Koehler Industries INCLicensed

Licensed septic contractor in Washington

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What this license covers

• Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.

How to verify this license

We publish the license details exactly as they appear in Washington's official licensing records; we do not vouch for the business itself. Before hiring, look up this license directly with the state, confirm it is still active, and ask for a current certificate of insurance.

Source: Snohomish Health District - Certified Pumpers, Installers & M&M Specialists, last checked 2026-08-19. Verify at the official source.