Trusted Septic System Installation & Excavation in Omak, WA

Complete Septic Solutions for Long-Term Performance

Proper septic system installation protects your family's health while preserving Omak's pristine natural environment through responsible waste management. Our complete septic tank and drainage field excavation creates systems that perform reliably for decades.



We handle new septic system installs and replacements with meticulous attention to soil conditions and drainage requirements.



Our soil and percolation prep ensures optimal performance through collaboration with licensed plumbers or septic specialists, plus professional septic system grading and backfill that prevents future problems.


Book now to schedule your septic system installation & excavation in Omak, WA.

Septic system installation alongside a beige building; green tanks, pipes, and yellow cover in dirt.

What's Included in Our Septic System Installation & Excavation?

Our comprehensive service covers complete septic tank and drainage field excavation using precise measurements that accommodate your property's natural slope and soil composition. We coordinate soil and percolation prep with required testing to ensure your system meets health department specifications.



New septic system installs and replacements include proper tank positioning, distribution box placement, and drainage field layout that maximizes treatment efficiency. Arch Excavation LLC works alongside licensed plumbers or septic specialists to ensure seamless integration of all system components.


Septic system grading and backfill services protect your investment through careful compaction that prevents settling while maintaining access for future maintenance and inspections.


Call (509) 808-0736 today to schedule septic system installation & excavation in Omak, WA.

Excavator digging in front of a red barn; two people observe.

Omak, WA Septic System Installation & Excavation Advantages

Our collaboration with licensed specialists ensures your septic system meets both performance standards and regulatory requirements.


  • Why choose local contractors? We understand Omak's soil types, seasonal water table changes, and county permit requirements for septic installations
  • How do we ensure quality? Complete septic tank and drainage field excavation follows engineering specifications for proper depth and spacing
  • What sets our service apart? Soil and percolation prep includes comprehensive testing that prevents expensive system failures
  • How do we handle challenging sites? New septic system installs and replacements adapt to sloped terrain and rocky conditions common in the Omak area
  • How do we serve Omak specifically? Septic system grading and backfill accounts for frost protection and seasonal ground movement patterns


Invest in a septic system that protects your property and the environment. Contact us today to schedule septic system installation & excavation in Omak, WA.