Sewage backups can expose Spokane properties to contaminated water, damaged building materials, and serious sanitation concerns. In Spokane County, sewage intrusions may involve Category 3 black water containing harmful pathogens, making proper protective equipment, containment, and controlled cleanup essential. Homes in Browne's Addition and the Perry District with older plumbing may experience backups during heavy spring snowmelt or winter freezes that damage pipes. Our sewage damage cleanup service uses appropriate PPE, containment barriers, and air filtration to help protect occupants and limit the spread of contaminants. Crews may need to create controlled access openings rather than risk spreading contamination through HVAC systems.
After contaminated water is removed, affected areas are cleaned and treated with appropriate EPA-registered disinfectants. We use moisture mapping and measurement and thermal imaging to locate hidden moisture in subfloors, behind cabinets, and within other building materials. Riverfront Park-area properties with elevated groundwater concerns may experience sewage or moisture migration beneath slabs, potentially requiring specialized drying or selective demolition. Dehumidifiers and air movers remain in place as needed while technicians monitor drying progress and assess whether affected materials are suitable for restoration or require removal. Our structural drying service helps address residual moisture, while selective demolition may be necessary when contaminated or water-damaged materials cannot be safely restored.
Throughout the cleanup, technicians document the work with photos and moisture logs to support insurance records and help track restoration progress. Waste handling and disposal are managed according to applicable requirements. Properties near Manito Park with finished basements may need additional separation between clean living spaces and contaminated work zones using barriers and air-filtration equipment. Our sewer backups cleanup service helps address wastewater intrusion, while a water damage inspection can help identify the full extent of affected areas.
We provide sewage cleanup support for properties across Spokane County, including Browne's Addition and the Perry District. Work is performed during posted hours from the Northwest Blvd location, with same-day response available Monday through Friday, 8 a.m. to 6 p.m., and Saturday, 9 a.m. to 2 p.m., for active leaks, subject to availability.
Sewage Damage Cleanup Services We Offer
✓Black Water Extraction
Rapid removal of contaminated sewage from basements and crawlspaces using truck-mounted pumps and containment barriers to prevent cross-contamination in South Hill and Downtown Spokane homes.
✓Biohazard Remediation
Full sanitization and disposal of pathogen-laden materials following EPA protocols, including multiple disinfectant applications and clearance testing before any reconstruction begins.
✓Contaminated Drywall Removal
Safe cutting and disposal of affected wallboard below the water line, with proper bagging and transport to approved Spokane County facilities to eliminate hidden bacterial reservoirs.
✓Subfloor Drying and Treatment
Targeted drying of plywood and joists after sewage exposure using commercial dehumidifiers and air movers, preventing long-term structural damage in older Perry District properties.
✓Sewage Odor Elimination
Application of hydroxyl generators and enzyme treatments to neutralize persistent odors that remain after physical cleaning in finished basements near Spokane Falls.
Sewage Damage Cleanup Cost in Spokane, WA
| Service | Typical Range | What Affects It |
|---|---|---|
| Initial Assessment And Containment | Free | During business hours from our Northwest Blvd location |
| Small Area Sewage Cleanup | $900–$1,800 | Limited to one room or under 200 sq ft with minimal demolition |
| Basement Sewage Remediation | $2,200–$4,500 | Includes extraction, disposal, drying, and sanitization in South Hill or similar homes |
| Odor Removal Add-On | $350–$650 | Hydroxyl or enzyme treatment after main cleanup |
Ranges are typical for Spokane, WA and confirmed with an exact written quote before any work starts.
How it works
- 1
On-Site Assessment
Technicians inspect the affected area, identify the contamination source, and map moisture migration while wearing full PPE.
- 2
Containment And Extraction
Plastic barriers and negative air are set up, followed by immediate removal of standing sewage and heavily contaminated materials.
- 3
Sanitization And Drying
EPA disinfectants are applied in stages, then industrial drying equipment removes remaining moisture from structural components.
- 4
Verification And Clearance
Moisture readings and visual inspection confirm the space meets dryness standards before any rebuilding or homeowner re-entry.
Pricing
Project costs vary by affected square footage, depth of contamination, and required demolition; on-site assessment provides accurate pricing.