Trenchless Sewer Replacement New Sewer Line — Without Destroying Your Yard
Pipe bursting technology replaces your failed sewer line through two small access pits — most Redwood City jobs done in 1–2 days
Why Peninsula Homeowners Choose Trenchless
The sewer line gets replaced — the driveway, garden, and mature trees stay exactly where they are
A failed sewer lateral used to mean one thing: a backhoe trench from your house to the street, cutting through whatever stood in its path. On Peninsula lots, that path usually includes a concrete driveway, decades-old landscaping, irrigation systems, or a neighbor-shared fence line. Trenchless sewer replacement eliminates nearly all of that destruction. We excavate two compact access pits, and everything between them happens underground.
This matters in our service area more than most. Homes in Redwood City, San Carlos, Menlo Park, and Palo Alto built before the 1980s typically have clay or cast iron sewer laterals — and many mid-century homes have Orangeburg pipe, a tar-impregnated fiber pipe that deforms and fails with age. These materials are routinely at or past the end of their service life. When they fail, trenchless replacement installs a seamless, root-resistant HDPE line rated for 50+ years, often in less time than restoring a trenched yard would take.
Trenchless Replacement Benefits
- Driveways, patios, and landscaping preserved — no open trench
- Most jobs completed in 1–2 days, inspection included
- New seamless HDPE pipe — joint-free, so roots can't get back in
- Can upsize pipe diameter during bursting (4" to 6") if needed
- 10 year warranty on new sewer lines
Not sure whether trenchless or traditional excavation fits your situation? Our guide comparing trenchless vs. traditional sewer replacement breaks down when each method makes sense.
How Pipe Bursting Replaces Your Sewer Line
Old pipe out, new pipe in — through the same underground path
1. Camera Inspection & Line Locating
We start with a free sewer camera inspection to confirm the pipe's path, depth, condition, and failure points. This tells us whether bursting is viable and exactly where to place the access pits.
2. Permits & Utility Marking
We pull the city permit, schedule the required inspection, and have all underground utilities marked before any digging. Every Peninsula city requires permitted, inspected sewer lateral work — unpermitted sewer replacement can derail a future home sale.
3. Access Pits & Pipe Bursting
Two compact pits are excavated — typically one at the house cleanout and one near the property line or city connection. A cable pulls the bursting head through the old line, fracturing it outward while drawing the new fused HDPE pipe into place behind it.
4. Connections, Inspection & Restoration
We connect the new line at both ends, the city inspector signs off, and we backfill and restore the pit areas. You're left with a brand-new sewer lateral and a yard that looks like nothing happened.
Signs Your Sewer Line May Need Replacement
One backup is a clog. A pattern is a pipe problem. If you're experiencing recurring main-line backups, multiple slow drains at once, sewage odors in the yard, unusually lush patches of lawn over the sewer path, or foundation-area dampness, your lateral may be cracked, root-invaded, or collapsed. A camera inspection settles the question in under an hour — and if the line is restorable, we'll recommend sewer line repair or hydro jetting instead of replacement. We replace pipes that need replacing, not pipes that can be fixed.
Selling or buying a home? Several Peninsula cities require sewer lateral inspection or certification at point of sale. If a transaction inspection has flagged your lateral, our sewer lateral replacement service handles the compliance side — permits, inspection, and certificates — along with the pipe itself.
Trenchless Sewer Replacement FAQs
How does trenchless sewer replacement work?
The most common method we use is pipe bursting: a hardened bursting head is pulled through your old sewer line, fracturing the failed pipe outward into the surrounding soil while simultaneously pulling a brand-new HDPE pipe into its place. The work happens through two small access pits — one at the house, one near the property line — instead of a trench running the length of your yard.
How long does trenchless sewer replacement take?
Most residential trenchless sewer replacements on the Peninsula are completed in one to two days, including the access pits, the pipe installation, city inspection, and backfill. A comparable open-trench replacement often takes three to five days plus additional time for landscape and hardscape restoration.
Is trenchless more expensive than traditional excavation?
The trenchless line item is often slightly higher than digging, but the total project cost is frequently lower once you account for what excavation destroys: driveways, walkways, mature landscaping, irrigation, and fences all cost real money to restore. When a sewer line runs under concrete or established gardens — common in Redwood City and Atherton properties — trenchless usually wins on total cost.
Can every sewer line be replaced trenchlessly?
Most can, but not all. Severely collapsed lines that a cable can't pass through, lines with major sags (bellies) that need regrading, or pipes with too many tight bends may require open excavation for part or all of the run. Our camera inspection determines this up front, and we quote both options when both are viable so you can compare.
Does trenchless sewer replacement require permits in Redwood City?
Yes. Sewer lateral replacement requires a permit and city inspection in Redwood City and every Peninsula city we serve. As a licensed contractor (CSLB #947961), we pull the permits, schedule the inspections, and handle the paperwork — including sewer lateral compliance certificates where your city requires them.
Trenchless Sewer Replacement in Redwood City & the Bay Area
Call (650) 269-0190 — Free Camera Inspection
Find out exactly what's wrong with your sewer line before spending a dollar on it. We'll show you the camera footage, explain your options, and give you upfront pricing on trenchless and traditional methods.
Licensed, bonded, and insured sewer replacement specialists serving the Peninsula since 2010. CSLB #947961.
Related Sewer Services
Pipe repairable instead?
Sewer line repair →Replacing for a home sale?
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