Sanitation System/Side Sewers contractors in Spokane, 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 3 Sanitation System/Side Sewers contractors registered in Spokane.
Downriver Septic LLC
Sanitation System / Side Sewers · Spokane, WA
License #DOWNRSL789C2 · $15,000 bond
Rich Ulias Excavation LLC
Sanitation System / Side Sewers · Spokane, WA
License #RICHUUE805Q1 · $15,000 bond
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Other trades in Spokane
- General (4,566)
- Painting/Wallcovering (256)
- Floor Covering and Counter Tops (182)
- Landscaping (88)
- Concrete (86)
- Framing and Rough Carpentry (69)
- Tile, Ceramic, Mosaic, Natural and MFG Stone (59)
- Heating/Vent/Air-Conditioning and Refrig (HVAC/R) (59)
- Plumbing (58)
- Residential (57)
- Cabinets, Millwork and Finish Carpentry (54)
- Dry Wall (49)
Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.