Sanitation System/Side Sewers contractors in Washington
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 225 Sanitation System/Side Sewers contractors registered statewide.
4 Sight Septic INC
Sanitation System / Side Sewers · Olalla, WA
License #4SIGHSS933DA · $15,000 bond
A-1 Sewer Service
Sanitation System / Side Sewers · Yakima, WA
License #1SEWESS853JM · $15,000 bond
A-Mac Septic & Excavation
Sanitation System / Side Sewers · Kingston, WA
License #MACSESE772R9 · $15,000 bond
Aa Quality Septic LLC
Sanitation System / Side Sewers · Bellingham, WA
License #AAQUAQS792DA · $30,000 bond
Abc Septic Monitoring LLC
Sanitation System / Side Sewers · Everett, WA
License #ABCSESM858CP · $15,000 bond
Above All Construction INC
Sanitation System / Side Sewers · Lake Stevens, WA
License #ABOVEAC052Q7 · $15,000 bond
Action Jackson Drn Cln/Plb LLC
Sanitation System / Side Sewers · Edmonds, WA
License #ACTIOJD884M7 · $6,000 bond
Al-Pac Sewer Install/Rpr LLC
Sanitation System / Side Sewers · Auburn, WA
License #ALPACSI779KP · $15,000 bond
Alissi Construction INC
Sanitation System / Side Sewers · Bellingham, WA
License #ALISSCI935QF
All 'N All Septic
Sanitation System / Side Sewers · Quilcene, WA
License #ALLNANA775BU · $15,000 bond
All Around Septic LLC
Sanitation System / Side Sewers · Bellingham, WA
License #ALLARAS837LE · $15,000 bond
All County Septic Service INC
Sanitation System / Side Sewers · Mukilteo, WA
License #ALLCOCS825D2 · $15,000 bond
Allcounty Operations INC
Sanitation System / Side Sewers · Keyport, WA
License #ALLCOOI963DT · $15,000 bond
Alltest Operations And Maint
Sanitation System / Side Sewers · Port Orchard, WA
License #ALLTEOM931J5 · $15,000 bond
American Septic & Pump
Sanitation System / Side Sewers · Liberty Lake, WA
License #AMERISP753CJ · $15,000 bond
American Septic And Pump
Sanitation System / Side Sewers · Liberty Lake, WA
License #AMERISP955O8 · $15,000 bond
Aqua Test INC
Sanitation System / Side Sewers · Maple Valley, WA
License #AQUATTI921PH · $15,000 bond
Aquarius Pump CO INC
Sanitation System / Side Sewers · Seabeck, WA
License #AQUARPC776DZ · $15,000 bond
Aspen Rentals INC
Sanitation System / Side Sewers · Angleton, WA
License #ASPENRI755D5 · $30,000 bond
Bainbridge Septic Tnk Pmpg INC
Sanitation System / Side Sewers · Bainbridge Island, WA
License #BAINBST830DA · $15,000 bond
Basin Septic Services INC
Sanitation System / Side Sewers · Moses Lake, WA
License #BASINSS914M9 · $15,000 bond
Beecher A Conn Backhoe Service
Sanitation System / Side Sewers · Ravensdale, WA
License #BEECHCB144D6 · $15,000 bond
Bison Septic Pumping LLC
Sanitation System / Side Sewers · Burbank, WA
License #BISONSP850BO · $15,000 bond
Blankenship Equip Repair INC
Sanitation System / Side Sewers · Auburn, WA
License #BLANKER902L9 · $15,000 bond
Cities with Sanitation System/Side Sewers contractors
Built from Washington State L&I public records, updated Aug 13, 2026. No star ratings or reviews — verification only.