Spokane, Spokane County Washington
Installation and drainfield work in Spokane County.
- Septic Installation
- Drainfield Services
- Septic Inspection
- Commercial
Demo listing · Last verified Mar 2026
Drainfield Services
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Evergreen Onsite Systems (Demo)
Verified detailsVancouver, Clark County Washington
Emergency service
Repairs, drainfields and installs in SW Washington.
- Septic Repair
- Drainfield Services
- Septic Installation
- Commercial
Demo listing · Last verified Jan 2026
Panhandle Onsite Systems (Demo)
Verified detailsHayden, Kootenai County Idaho
Installation and alternative treatment systems in north Idaho.
- Septic Installation
- Alternative Treatment Systems
- Drainfield Services
- Commercial
Demo listing · Last verified Jan 2026
Treasure Valley Septic (Demo)
Verified detailsKuna, Ada County Idaho
Acreage septic installs and repairs near Boise.
- Septic Installation
- Septic Repair
- Drainfield Services
- Commercial
Demo listing · Last verified Mar 2026
Tualatin Valley Septic Co. (Demo)
Verified detailsBanks, Washington County Oregon
Pumping, repairs and drainfield work west of Portland.
- Septic Pumping
- Septic Repair
- Drainfield Services
Demo listing · Last verified Feb 2026
Sandy, Clackamas County Oregon
Emergency service
- Drainfield Services
- Septic Installation
- Septic Repair
Demo listing · Last verified Jan 2026
Olympia, Thurston County Washington
- Septic Repair
- Drainfield Services
Demo listing · Last verified Jan 2026
Listing details come from public records and provider submissions and can go out of date. Always confirm licensing, bonding, insurance, availability and pricing directly with the contractor before hiring. Listings marked “Demo” are fictional sample data.