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Top Sewer Line Repair Companies in Portland, Oregon Ranked
A failing sewer line is a serious issue that can disrupt your home and lead to costly property damage. Sewer line repair involves fixing the underground pipe that carries wastewater from your home to the city's main sewer connection. This guide will help you understand the common problems, repair methods, and local considerations for Portland homeowners, empowering you to make an informed decision when you need to find a qualified professional.

Plumbing and Sewer Renewal Specialists
9350 SW Tigard St, Portland, OR 97223
Plumbing and Sewer Renewal Specialists is a plumbing and sewer service provider based in Portland, OR. They offer services including sewer camera inspections, drain cleaning, sewer line repairs, trenchless sewer repair, and repiping. The team is experienced in using cured-in-place pipe (CIPP) technology for sewer line repairs, which allows for less invasive fixes. Customers have noted their care in protecting property and efficient project completion.

Drain Hound (Owner - Operator)
7202 NE Hwy 99 Ste 106, Vancouver, WA 98665
Drain Hound (Owner - Operator) is a plumbing service based near Portland, OR, offering a wide range of plumbing solutions including sewer camera inspections, water heater repair and installation, water softener installation, drain cleaning, hydro jetting, sewer line repair, trenchless sewer repair, leak detection, repiping, and garbage disposal repair. The company uses advanced technology such as high-definition sewer cameras and hydro jetting equipment to diagnose and clear blockages efficiently. Drain Hound specializes in trenchless water main replacement, which reduces landscape disruption and preserves property aesthetics. Owner-operated by Taylor Prouty, the business serves the greater Vancouver, WA area and provides 24/7 emergency plumbing services.

Service Pro Plumbing Inc
portland
Service Pro Plumbing Inc offers a wide range of plumbing services in Portland, OR, including water heater repair and installation, water softener installation, drain cleaning, sewer line repair, leak detection, and gas line installation. They serve both residential and commercial clients with tailored solutions to meet various plumbing needs. The company emphasizes clear communication and cost-effective options while maintaining high safety and quality standards.

Perfect Service Plumbing and Drain Cleaning
1011 SE Oak St, Portland, OR 97214
Perfect Service Plumbing and Drain Cleaning is a plumbing company serving Portland, OR, with over 20 years of experience. They provide a wide range of plumbing services for both residential and commercial clients, including sewer camera inspections, water heater repair and installation, drain cleaning, hydro jetting, sewer line repair, leak detection, repiping, gas line installation, and toilet and garbage disposal repairs. The company offers 24/7 emergency response to address urgent plumbing needs and uses high-tech equipment to diagnose and resolve issues effectively.

