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Sewer Stoppages and Replacement in San Francisco, CA
Clear Sewer Problems And Replace Failing Lines
San Francisco Public Works draws the line at the property trap: everything past it, out toward the main, falls under a side sewer permit, and the contractor doing that work has to hold a Class A, a C-42, or both a C-36 and a C-12 license. Malcolm Plumbing & Mechanical works on both sides of that trap, clearing stoppages, cutting roots, and replacing collapsed clay and cast-iron laterals for property owners in San Francisco, CA and nearby Peninsula cities.
Our approach starts with a camera, not a guess, because a line that backs up twice a year and a line that has separated at a joint need different answers. We have handled 35+ years of Bay Area sewer work, we are licensed and insured, and every job carries free estimates and a one-year warranty on labor. Financing is available for full replacements. Send us the details through our contact page and we will schedule a look.
Sewer Services We Provide
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Main Line Stoppage Clearing
Multiple fixtures backing up at once means the blockage sits in the main run, not a single trap. Cable machines with cutting heads sized to the pipe reopen the line, and a camera pass afterward confirms what caused it.
Kitchen and Branch Drain Clearing
Grease, soap film, and food solids narrow branch lines long before they close them entirely. Clearing at the nearest access point protects the fixture connection, and we check the trap arm and vent while the line is open.
Root Cutting and Removal
Roots enter through joints and hairline cracks, then thicken into a mat that traps everything passing through. Mechanical cutters shear them back to the pipe wall, and footage from the camera shows whether the host defect needs repair too.
Sewer Lateral Replacement
Bellied, offset, or fractured laterals stop responding to cleaning, and repeated clearing only postpones the failure. Full replacement in modern pipe restores grade and diameter, with permits pulled, excavation bonded, and street restoration handled to the standards inspectors expect.
Spot Repairs and Section Replacement
Not every defective line needs replacing end to end. When the camera shows one broken section in otherwise sound pipe, we open a targeted excavation, cut out the damage, and tie in new pipe with proper couplings and bedding.
Cleanout Installation
Buildings without an accessible cleanout force every future service call to start with removing a toilet. Adding one at the right point gives direct access for cables, jetters, and cameras, and it cuts response time on the next emergency.
See Our Sewer Work
See how Malcolm Plumbing & Mechanical handles sewer stoppages, repairs, and replacement projects with dependable workmanship across San Francisco, CA.
FAQ's
How do I know if the blockage is in my lateral or the city main?
If every fixture in the building drains slowly and the lowest one backs up first, the problem is almost certainly in your lateral. A camera run from the cleanout settles it quickly by showing exactly where flow stops.
How long does a sewer line replacement usually take?
Most residential laterals are replaced in 1 to 3 days once permits are in hand, depending on depth, length, and whether the work crosses a sidewalk. Street restoration and final inspection can add time after the pipe itself is finished.
Can a sewer line be replaced without digging up the yard?
Trenchless methods work when the existing pipe holds its alignment and has not collapsed. Pipe bursting and lining reduce excavation to access pits at each end. A camera survey determines whether your line is a realistic candidate for either method.
What does a bellied sewer line mean?
A belly is a low spot where the pipe has lost its downward grade, usually from settling soil or poor bedding. Solids collect in the standing water and cause repeated backups that cleaning relieves only temporarily before returning.
How often do sewer lines need to be cleaned?
Lines in good condition rarely need attention more than every few years. Older clay laterals near mature trees often do better on an annual schedule. Malcolm Plumbing & Mechanical sets that interval from camera evidence for buildings across San Francisco, CA.
What materials are used for sewer line replacement today?
PVC and ABS handle most residential replacements, while cast iron still appears where code or building conditions call for it. The choice depends on depth, load above the pipe, connection to the existing main, and what inspectors will approve.
Will my sewer replacement need a city inspection?
Yes. Work past the trap toward the main is inspected before the trench is closed, so the pipe, bedding, and connection all get verified while they are still visible. Backfilling early means opening the excavation again at your cost.
What happens if a sewer line collapses under the sidewalk?
Sidewalk collapses need coordination with the city because the work sits in the public right of way. Malcolm Plumbing & Mechanical handles the permit, the bonded excavation, and the pavement restoration in San Francisco, CA with 35+ years of doing exactly this.
Why Choose Us for Sewer Stoppages and Replacement
Diagnosis Before Excavation
You get camera footage and a marked location before anyone breaks concrete, so you know exactly what you are paying to fix. That removes the guesswork that turns a modest repair into an open trench across the whole yard.
One Crew From Clearing to Replacement
Nothing gets handed off to a second company midway through. The same team that opens the blockage carries the job through excavation, tie-in, and backfill, which keeps accountability in one place if anything needs revisiting months or years later.
Permit and Bond Handling Included
Side sewer work carries paperwork most owners never want to touch: permit applications, excavation bonding, utility notification, and inspection scheduling. We carry that administrative load ourselves so your project moves without stalling at a counter downtown for weeks.
Honest Repair Versus Replace Calls
Plenty of lines have years left in them and only need a cleaning schedule. We will tell you when that is the case rather than selling a replacement, and we will be equally direct when the pipe is genuinely finished.
Property Protection During the Work
Sewer work is messy by nature, so containment matters. Floors get covered, excavation spoil stays controlled, and the site gets cleaned and restored at the end, which is the part most owners remember long after the pipe is buried.
Warranty You Can Point To
Every job leaves you with a one-year warranty on our labor and documentation of what was done. If something needs a second look, there is a written record instead of a conversation about who said what and when.
A Sewer Line You Stop Thinking About
There is a particular relief that comes with knowing the line under your building is sound, and most owners only appreciate it after living through a backup on a holiday weekend. Malcolm Plumbing & Mechanical brings camera evidence, permit handling, and a crew that knows how these systems fail across San Francisco, CA, whether your fix takes an hour with a cable machine or 3 days with an excavator. We will show you the footage, explain the options in plain terms, and let you decide without pressure. Our contact page is the place to start, and the estimate costs nothing.
Why Choose Us
24/7 Emergency Plumbing
We provide 24-hour emergency plumbing services to help customers address urgent plumbing problems quickly. Our team is ready to respond when unexpected issues arise.
Comprehensive Plumbing Services
We handle a wide range of plumbing and mechanical needs, from sewer stoppages and hydro jetting to water heaters, boilers, fixtures, and general plumbing repairs. This allows us to provide convenient solutions for many different projects.
Experienced Sewer Solutions
We specialize in sewer camera inspections, pipe location, hydro jetting, stoppage removal, and sewer replacement. Our detailed approach helps us identify plumbing problems and determine the right solution.
Reliable Service & Repairs
We take pride in providing dependable workmanship and practical solutions for residential and commercial customers throughout San Francisco and surrounding areas. From water leaks and backflow systems to boilers and sewage ejectors, we are committed to getting the job done right.
Areas We Serve
San Francisco, CA
San Jose, CA
Oakland, CA
Fremont, CA
Hayward, CA
Sunnyvale, CA
Santa Clara, CA
Vallejo, CA
Concord, CA
Berkeley, CA
Richmond, CA
Antioch, CA
San Mateo, CA
Daly City, CA
San Leandro, CA
Redwood City, CA
Mountain View, CA
San Ramon, CA
Dublin, CA
Alameda, CA