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Top-Rated Sewer main install, replace or repairers in Longview - Updated Nov 2026

Avatar for Legacy Plumbing and Excavation, LLC
Legacy Plumbing and Excavation, LLC
4.5(
85
)
Sewer Main - Install, Replace or Repair

Serving Longview, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Ayden Hart and Adam Bukva were here for 2 biz days and replaced my CPVC wit PEX A. Next is city inspection then work will be complete. They did need to remove some Sheetrock to access main level and upstairs bathrooms. Very professional workers."
Sewer Repair
Excavation & Sewer
Response time9 hrs
Response rate95%
879 neighbors recently requested a quote
Avatar for Service Pro Plumbing
Service Pro Plumbing
5.0(
5
)
Sewer Main - Install, Replace or Repair

Serving Longview, WA and surrounding areas

Approved

In business since 2023

Emergency services offered

Small jobs welcome

Welcome to Service Pro Plumbing, where faith, integrity, and exceptional service come together!\n\nAs a family-owned and operated plumbing company proudly serving Clark and Cowlitz Counties, we believe every customer deserves honest communication, quality workmanship, and genuine care.\n\nWith over 1,300 five-star reviews, we've earned our reputation by putting customers first, delivering dependable solutions, and treating every home like our own.\n\nFrom water heater repairs and installations to drain cleaning, leak detection, sewer services, repiping, and complete plumbing solutions, our experienced team is ready to help.\n\nNeed a plumber fast? We offer same-day or next-day service availability to get your home back to normal quickly!\n\nAt Service Pro Plumbing, we're not just fixing plumbing problems. We're building lasting relationships through integrity, professionalism, and service you can trust.\n\nExperience the Service Pro difference!

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+11

Response time6 hrs
Response rate100%
102 neighbors recently requested a quote
Avatar for Rossco Plumbing
Rossco Plumbing
4.3(
12
)
Sewer Main - Install, Replace or Repair

Serving Longview, WA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Mani was a professional and competent repair person. He fixed our malfunctioning toilet capably and explained each step to help me understand what had happened."
Response time9 hrs
127 neighbors recently requested a quote
Recommended by37%of homeowners
Avatar for Simpson Plumbing, LLC
Simpson Plumbing, LLC
4.6(
128
)
Sewer Main - Install, Replace or Repair

Serving Longview, WA and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"Our CPVC house piping had a lot of water hammer. After turning on the washing machine, I walked out for a moment, and then when I came back in water was dripping from the ceiling exhaust fan onto the washing machine. We have a two story house and they ran the hot water plumbing from the water heater in the garage through the laundry room ceiling. I removed the exhaust fan and could see water dripping from a tee way back beyond reach. The water hammer from the washer likely caused the fitting to start leaking. I turned the house water supply off and sent a message to Simpson plumbing through Angie's list. A lady from Simpson plumbing contacted me right away the next morning. She was courteous, but was having a hard time understanding what the problem was. Maybe I was giving too much information or something, but when the plumbers arrived later that afternoon they didn't understand what was going on. I ran through what happened again and showed them the wet spot on the ceiling. They had to cut an opening in the ceiling and we turned the water on and confirmed the leak. We moved my washing machine out of their way and they cut out the CPVC tee and replaced it with PEX. The piping was brittle so it took him a couple of attempts to get a straight cut which is why I called them to mess with it. After installing the PEX tee, we were leak free and at my request they provided a reference for the drywall repair. He also advised getting some water hammer arrestors installed on the supply lines to the washing machine to stop the water hammer, which I have since done."
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+8

Recommended by90%of homeowners
Sarkinen Rooter & Plumbing, LLC
4.3(
137
)
Sewer Main - Install, Replace or Repair

Serving Longview, WA and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"Ty was a pro from day one. He carefully analyzed the entire situation and formulated a solution almost as quickly as he was explaining his end goal. Not only was his answer the best I had been proposed for a new water line, it was actually only slightly higher than just getting the new line to the house, period. Ty also allowed for bypassing any old iron piping, giving me a path directly inside the house. Although I eventually opted for a new sewer line as well, the additional cost involved was well worth it! I highly recommend Ty’s services to anyone needing plumbing work."
during project
 after project
Recommended by98%of homeowners
Avatar for Brockmueller Plumbing, LLC
Brockmueller Plumbing, LLC
5.0(
4
)
Sewer Main - Install, Replace or Repair

Serving Longview, WA and surrounding areas

In business since 2022

Free estimates

Small jobs welcome

"Sunday morning my outdoor pipe burst which was leaking into my basement. I couldn't get the water main turned off and I was desperate. I called another plumbing company who was going to charge me $500 just to come and look at the problem. After 1.5 hours of waiting for this other plumber I get a call saying they made a mistake and have no one to help me. I was in tears. Called Andrew. He was there in 10 min (on his day off) had it fixed in 45. And I saved almost $200 in costs. Fabulous man! Thank you Andrew!!!"
Response time10 mins
Response rate100%
Recommended by100%of homeowners
Avatar for I 5 Exteriors, Inc.
I 5 Exteriors, Inc.
3.5(
96
)
Sewer Main - Install, Replace or Repair

Serving Longview, WA and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"The customer service was good but the roofers did not notify me of significant dry rot at the roof soffits even though they replaced the fascias that were connected to them. The soffits ended up falling apart after the fascias were replaced. They did the job they were hired to do but I had hoped for more holistic care."
New Roof
Response time1 day
Response rate96%
Recommended by91%of homeowners
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FAQs for sewer main install, replace or repair projects in Longview, WA

Most trenchless sewer line replacements can be completed within one to three days, though this varies based on your situation. Simple repairs on accessible lines might be finished in hours, while complex systems or challenging soil conditions could extend the timeline. The reduced excavation requirements result in faster completion compared to traditional trenching methods.

Trenchless pipe lining may reduce the interior diameter of your pipes, which could affect flow capacity in already narrow lines. This method also requires the existing pipe to maintain sufficient structural integrity to support the new liner. Severely collapsed sections, major joint separations, or completely misaligned pipes might not be suitable candidates for lining and could require alternative approaches.

Trenchless sewer pipe liners are rated to last up to 50 years when properly installed and maintained. Actual longevity depends on installation quality, usage patterns, and environmental factors like soil movement or tree root intrusion. Regular maintenance and avoiding problematic disposal practices (like flushing non-biodegradable items) can help maximize your system's operational lifespan.

Trenchless technology availability varies by region, with greater accessibility in metropolitan and suburban areas where specialized contractors operate. Some rural locations may have limited access to trenchless equipment and expertise. Local regulations and soil conditions also influence availability. A professional assessment of your property and local contractor options will determine if trenchless methods are feasible for your specific location.

Professional video inspection provides the most reliable assessment of whether your sewer issues suit trenchless repair. Generally, pipes with moderate damage, like small cracks, minor leaks, or partial blockages, respond well to trenchless techniques. Completely collapsed sections, severe misalignments, or extensive structural failures might require traditional excavation. Consulting with contractors who offer both methods ensures you receive unbiased recommendations.

Quality trenchless sewer replacement often includes a workmanship guarantee from the contractor. The specific terms vary by company and region, but many professionals stand behind their installation for at least one year. Material warranties may extend longer, depending on the pipe products used. Always request written warranty information before hiring, and understand exactly what's covered and what might void your protection.

The Longview, WA homeowners’ guide to sewer main install, replace or repairs

From average costs to expert advice, get all the answers you need to get your job done.