Can I repair my own sewer line?

Where the Line Sits

The distinction that matters is between clearing and repairing. Running a rented auger down an accessible cleanout to clear a soft blockage is ordinary homeowner maintenance, and how to unclog a sewer line without a plumber covers how far that goes and when to stop. Opening the ground and replacing pipe is construction work on a connection to public infrastructure.

In most jurisdictions, Colorado included, that second category requires a licensed plumbing contractor, a permit, and an inspection before the trench is backfilled. It is not a formality anyone enforces for its own sake: a lateral laid to the wrong fall, bedded on rubble, or jointed badly will fail, and it will fail buried under your yard where nobody can see it happening.

The Trench Is the Real Hazard

This is the part that deserves blunt language. Sewer laterals commonly run four to eight feet below grade, and an unshored trench deeper than five feet is genuinely lethal. Soil collapse is one of the most reliable killers in construction, a cubic yard of soil weighs comparably to a small car, and a partial burial to the chest is enough to prevent breathing. Walls that look stable fail without warning, particularly in the mixed fill and clay common around Front Range foundations, and most fatalities involve people who had dug similar holes uneventfully before.

Shoring, benching or sloping a trench properly is skilled work with its own equipment. If your repair is shallow enough to avoid all this, it is probably shallow enough that a contractor can do it in half a day.

The Things That Must Happen Before Any Digging

1. An 811 utility locate. Free, legally required, and takes a few days. Gas, electric, water and communications frequently share the corridor with a sewer lateral.
2. A camera inspection. Digging without knowing precisely where the fault is means digging in the wrong place, and that is the most common way a DIY attempt becomes expensive.
3. The permit, pulled before work starts. See do I need a permit to fix my sewer line; retroactive permits are worse than the original ones.
4. A realistic look at what happens if it goes wrong. The house has no drainage until the pipe is reconnected, and a half-finished trench is not a problem you can leave until the weekend.

There is a reasonable middle path: do the diagnostic work yourself, then buy only the work you cannot do. Get the line scoped, find out whether a spot repair will do, and get the footage in hand before accepting a quote. That is where the real saving sits, not in operating an excavator. Our sewer line repair service scopes before quoting, and if the ground is already wet with sewage, call (970) 499-0516 for emergency service rather than opening it up yourself.