Sewer Line Excavation and Repair in Portland, Oregon
When a sewer line fails, you need it fixed fast and done right. A&N Construction and Excavation provides sewer line excavation services across the Portland metro area — from digging up and replacing failed sewer lines to trenching for new sewer connections. We handle the excavation so your plumber can handle the pipe work.
What Is Sewer Line Excavation?
Sewer line excavation involves digging a trench to expose, repair, or replace an underground sewer pipe. Portland's older neighborhoods have aging sewer systems — clay pipes that crack, bellied lines that collect waste, and root-infiltrated connections that cause backups. When a camera inspection reveals a sewer line problem that can't be fixed with trenchless methods, excavation is the solution. We dig, your plumber replaces the pipe, and we backfill and restore the site.
Our Sewer Excavation Process
- 1
Coordination with Your Plumber
Your plumber identifies the problem location via camera inspection. We review the footage and plan the dig.
- 2
Utility Locates
We verify the location of all other underground utilities in the dig area.
- 3
Excavation
We carefully excavate to expose the damaged sewer line, typically 3-8 feet deep depending on the line's location.
- 4
Plumber Access
We hold the trench open and provide safe access for your plumber to make the repair or replacement.
- 5
Bedding and Backfill
After the plumber is done, we install proper bedding around the new pipe and backfill the trench in compacted lifts.
- 6
Surface Restoration
We restore the surface — yard, driveway, sidewalk, or whatever was above the trench.
When You Need Sewer Line Excavation
Your sewer line has been camera-inspected and shows cracks, breaks, root intrusion, or bellying that can't be repaired with a liner. You're experiencing repeated sewer backups that snaking doesn't permanently fix. You're connecting a new home, ADU, or addition to the city sewer system. Your property is being converted from septic to city sewer. A city inspection has required sewer line replacement.
Sewer Line Excavation Cost in Portland
Sewer line excavation costs depend on the depth of the pipe, the length of trench needed, soil conditions, and what's on the surface above the line (yard, driveway, sidewalk). A standard residential sewer line replacement excavation in Portland typically runs $3,000 to $10,000 for the excavation work alone (your plumber charges separately for the pipe work). If the line runs under a driveway or sidewalk, costs are higher due to the demolition and restoration work involved.
Why Choose A&N
Sewer excavation is time-sensitive — when your sewer is down, you need it fixed fast. We respond quickly, dig precisely, and coordinate directly with your plumber to minimize the time your sewer is offline. We've handled sewer line excavation across Portland from the older clay pipe systems in inner SE Portland to newer neighborhoods in Sherwood and Happy Valley.
Sewer Line Excavation Service Areas
We serve the entire Portland, Oregon metro area.
Frequently Asked Questions
Can you recommend a plumber for the pipe replacement?
How long does a sewer line excavation take?
Will you need to dig up my driveway or sidewalk?
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A&N Construction and Excavation · CCB #268549