Sewer backup: what to do first
A sewer backup carries bacteria into the house, so treat any standing sewage as a health hazard. Stop running water in sinks, tubs, washers and dishwashers, and do not flush. Keep children and pets out, and avoid walking through the water in bare feet.
Open windows if the smell is strong, and take photos for your insurance company. Our emergency line at (714) 750-8637 is open 24/7. Cleanup and sanitizing after a backup is a restoration job we do not provide.
What causes a sewer line to fail
The sewer lateral runs from the house to the city main. Roots enter at joints and cracks and thicken into a mat. Pipe can crack from ground movement or shift out of alignment so that water pools in a low spot called a belly. Old clay or cast iron can corrode or collapse.
Because Fountain Valley's housing boom came in the 1960s, many laterals are now over half a century old. That does not mean yours is failing, but it is a reason to run a camera when drains keep clogging.
Signs of a sewer line problem
These symptoms often appear before a full backup.
Multiple slow drains
Branch lines drain into one main, so trouble in the main shows up everywhere.
Sewage smell outdoors
A cracked line can leak into the soil and release odor near the cleanout.
Green or soggy patches
A leaking lateral can fertilize or saturate one stretch of lawn.
Repeated clogs
A clog that returns within weeks suggests roots or a damaged section.
Repair options
A spot repair replaces a short damaged section by digging down to it. Trenchless pipe lining inserts a resin-coated liner through the existing pipe and cures it into a new pipe-within-a-pipe, which can avoid digging up the yard. Full replacement is for pipes that have collapsed or are too damaged to line.
Each approach has trade-offs. Digging costs more in landscaping. Lining needs the pipe to be clear and relatively intact. Your plumber should show you the camera footage and explain why one option fits better.
Sewer repair methods compared
This table shows the usual trade-offs.
| Method | Best for | Trade-off |
|---|---|---|
| Spot repair | One localized crack or offset | Excavation at the repair point |
| Pipe lining | Long runs with cracks or root entry | Needs a pipe that is clear and not collapsed |
| Full replacement | Collapsed or severely damaged pipe | Most disruptive and costly |
| Cleaning only | Soft buildup with no damage | Clogs may return, see sewer line cleaning |
Sewage backing up?
Call the 24/7 line. We will tell you what to do while a plumber is on the way.
Camera inspection comes first
A camera on a flexible cable travels through the line and records what it sees. The plumber can mark the depth and location of problems so that a repair is aimed at the right spot. You can ask to see the footage.
Our sewer inspection page explains the process in detail, including inspections for buyers and sellers.
What sewer line repair costs
Costs vary widely with depth, length, access and method. You hear the price before work starts.
What moves the final number
Some policies cover sewer backups through an endorsement, and homeowner coverage for the pipe itself is uncommon. Check your policy. Call (714) 750-8637 for your real number.
Permits and standards for sewer work
Sewer repair follows the California Plumbing Code, based on the Uniform Plumbing Code (UPC), and digging in the yard or the street usually needs a city permit and an inspection. The Fountain Valley Building Division at 714-593-4429 can tell you what applies to your address.
City main or your lateral?
The city or the Orange County Sanitation District is generally responsible for the public sewer main, and the property owner is generally responsible for the lateral that serves the home. If every house on the street is backing up, call the city. If only your home is affected, the lateral is more likely the cause.
Ask the City of Fountain Valley what applies to your address before you commit to a large repair. A camera video helps show where the problem sits.
Common Questions
Yes. Call (714) 750-8637 at any hour. Stop water use right away so the backup does not spread.
If more than one fixture is affected, or if the lowest drains in the home back up first, the main line is the likely location.
Lining avoids trenches but requires a pipe that is intact enough. A camera tells the plumber which is possible.
It depends on your policy and on where the failure is. Ask your insurer, and ask the city if the public main may be involved.
Likely yes for excavation or replacement, but ask the Building Division at 714-593-4429 to confirm.
Cutting roots clears a line, but the roots return unless the entry point is repaired or lined.