When a sewer lateral fails along most of its length, the fix is open-cut excavation: a trench from the street to the house, new pipe, and full surface restoration. Your lateral is the pipe that carries waste from your house out to the city main, and when it’s failing end to end, patching one spot won’t hold. Here’s what a full sewer line repair actually involves, from start to finish.
If you’ve had repeated backups, a soggy patch in the yard, or sewage odors that come back a few weeks after a cleanout, you’re dealing with something more than a clog. A snake-and-clear call buys time when the problem is isolated. When the pipe itself is failing along its length, it doesn’t.
Sewer lateral replacement is an excavation job. It starts at the street, runs through your yard, and connects at the house. That’s the full scope, and it’s what we do.
If you’re past the point of waiting, request a sewer line repair estimate or call us directly at (970) 403-2787.
What a full sewer lateral replacement includes
A full sewer lateral replacement means open-cut excavation from the city main tap at the street, running a new line through the yard and under the driveway, and connecting to the building cleanout, with complete surface restoration including asphalt, sidewalk, curb, and gutter. The cleanout is the access point on your line near the house. This is an excavation job, not a drain cleaning call.
Why homeowners end up needing a full sewer line replacement
Signs your lateral is failing
The call usually comes after the same problem has shown up two or three times. Backups in the basement drain, slow toilets throughout the house, a patch of grass that stays wet, or an odor that returns within weeks of a cleanout. Each service call fixes a symptom, not the pipe.
What causes a full-length failure
When a lateral is failing along most of its length, spot repair doesn’t hold. The damage is too distributed. Pipe age, root intrusion that runs the full length of the line, ground movement, and offset joints that no liner can correct are the most common culprits. Hard rock is common in this part of Southwest Colorado, which affects how the dig gets planned and how long it takes. Once the damage spreads across the whole run, full sewer line replacement is the only fix that lasts.
Who is responsible for the sewer lateral in Durango
Where the city’s responsibility ends and yours begins
This is a question most homeowners haven’t thought about until something goes wrong. In most jurisdictions, the property owner is responsible for the sewer lateral from the building all the way to the connection at the city main. That includes the portion running under the street.
The city typically maintains the main itself. Everything on your side of that connection point is yours to maintain and repair. That general rule holds in most municipalities, though you’ll want to confirm the exact boundary with your local utility department for your specific property.
What that means for repair costs
The practical implication is straightforward. If the lateral fails anywhere between your cleanout and the tap at the main, the repair cost falls on you. That’s why you need a contractor who can handle the complete run, not just the section in your yard.
For sewer line repair in Durango, we cover the full lateral from the tap at the main to the building connection. You don’t need separate contractors for the street portion and the yard portion. One crew does the whole job.
The sewer line repair process: a phase-by-phase breakdown
Mike Zarlingo founded Animas Excavating in 2018. He says he “cut my teeth in this business doing sewer line repair,” and that background shows in how the work gets planned and explained before a shovel ever hits the ground. Here’s what each phase looks like on a real job.
Phase 1: Utility locating and job scoping
Before any excavation starts, every utility in the work zone gets located. In Colorado, that means contacting 811 before any dig. It’s a regulatory requirement, and the 811 notification triggers a locate process where utility companies mark gas, electric, water, and telecom lines in the work area.
Job scoping runs alongside the location. We need to understand the full pipe route, how deep the lateral runs, and what surface features sit above it. In Durango, hard rock in the path of the trench changes how the work gets planned, what equipment is needed, and how long the job takes. Getting this right before breaking ground prevents a lot of problems later, and it’s the part of the job we’ll walk you through first.
Phase 2: Cutting and opening the trench
Once utilities are marked and the route is mapped, we cut. The trench follows the lateral from the building cleanout out to the street, and on most sewer excavation jobs in Durango, CO, that trench goes into the street to reach the city main. That means cutting asphalt.
The equipment we use depends on what’s in the ground. In areas where hard rock runs shallow, the dig takes longer and calls for different tooling than a straight soil trench. The trench has to be opened cleanly, at the right width and depth for the work ahead. There’s no shortcut on this step.
Phase 3: Removing the old pipe and installing the new lateral
Once the trench is open, the old pipe comes out. What we find at this stage is often worse than what any pre-dig inspection showed. Collapsed sections, root-filled joints, pipe that’s crumbled or offset. These show up regularly, and homeowners are usually surprised by the condition.
New pipe goes in at the proper depth and slope for drainage. Pipe depth accounts for the freeze-thaw conditions in Southwest Colorado, where ground that freezes and thaws repeatedly puts stress on buried lines, so proper burial depth matters for long-term performance. We tap into the city main at the street connection point, make the connection at the building cleanout, and verify the run is correct before closing the trench.
