Sanitation System/Side Sewers contractors in Seattle, 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 7 Sanitation System/Side Sewers contractors registered in Seattle.
Emerald City Sewer
Sanitation System / Side Sewers · Seattle, WA
License #EMERACS771J5 · $15,000 bond
Jafco Company LLC
Sanitation System / Side Sewers · Seattle, WA
License #JAFCOCL833PW · $30,000 bond
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Other trades in Seattle
- General (6,158)
- Painting/Wallcovering (383)
- Landscaping (238)
- Floor Covering and Counter Tops (129)
- Handyman (121)
- Cabinets, Millwork and Finish Carpentry (106)
- Residential (73)
- Tile, Ceramic, Mosaic, Natural and MFG Stone (63)
- Plumbing (61)
- Heating/Vent/Air-Conditioning and Refrig (HVAC/R) (52)
- Limited Energy (50)
- Concrete (48)
Built from Washington State L&I public records, updated Aug 14, 2026. No star ratings or reviews — verification only.