Sanitation System/Side Sewers contractors in Port Angeles, WA
Septic and side sewer contractors install and repair on-site sanitation systems and the sewer lines that connect buildings to the main. Washington currently lists 5 Sanitation System/Side Sewers contractors registered in Port Angeles.
Claimed and verified listings appear first.
Onsite Montrg & Insp (Omi) LLC
Sanitation System / Side Sewers · Port Angeles, WA
License #ONSITMI914BM · $15,000 bond
Sound Septic Services
Sanitation System / Side Sewers · Port Angeles, WA
License #SOUNDSS917OQ
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Built from Washington State L&I public records, updated Aug 15, 2026. Subser doesn't do star ratings or reviews — just verified records.