Sewer Pipe Replacement in Seattle

WHEN THE PIPE IS PAST FIXING, REPLACE IT ONCE

Replace a Failing Seattle Sewer Pipe and Stop Paying to Patch It

Some pipes reach a point where clearing and patching no longer hold. The pipe is cracked, crushed, root-choked, or just worn out. Each fix buys a few months before the next backup. When that happens, sewer pipe replacement in Seattle is the cheaper answer over time.

Aces Four has replaced sewer pipe across Greater Seattle since 1978. We are family-owned, licensed, and bonded. We run our own excavation crew instead of handing your yard to a subcontractor, so one team sees the job through from the first camera pass to the final backfill.

We handle both ends of it. Need one bad section swapped out? That is a sectional replacement. Need the whole run from your house to the city main? That is a full sewer line replacement. We tell you which one your property needs, backed by video rather than guesswork.

WHEN A REPAIR NO LONGER MAKES SENSE

Signs Your Seattle Property Needs a Sewer Pipe Replacement

Not every problem calls for replacement. But when these show up, a patch usually just delays the inevitable:

✓Backups That Return After Clearing
A line that backs up again weeks after a pro clearing is failing, not just clogging. You are renting time, not fixing the pipe.

✓A Collapsed or Crushed Section
Once a pipe caves in or gets crushed by shifting soil, water has nowhere to go and no tool can pass. That section has to come out.

✓Roots That Have Split the Pipe
Seattle's older streets are lined with mature trees. Roots pry into aging joints until the pipe cracks apart, and past a point, cutting them back stops working.

✓Orangeburg, Clay, or Old Cast Iron
Homes built before the 1970s often still run on Orangeburg, clay tile, or corroded cast iron. These materials fail with age. Replacement is the only lasting fix.

✓A Bellied or Sagging Line
When a section sinks and holds standing water, waste settles and clogs there every time. A sag has to be re-graded and replaced to drain right.

✓A Failed Sale Inspection
A bad sewer scope can stall a home sale cold. Buyers and lenders want the pipe fixed, and replacement clears the report so closing can move ahead.

✓Offset or Separated Joints
When pipe sections shift out of alignment, the seams leak and snag debris, and roots find the gaps. Once joints separate, clearing cannot reseat them, so that stretch has to be replaced.

✓A Line Too Small for the Demand
An undersized pipe backs up under heavy use no matter how clean it is. Upsizing the line during replacement fixes the capacity problem for good.

✓A Failed Repair From Another Contractor
A patch that did not hold, or a repair done wrong the first time, often needs full replacement to correct. We scope what went wrong and lay out a fix that actually lasts.

Not sure if you need a repair or a replacement? We scope the pipe first and show you the footage before we recommend anything.

ACES FOUR Sewer Pipe Replacement

(425) 672-4811

Monday to Friday
8:00 am - 5:00 pm

Serving Seattle and Surrounding Areas!

A newly installed sewer pipe in an open trench of a Seattle property

HOW WE DECIDE THE RIGHT METHOD

Trenchless or Open-Cut: How We Choose

We base the method on what the camera shows, not on what is easiest for us. There are two main paths:

Open-cut. We dig a trench along the pipe and swap it out. Best for a collapsed line, a bad belly, or an easy digging path.
Trenchless (pipe bursting). We pull new pipe through the old path with far less digging. It spares driveways, trees, and hardscape.

For tight or sensitive spots, we can also re-route the line or use hydro excavation to dig around what is nearby.

Trenchless does not fit every job. Bad collapses, sharp bends, and some soils rule it out. So we camera and locate the pipe first, check depth and grade, then lay out both options with the real cost of each. When trenchless fits, it saves your yard. When it does not, we say so.

For the trenchless method in depth, see our trenchless sewer repair page. For fixes short of replacement, start with sewer repair.

WHAT THE JOB INCLUDES

What a Seattle Sewer Pipe Replacement Covers

A sewer pipe replacement is a full project, not a single visit. Depending on your property and method, we handle:

Camera inspection and line locating to confirm the problem and map the route
A written scope with a clear method recommendation
Permits and city coordination, including the Seattle side sewer permit
Excavation, shoring, and safe removal of the old pipe
New pipe installation and connection to both the city main and your house stub
Cleanout installation or replacement where needed
Backfill, compaction, and a final camera check
City inspection scheduled and attended by our crew
As-built documentation of the finished line for your records

We install what the job calls for, from PVC Schedule 40, SDR 35, and ABS to HDPE for pipe bursting, ductile iron, and cast iron. Got a bid from another contractor you want checked? We offer a free second-opinion review.

Newly placed pipes for sewer pipe replacement in a Seattle property

The Crew and Equipment Behind Every Replacement

Digging up and replacing a sewer pipe is heavy work, and it gets risky fast without the right gear on site. Our Seattle crew shows up ready for residential yards, tight urban lots, and commercial sites alike. On the job you will see:

Mini and full-size excavators sized to the lot, so we dig only what the job needs
A pipe bursting rig for trenchless work that keeps your yard intact
Trench shoring and trench boxes that keep the dig safe and up to code
Camera and locating gear to map the pipe and verify the finished install

That range of equipment is why we run the core of every job in-house, from camera work to excavation to backfill. A dedicated project manager stays on your job the whole way, so you always know who to call, even on the rare piece we bring in a vetted specialty partner for, like vac-truck work or CIPP lining.

How Long Sewer Pipe Replacement Takes

It depends on the pipe. A short sectional swap can wrap in a day. A full run from house to main, especially a deep or long one, can take several days once permits, excavation, inspection, and restoration are counted.

