage Systems (OSS) will be one of your first stops.
OSS manifold

There are many stepping stones on the path from preliminary evaluation to final approval of your OSS project. Regardless of the location of your property there will be many hoops along the way. We're here to guide you along and act as an advocate and liaison for you and your dreams

What do we offer our customers? Check out Our Team for details on what our full service Septic Design Company is all about.