Navigating San Francisco's Sewer Lateral Requirements
San Francisco's Private Sewer Lateral (PSL) compliance program makes sewer line condition a critical issue for every property owner. Whether you're selling your home, dealing with recurring backups, or received a notice from SFPUC, understanding your lateral's condition and your options is essential.
The city's combined sewer system — carrying both stormwater and sewage in the same pipes — puts additional stress on private laterals. Homes in Excelsior, Ingleside, Crocker-Amazon, and Outer Mission often have original vitrified clay or cast iron laterals that are 80-100+ years old and approaching (or past) their functional lifespan.
Sewer Line Services for SF Properties
San Francisco Sewer Line Challenges
Combined System Backflow
During heavy rain, SF's combined sewers can overload — sending water back up private laterals. Backwater valves are essential protection, especially for basement-level units in the Sunset and Excelsior where gravity works against you.
Under-Street Laterals
San Francisco property owners are responsible for their lateral all the way to the city main — including under sidewalks and streets. Repairs require SFPUC permits, traffic control, and restoration of city property — making trenchless options highly attractive.
Point-of-Sale Compliance
Selling your SF home? The PSL program requires a passing camera inspection or completed repairs before transfer. We help sellers get compliant efficiently and help buyers understand what they're inheriting.
Our Sewer Line Service Process
Camera Inspection & Report
HD camera survey documents your entire lateral from cleanout to city main. We produce a report suitable for SFPUC compliance or real estate transactions.
Options & Pricing
Based on findings, we present repair options ranging from spot repair to full replacement, with trenchless alternatives where viable. Clear pricing, no surprises.
Permits & Execution
We handle SFPUC permits, DPW encroachment permits for street work, and coordinate with utilities. Work is completed to city standards.
Final Inspection & Certificate
Post-repair camera inspection confirms compliance. We submit documentation to SFPUC for your compliance certificate — closing the loop for real estate or city requirements.
Get Your San Francisco Sewer Lateral Compliant
From inspection to repair to SFPUC certification — GB Plumbing handles the entire process for San Francisco property owners.
(650) 235-6443Our Happy Clients
Real people. Real results. See why homeowners across the San Francisco Bay Area trust GB Plumbing for all their plumbing needs.
🇺🇸 🇧🇷 🇪🇸 We speak English, Portuguese and Spanish
"Needed PSL compliance to sell our home. GB got it inspected, repaired, and certified in under two weeks. Closing went smoothly."
— Excelsior Home Seller Google Review
"Trenchless lining saved us from digging up the sidewalk. Less mess, less time, less money. Excellent result."
— Ingleside Property Owner Google Review
"Backwater valve installation finally stopped the basement flooding during storms. Should have done this years ago."
— Outer Mission Resident Google Review
"Full lateral replacement done professionally. They handled all the SFPUC paperwork and permits. Stress-free experience."
— Crocker-Amazon Family Google Review
"Root damage was worse than expected but they gave us options. Spot repair saved thousands compared to full replacement."
— Sunset District Homeowner Google Review
"Sewer backed up on Thanksgiving. They came out, cleared it, then scheduled the permanent repair. Above and beyond."
— Glen Park Customer Google Review