Two things drive the timeline most: the length and depth of the pipe, and the method. Trenchless bursting is often faster because there is far less to dig and refill. Either way, your sewer is only out of service for a short stretch, during the swap itself or while a liner cures, not for the whole project.

What Seattle Homeowners Should Know About Side Sewer Permits

In Seattle, replacing a side sewer takes a permit, and the work has to pass a city inspection. This trips up homeowners who try to skip it, because an unpermitted pipe can resurface during a future sale or trigger fines. Requirements also shift from one jurisdiction to the next across the Eastside and north into Snohomish County.

We handle permitting end to end:

The side sewer permit application
811 utility locates
Right-of-way or street-opening permits for roadway work
Scheduling the city inspection our crew attends

You get a clean, permitted, inspected pipe and the records to prove it.

What Affects Your Sewer Pipe Replacement Cost

No two replacements price the same, so we quote each one after seeing the pipe rather than posting a number that would not fit your property. Several things affect what a replacement costs:

Length and depth of the pipe. A long run to the main or a deep line means more excavation, more pipe, and more restoration.
Trenchless versus open-cut. Feasibility depends on the pipe's condition and path, and each method carries its own cost.
Pipe material and diameter. The size and type of pipe the job needs affects both material and labor.
Access and site conditions. Tight lots, utility conflicts, and hard surfaces over the pipe all add work.
Surface restoration. We restore concrete and asphalt, priced into the bid. Lawn and landscape replanting is not included.
Permits and inspections. City permit and inspection fees are listed separately, so you see what they cost.

We do not publish a range, because a wrong guess helps no one. Instead we scope your pipe and hand you a written estimate with the method options laid out. Financing is available through GreenSky if you would rather spread the cost. To get your number, request a free estimate.

Sewer Pipe Replacement Across Greater Seattle

We replace sewer pipe for homeowners, property managers and HOAs, restaurants, commercial buildings, industrial facilities, and general contractors across Seattle, Bellevue, Kirkland, Renton, and north into Snohomish County.

Older pockets like Ballard, Wallingford, Green Lake, Beacon Hill, and West Seattle sit on a lot of aging clay and Orangeburg, which is exactly the pipe we replace most. Somewhere else in King County? Reach out and we will tell you how we can help.

One note on scope: we take on residential, multi-family, commercial, and municipal jobs. We do not handle high-rise interior stacks, contaminated or hazardous soil sites, or work needing specialty engineering we do not provide.

Not sure if your project fits? Call and we'll tell you straight, and point you in the right direction if it's outside our scope.

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We diagnose before we dig

The worst outcome is tearing up a yard for a problem a smaller fix would have solved. We scope and locate first, so the plan matches what is actually wrong. You never pay to replace pipe that did not need it.

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One crew, start to finish

We run our own excavation team, so the people who diagnose your pipe are the ones who replace it and restore the site. Nothing gets lost in a handoff between a camera company and a dig crew.

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Permits and inspections handled

We pull the side sewer permit, coordinate with the city, and attend the inspection ourselves. You get a fully permitted pipe and the paperwork, without spending your week on the phone with the permit office.

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A Seattle crew that stays put

We have worked these neighborhoods since 1978, from old clay laterals in Ballard to long commercial runs on the Eastside. You get a family-owned team that knows Seattle soil, Seattle trees, and Seattle permit rules.

Do I really need a full replacement, or can the pipe be repaired?

It depends on the pipe's condition. If the damage is one bad section, a sectional replacement or repair is usually the right call. If the pipe is collapsed, badly root-split, or made of failing Orangeburg or clay, replacement is the lasting fix. Either way, we scope the line with a camera first and show you the footage before recommending anything.

Will you tear up my yard or driveway?

Not always. When your pipe qualifies for trenchless pipe bursting, we pull the new pipe through the old path with far less digging, which spares driveways, trees, and hardscape. Open-cut needs a trench, but we restore concrete and asphalt as part of the bid. Lawn and landscape replanting is not included.

How long will I be without a working sewer?

Only a short stretch. Your sewer is out of service during the actual pipe swap or while a liner cures, not for the whole project. The full job can run from a day for a short sectional replacement to several days for a deep or long house-to-main run.

Do I need a permit to replace my sewer pipe in Seattle?

Yes. Replacing a side sewer in Seattle requires a permit and a city inspection, and requirements shift in other jurisdictions across the Eastside and Snohomish County. We handle all of it, from the permit application and 811 locates to scheduling the inspection our crew attends.

What does sewer pipe replacement cost in Seattle?

There is no flat number, because length, depth, pipe material, site access, and restoration all move the price. We scope your pipe and hand you a written estimate with the method options laid out, so you see exactly what the job involves. Financing is available through GreenSky if you want to spread the cost.

Can you check a replacement quote I got from another contractor?

Yes, and the review is free. If another company has quoted you a sewer pipe replacement, we will scope the line ourselves and give you an honest second opinion on whether the work and the method they proposed actually fit your property. Sometimes a full replacement is not what the pipe needs, and we would rather tell you that than sell you a bigger job.

REPLACE IT ONCE, WITH A CREW YOU CAN TRUST

Schedule Your Seattle Sewer Pipe Replacement

When a pipe is past fixing, the smart move is to replace it right the first time. Aces Four brings decades of Seattle experience, an in-house excavation crew, and straight answers backed by video to every job. We diagnose it, replace it, pull the permits, and restore your site.

Call (425) 672-4811 or request a free quote online to get your pipe scoped and a written estimate.