Phase 4: Proper backfill and compaction
This is where a lot of sewer jobs go wrong after the pipe is in. Mike is direct about it. The work includes “backfilling with special flow fills and special backfills,” and that matters because not every backfill material performs the same way under a street or a driveway.
Voids left in the trench settle over time. Settlement causes surface failure, cracked asphalt, and in some cases stress on the new pipe itself. The wrong backfill materials compact unevenly, and what looked like a finished job starts showing problems six months later. What goes back in the trench is just as important as what came out.
Phase 5: Surface restoration
We don’t leave a patched trench for someone else to finish. Surface restoration is part of the scope on every job. That means asphalt cutting and patching in the street, sidewalk repair, and curb and gutter restoration where the work required it. Homeowners dealing with a broken sewer line shouldn’t have to manage a separate paving contractor or a concrete crew after the excavation crew leaves. We handle the complete civil restoration, so the property comes back together as a single job, not a series of handoffs.
If a sewer problem has you stuck, request a sewer line repair estimate or call (970) 403-2787 and we’ll talk through what your line needs.
Open-cut excavation: why this is the right method for full-line replacement
How open-cut excavation works
Open-cut excavation means exactly what it sounds like. We open a trench along the full route of the lateral, remove the old pipe, and install new pipe. Animas is an open-cut excavation contractor, and this is how we do full lateral replacements.
When trenchless lining isn’t the answer
Some contractors offer trenchless lining as an alternative method for rehabilitating existing pipe. That approach works in certain situations where the pipe has enough structural integrity to accept a liner. But pipe that’s collapsed, severely offset, or damaged throughout its length can’t be lined effectively. Root intrusion that runs the full length of the run isn’t solved by a liner. Grade problems, meaning sections of pipe that have lost proper slope and hold standing wastewater, call for correcting the pipe’s position, not coating the inside of the existing one.
When the lateral needs to be fully replaced, open-cut excavation is the method. You get new pipe, properly set, at the right depth and slope, with full verification before the trench closes.
For a look at our full range of excavation services, including what we handle beyond sewer work, that page covers the full scope.
What to expect working with Animas Excavating on a sewer repair
Our process from first call to bid
We know a sewer repair isn’t a planned expense. Most homeowners calling us are dealing with a problem that showed up without warning, and they want to know what happens next. So here’s the actual process when you contact us.
Estimates are free. After you reach out, we get back to you promptly and schedule a site visit. You’ll have a bid shortly after that. We move quickly because we’ve seen how much longer uncertainty makes a stressful situation feel, and our job is to explain the work in plain terms so you know exactly what you’re paying for.
Service area and credentials
Animas Excavating has been operating since 2018 as a licensed and insured excavation contractor, fully insured and bonded, serving Durango and the surrounding Four Corners communities, including Bayfield, Hesperus, Mancos, Cortez, and Pagosa Springs. Our Durango excavation team is a small, tight crew where first contact and field execution stay closely connected.
When you’re ready to move forward, request a sewer line repair estimate or call us directly at (970) 403-2787.
Frequently asked questions about broken sewer line repair in Durango
How do I know if I need a full replacement or just a repair?
If the damage is isolated to one section of the pipe, a targeted repair may be enough. When the pipe is failing along most of its length, with cracks, offset joints, or root intrusion throughout the run, full sewer line replacement is the right call. A camera inspection, whether run by a plumber or a drain service, shows what’s actually happening inside the pipe before any excavation decision gets made.
How long does a sewer lateral replacement take?
It varies based on conditions. Depth, whether hard rock is in the path, the total length of the run, and what surface restoration is required all affect the timeline. Most jobs in the Durango area take more than a single day when the work includes street cutting and asphalt restoration.
Will you handle permits and street cut approvals?
Coordinating permits and street cut requirements is part of the process on jobs that involve working in the right-of-way. We’ve been doing this work in La Plata County since 2018 and know what the job requires locally.
Does broken sewer line repair in Durango require work in the street?
On a full lateral replacement, yes. Tapping into the city main means going into the street, which is why sewer excavation in Durango, CO involves asphalt cutting and surface restoration as part of the job scope, not an add-on.
Ready to get a sewer line repair estimate in Durango?
A full sewer lateral replacement is a complete excavation job from the street to the house. You deserve a single contractor who handles every phase, from the tap at the main to the surface you walk on when it’s done.
Animas Excavating is local and homegrown, rooted in the Four Corners region and built on straightforward work done right. No surprises on scope, no handoffs mid-job.
Animas Excavating, 2942 E 4th Ave, Durango, CO 81301. Call (970) 403-2787, email mike@animasexcavating.com, or request a free estimate online to find out what your lateral actually needs.