Jeremy's Plumbing and Water heater services
5604 NE 102nd St, Vancouver, WA 98686
Jeremy's Plumbing and Water Heater Services is a plumbing company serving Portland, OR. They offer a range of plumbing solutions including water heater repair and replacement, drain cleaning, sewer line repair and replacement, leak detection, and toilet repair. The company handles both residential and commercial plumbing needs, providing tailored solutions for each customer. Jeremy has extensive experience in sewer line projects and uses advanced techniques and quality materials to ensure effective repairs and installations.
Understanding Your Sewer Line in Portland
Your home's main sewer line is a critical but often overlooked component, running from the foundation to the public sewer main under the street. In Portland, many neighborhoods feature older homes with aging infrastructure, making sewer line issues a frequent concern for residents. 1 2
Common causes of sewer line failure here include:
- Aging Pipes: Many historic areas like Laurelhurst have original clay or cast iron pipes that are prone to cracking and corrosion over decades of use. 1 3
- Tree Root Intrusion: Portland's lush tree canopy is beautiful, but roots seek out moisture and can infiltrate pipe joints, causing blockages and breaks. 4 5
- Ground Shifts and Sags: Soil movement over time can cause pipes to settle incorrectly, creating low spots where waste collects and leads to blockages or collapses. 3 2
Recognizing early warning signs-such as frequent drain clogs, gurgling toilets, sewage odors in the yard, or unexplained soggy patches on your lawn-can help you address a sewer line problem before it becomes an emergency. 5
Repair Methods: Trenchless vs. Traditional Excavation
When a sewer line fails, you generally have two approaches: traditional excavation or modern trenchless repair. The right choice depends on the damage, your property layout, and your budget.
Traditional Sewer Line Excavation
This conventional method involves digging a large, open trench along the path of the damaged pipe to fully expose and replace it. While it allows for a complete visual inspection and replacement of the entire line, it is highly disruptive. 6 7 Excavation can tear up lawns, gardens, driveways, and sidewalks, leading to significant restoration work and costs after the plumbing job is done. 8 It is often necessary when a pipe has completely collapsed or when there is extensive damage over a long section. 9
Modern Trenchless Sewer Repair
Trenchless technology has revolutionized sewer line repair by minimizing digging and property disruption. These methods are particularly popular in Portland's established neighborhoods with mature landscaping and hardscaping. 4 There are two primary trenchless techniques:
- Pipe Lining (Cured-in-Place Pipe or CIPP): A flexible, resin-coated liner is inserted into the existing damaged pipe and inflated. The resin hardens, creating a new, seamless pipe within the old one. This method is excellent for repairing cracks, leaks, and minor corrosion without excavation. 3 6
- Pipe Bursting: Used for more severe damage or collapsed lines, this technique involves pulling a new pipe through the old one while simultaneously fracturing the old pipe outward. It completely replaces the line but requires only small access pits at the beginning and end of the run, avoiding a long trench. 4 9
Trenchless repairs are typically faster than excavation and can save 30-40% on landscape and hardscape restoration costs. 8 10
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Cost Considerations for Portland Homeowners
The cost of sewer line repair in Portland varies widely based on the method, extent of damage, and property-specific factors. Generally, you can expect a range from roughly $4,000 to over $15,000. 1 11 2
Key factors influencing the final price include:
- Repair Method: Trenchless pipe lining or bursting typically ranges from $3,500 to $15,000+, while traditional excavation can start at $4,000 and exceed $15,000, especially if it involves cutting through concrete driveways or patios. 1 5 10
- Pipe Length and Depth: Longer, deeper lines require more materials and labor.
- Site Access and Restoration: Difficult access or the need to rebuild landscaping, sidewalks, or driveways adds substantially to the project cost. This is where trenchless methods often provide significant savings. 6 8
- Permits and Inspections: The City of Portland requires permits for sewer line repair or replacement. Be aware that new inspection fees have been implemented; as of 2025, there is an additional $295 inspection fee for these projects. 1 11 Always ensure your plumbing professional pulls the proper permits.
Navigating Portland's Permit Process
Any significant sewer line work in Portland requires a city permit. This process ensures the repair meets municipal codes and is properly inspected. Your chosen plumbing contractor should handle the permit application, but it's good to be informed. The new inspection fee is a recent addition to the cost structure, so discussing all potential fees upfront with your provider is crucial. 1 A reputable professional will factor permit costs and timelines into their project plan and quote.
Choosing the Right Repair for Your Home
So, how do you decide between trenchless and traditional repair? Start with a professional video camera inspection. A plumber will send a camera down the line to pinpoint the exact location, cause, and severity of the damage. 3
- Consider Trenchless Repair If: The damage is from cracks, root intrusion, or corrosion, but the pipe is still structurally intact enough for lining. Pipe bursting is ideal for collapsed sections or severely damaged lines where full replacement is needed but you want to avoid a massive trench. 4 9
- Traditional Excavation May Be Necessary If: The pipe is shattered over a long distance, there are multiple severe collapses, or the line has failed at several unrelated points. 7
For most Portland homeowners dealing with common issues in older clay or cast iron lines, trenchless methods offer a less invasive, often more cost-effective solution when considering total project restoration. 1 4 6
Frequently asked questions
Sources
Footnotes
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Sewer Line Replacement in Portland - Costs, Permits, and ... - https://www.modernplumbingpdx.com/sewer-line-replacement-in-portland/ ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7
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How Much Does Sewer Line Replacement Cost in Portland, OR? - https://www.angi.com/articles/how-much-does-sewer-line-replacement-or-repair-cost/or/portland ↩ ↩2 ↩3
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Trenchless Sewer Repair Portland OR - D&F Plumbing - https://dandfplumbing.com/trenchless-sewer-repair-portland-or/ ↩ ↩2 ↩3 ↩4
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Trenchless Sewer Repair in Portland, OR - Alpha Environmental - https://alphaenvironmental.net/sewer/trenchless-sewer-repair-portland/ ↩ ↩2 ↩3 ↩4 ↩5
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The Cost of Sewer Line Replacement: What to Expect - https://dirtcheapsewer.com/the-cost-of-sewer-line-replacement/ ↩ ↩2 ↩3
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Sewer Pipe Lining vs Residential Excavation - 128 Plumbing - https://www.128plumbing.com/sewer-pipe-lining-vs-residential-excavation/ ↩ ↩2 ↩3 ↩4
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Open Excavation versus Trenchless Repair - T3 Lining Supply - https://www.t3liningsupply.com/blog/open-excavation-versus-trenchless ↩ ↩2
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Trenchless vs. Traditional Sewer Repair - https://sewerlinesonly.com/trenchless-vs-traditional-sewer-repair-which-is-more-cost-effective-for-lakewood-homeowners/ ↩ ↩2 ↩3
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Trenchless Sewer Repair in Portland, OR - Environmental Works - https://www.eworksnw.com/sewer/trenchless-sewer-repair/ ↩ ↩2 ↩3
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Cost Comparison: Trenchless vs. Traditional Sewer Line Repair - https://www.advancedtrenchlesssolutions.com/blog/cost-comparison-trenchless-vs-traditional-sewer-line-repair ↩ ↩2
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How Much Do Plumbers Cost in Portland in 2025? - https://www.hencoplumbing.com/how-much-do-plumbers-cost-in-portland-in-2025/ ↩ ↩2