Trenchless vs. Traditional Sewer Repair: How Orange County Homeowners Can Decide
Disclaimer: this is general information, not engineering advice. The right method depends on a camera inspection and a site visit by a licensed contractor.
Once a camera inspection shows your sewer lateral needs more than a cleaning, the question becomes how to fix it. There are three main approaches, and each fits different situations.
Pipe lining (CIPP)
A resin-soaked liner is pulled or inverted into the old pipe and cured in place, creating a new jointless pipe inside the old one. Fits: cracked or root-damaged clay and cast iron that still holds its shape. Limits: it cannot correct a belly (a sag), it slightly reduces the inside diameter, and branch connections must be reopened carefully. Pipe lining companies.
Pipe bursting
A bursting head is pulled through the old pipe, splitting it outward while dragging a new HDPE pipe in behind it. Fits: pipe that is too damaged to line, or where you want a brand-new pipe along the same path. Limits: needs access pits at both ends and room around the pipe; nearby utilities and tight bends can rule it out. Pipe bursting companies.
Open-trench replacement
The traditional method: dig along the line, remove the old pipe and lay new PVC or ABS. Fits: collapsed lines, deep bellies, rerouting, and short runs under soil. Limits: surface restoration of concrete, pavers and landscaping can cost as much as the plumbing. Sewer line replacement companies.
Quick comparison
| Lining | Bursting | Open trench | |
|---|---|---|---|
| Digging | Minimal, usually at a cleanout | Two access pits | Whole run |
| Fixes sags | No | Partly | Yes |
| Result | New pipe inside old | New pipe on same path | New pipe, any path |
| Restoration cost | Low | Low to moderate | Can be high |
Questions to ask
- Can you show me on the video why this method fits my pipe?
- How long is the run, how deep, and how many access points will you need?
- Does the price include the permit, cleanouts and restoration?
- What warranty do you give in writing?
Orange County companies with the Trenchless badge are listed on the trenchless sewer repair page. Prices: see the cost guide.