Sewage is grossly contaminated (Category 3) water. A backup calls for professional cleanup and a plumber to fix the cause. Here's how that plays out in Santa Rosa, what to do right now, and how to reach an independent, licensed local provider. Call (628) 336-1777 any time, or use the form on this page.
Sewage backup cleanup in Santa Rosa: what we see
Santa Rosa's older central neighborhoods have older sewer laterals, often under big street trees whose roots work into pipe joints. A backup into the house calls for a plumber for the cause and professional cleanup for the mess.
The local picture
House age and sewer laterals. The age of the house is a good guide to the age of the lateral. Santa Rosa has early-1900s homes in the central neighborhoods, mid-century ranch homes, and newer homes rebuilt in Coffey Park, Fountaingrove and Skyhawk after the 2017 and 2020 fires.
Lot, slope and trees. Long laterals, steep runs and big trees all raise the odds of trouble. Santa Rosa spans flat valley floor on the Santa Rosa Plain rising to hillside neighborhoods on the east and northeast.
Neighborhoods include downtown and the central neighborhoods, Coffey Park, Fountaingrove, Skyhawk, Bennett Valley, Rincon Valley and Roseland. Conditions vary from street to street, so a provider should look at your specific home rather than assume.
What to do right now
- Keep everyone, especially children and pets, out of affected areas.
- Stop using water: no flushing, showers, dishwasher or laundry.
- Don't touch sewage without boots, gloves and eye protection.
- Photograph the damage for insurance.
- Call a plumber for the cause and a restoration provider for cleanup.
Want a local pro to take a look?It's free for homeowners and there's no obligation.
Santa Rosa checklist
- Find your sewer cleanout so a plumber can reach the lateral quickly.
- Have the lateral camera-inspected if you have big trees and an older home.
- Keep grease and wipes out of drains.
- Check whether your policy has a sewer or water backup endorsement.
Local resources for Santa Rosa
- Permits: City of Santa Rosa
- Emergency alerts: SoCoAlert, the County's free notifications
- Sandbags: Sonoma County sandbag locations, updated during weather events
- Contractor licenses: CSLB license check
How a provider handles it
Cleanup involves containment, extraction, removal of porous materials the sewage touched, cleaning and disinfection of hard surfaces, and documented drying before any rebuild. For the full picture, read our complete guide and the deep dive After a flood: cleanup safety. We also have a storm-season article: How to use sandbags.
Before you hire anyone, check the license on the CSLB site. Here's how we vet providers.
Dealing with this right now?Tell us what's happening and we'll connect you with an independent local provider.
More for Santa Rosa
- Water damage in Santa Rosa: our full local page
- Sewage backup cleanup service
- Storm runoff and creek flooding in Santa Rosa: our in-depth local guide
- Burst pipe water damage in Santa Rosa
- Crawlspace flooding in Santa Rosa
- Storm and flood damage in Santa Rosa
- Appliance and water heater leaks in Santa Rosa
- Same problem nearby: sewage backups in Rohnert Park & Cotati, sewage backups in Windsor, sewage backups in Sebastopol, sewage backups in Glen Ellen & Kenwood
- Sewage backup cleanup in every Sonoma County town
Sources
- SoCoAlert sign-up
- Sonoma County sandbag locations
- FEMA Flood Map Service Center
- CDC: flood safety
- CSLB license check
Sources checked October 18, 2026.
Frequently asked questions
Who do I call for a sewer backup in Santa Rosa?
The city's sewage emergency line is (707) 543-4200, or (707) 543-3805 after hours. If the problem is on your side of the line, call a plumber.
Does homeowners insurance cover sewage backups?
Often only with a specific water backup endorsement. Check your policy.
Can I clean it myself?
Most sewage backups call for professional cleanup because of contamination. See categories of water.