Jeff Amman, a licensed Septic System Designer since 1990, is the founder and President of Amman Septic Designs Inc.

      With over three decades of experience, Jeff can help you design the most appropriate system for your needs. 

      At Amman Septic Designs Inc., our policy is to produce high quality Septic Designs coupled with prompt and thorough customer service.

      Although licensed state wide, we design only in Snohomish and King County to better serve our clients. We can design any system that falls within the Health District code.  Difficult projects are one of our specialities; when everyone else says "no" give us a call.

      We welcome you to explore our website and call or email us with any questions that you may have.

      We are the only firm to disclose our prices online. Click on the tab for the county you're in for prices. And yes the prices listed are accurate and current. We very rarely raise our prices despite what's going on in our industry but when we do raise our prices we will update our website first.

We accept the following forms of payment: Cash, Check, and VISA/Mastercard/American Express; There are no additional fees to use a credit card with us. All Public Health fees will be paid by you directly to Public Health.

 Sorry but at this time we do not accept cryptocurrency payments.

                                                      We look forward to hearing from you!

                                                 Need help paying for a repair or replacement septic system?

                             Help is available https://www.craft3.org/homeowner-loans/clean-water/washington

Amman Septic Designs Inc

Monroe, WA 

(360) 794-7809 office

jeffamman@gmail.com