A confirmed need
The whole line is checked first, so the decision to replace is based on its condition, not a hunch.
When repair isn't enough
Sewer Line Replacement Portland
Line broken in several places or collapsed? Replace it once with new pipe and stop paying for repeat repairs.
- One job, not repeat repairs
- Dig or no-dig options
- Priced by the foot
Signs it's time
Replacing an Old Sewer Line
Replacement makes sense when the damage runs along the line instead of sitting in one spot: several cracked or offset joints, a collapsed section, long sags, or pipe material that's breaking down. Patching each problem separately usually costs more than replacing the run.
It's also worth considering before a major remodel or an added unit, when the old line has to carry more flow. If the trouble turns out to be something smaller, our Portland sewer repair overview covers the other options.
Two ways to do it
Open Trench or Pipe Bursting
Open trench replacement digs along the line, removes the old pipe and lays new pipe on a proper bed at a steady grade. It's the right choice when the line needs re-routing or the existing grade is wrong.
With pipe bursting, new pipe is pulled through the old one from small pits at each end, splitting the old pipe as it goes. Lawns, driveways and trees stay mostly undisturbed.
Which one we recommend depends on the condition of the old pipe and what sits over it.
Main Sewer Line Replacement, Step by Step
- Step01
Inspect and measure
We check the full line, confirm the length and depth, and locate the street connection.
- Step02
Price and plan
You get the method, the route and the cost before anything is dug.
- Step03
Excavate or set pits
We dig the trench or the two access pits and protect the surrounding surfaces.
- Step04
Install new pipe
New pipe goes in with tight connections at the house and the street end.
- Step05
Inspect and restore
After the city inspection, we backfill and put the surface back.
Cost
Replacement Cost by Length and Depth
Full sewer line replacement usually runs $60 to $250 per foot, or roughly $7,000 to $20,000+ for a typical line.
Depth, line length, concrete or landscaping over the route, and whether the line can be burst or must be trenched set the final price. If the damage turns out to be limited to one section, a spot repair costs far less and that's what we'll recommend.
Paying for the same repair twice? Price a full replacement instead.
Call (503) 221-5373What's included
What the Job Includes
New pipe end to end
The run from the house to the street connection is replaced in one job, not in pieces.
A steady grade
New pipe is bedded so waste keeps moving and nothing settles in low spots.
Surface put back
We agree up front on what gets opened and how lawn, concrete or pavers are restored.
What people ask
Replacement Questions
How do I know I need replacement and not repair?
One bad joint is a repair. Damage along most of the line, a collapse or failing pipe material points to replacement.
How long does replacement take?
Length, depth and the inspection schedule all play a part. You'll get a timeline with the price.
Will my yard be torn up?
With an open trench, yes, along the route. With pipe bursting, only two small pits. You'll know which method applies before you decide.
Who is responsible for the part under the street?
In Portland the owner maintains the line from the house to the curb, and past the curb it's the city's. We replace the part that's yours.
Plan it once
One Replacement Instead of Repeat Repairs
Call to find out whether your line needs replacing, which method fits, and what it will cost.
Where we work