Septic System Installation

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Septic System Installation

We are master installers. Our licensing includes every and all system types designed for the state of Washington. We specialize in critical sites and limited space installations! If you have a difficult site, no worries, A-1 will provide expert, efficient & satisfaction guaranteed installation of your septic system. When other companies can’t or won’t, we always come through for our clients! Our master installer and owner Darren McCullough and staff have a ‘Whatever It Takes” attitude for all of our clients.

Some of the current Septic Systems that are being designed and installed in King county are as follows;

  • Whitewater ATU OnSite Septic system
  • Avantex system
  • ATU to Drip System
  • Pressure Distribution
  • Gravity Septic System
  • Sand Filters Septic Systems
  • Mound Septic System
  • Fast System





Our Install Coordination service is part of our standard Septic System installation services.  With other companies, you are on your own, but with A-1 Environmental we do it all for you as part of our goal to provide excellent customer service to our family of clients.  Your install coordinator takes care of you every step of the way... From your 1st raw land service call, obtaining your system design, bid proposal process (we will meet or beat any other Apples to Apples bid), notarization & recording of county documents, permit submission and retrieval, inspections & scheduling. When you choose A-1 Environmental as your Septic System Installation Company, you truly receive first class service and “one call does it all” service.

It is our mission to make the Septic System Installation process as easy and painless as possible for our customers! When quality, courtesy & Convenience count, you can count on A-1.

Our policy is to meet or beat any “Apples to Apples” Septic System Installation bid.  We want your business and we will out-shine any other Septic Installation company in King County through our cost guarantee and the first class excellent customer service that our clients receive when they choose A-1 Environmental as their Septic system Contractor.

Give us a call today to find out more about our Septic System Installation Services

425-861-6978 or