What Is Trenchless Sewer Repair?
Trenchless sewer repair is an umbrella term for methods that fix or replace damaged sewer lines without traditional open excavation. Instead of digging a trench the entire length of the pipe, our crew accesses the line from just one or two small entry points — often existing cleanouts. This means no torn-up landscaping, no broken concrete driveways, and no weeks of construction. In Los Angeles — where mature landscaping, pool decks, and hardscaped yards are common — trenchless methods can save homeowners $5,000–$20,000 in landscape restoration costs alone.
Method 1: Pipe Lining (CIPP)
Cured-in-place pipe lining (CIPP) creates a new pipe inside your existing damaged pipe. A flexible liner saturated with resin is pulled through the existing pipe and inflated against the pipe walls. UV light or steam then cures the resin, creating a smooth, seamless new pipe inside the old one. CIPP is ideal for cracked, corroded, or root-invaded pipes where the pipe structure is still largely intact. It effectively seals cracks, eliminates root re-entry points, and restores full flow capacity. CIPP lining typically costs $80–$250 per linear foot in LA, vs. $50–$150/ft for traditional open-cut replacement — but that gap narrows or reverses when you account for restoration costs.
Method 2: Pipe Bursting
Pipe bursting replaces your existing sewer line entirely — without digging a trench. A hydraulic head is pulled through the old pipe, fracturing it outward while simultaneously pulling the new HDPE pipe in behind it. Pipe bursting is used when the existing pipe is too deteriorated for lining, or when you want to upgrade to a larger diameter pipe. It requires access at both ends of the line. Cost in LA typically runs $60–$200 per linear foot.
Trenchless vs. Traditional Excavation: Which Is Right for You?
Trenchless methods are ideal when: you have mature trees, pools, landscaping, or concrete decks over the pipe. Traditional open-cut is sometimes better when: the pipe is severely misaligned, the depth is very shallow, or a large section is completely collapsed. The right choice depends on a camera inspection of your specific line. Plumbing 405 performs free camera inspections and will recommend the most cost-effective solution for your property — no upselling.