Repeated drain backups
If toilets, tubs, or floor drains keep backing up, your sewer line may be cracked, collapsed, or clogged with roots.
Sewer lines
Trenchless sewer replacement in Simi Valley
Replace a damaged sewer line without tearing up your yard. Gress Plumbing uses trenchless methods to get the job done with less digging.
Open 24/7 across Simi Valley · Flat-rate pricing quoted before we start
Overview
Traditional sewer replacement means digging a long trench across your yard, driveway, or landscaping. Trenchless replacement lets us install a new line through just a couple of small access points, which means less mess, less disruption, and less to restore once the job is done.
Before recommending replacement, we'll confirm the condition of your existing line and whether trenchless is the right fit. If a repair will solve the problem, we'll tell you.
Symptoms
Signs your sewer line may need replacement
Sewer smells
A sewage odor inside your home or in the yard can mean the line is broken and leaking.
Soggy or sunken spots in the yard
Wet patches, unusually green grass, or sinking ground above the sewer line are common signs of a break.
An older sewer line
Older clay and cast iron pipes can crack, shift, and corrode over time, even if you haven't had major problems yet.
Our process
What to expect
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Tell us what's happening
We'll ask about backups, smells, and anything unusual you've noticed around your home or yard.
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Inspect the line
We'll check the condition of your sewer line to find the problem and see whether trenchless replacement is the right fit.
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Replace the line
We'll install the new sewer line through small access points, keeping digging to a minimum.
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Test and clean up
We'll make sure the new line is flowing properly, then restore the access areas and clean up before we go.
Scope
What the service covers
The work is quoted after the sewer line, access conditions, and replacement requirements have been evaluated. The quote can account for the selected approach and the surfaces or connections involved.
Request service- Sewer line condition assessment
- Trenchless replacement planning
- Access point evaluation
- Removal or bypass of the damaged line
- Installation of the replacement line
- Post-replacement flow check
Trenchless Sewer Replacement questions
Answers before you book.
More questions on our full FAQ page.
What does trenchless sewer replacement mean?
It means replacing a damaged underground sewer line with less open excavation than a traditional replacement. The exact method depends on the condition and location of the existing line.
Will my entire yard need to be dug up?
Trenchless work is designed to limit surface excavation, but access points may still be needed. The amount of digging depends on the sewer route and the conditions at the property.
Is trenchless replacement better than a spot repair?
A spot repair addresses a limited damaged section. Replacement may be worth discussing when the line has broader damage, repeated failures, or deterioration beyond one repairable point.
How do I know whether my sewer line needs replacement?
Repeated backups, multiple slow drains, recurring repairs, and signs of underground moisture are reasons to have the main sewer line evaluated. A plumber can explain whether repair or replacement fits the problem.
Reviews
Homeowners who count on us.
4.9 average, based on 251 Google reviews
★★★★★
I had a great experience with WHRP Plumbing. I needed a reliable plumber in Simi Valley and they were responsive, professional, and easy to work with from start to finish. Kyle explained everything clearly, gave me…
★★★★★
I had an outstanding experience with WHRP Plumbing, especially Kyle. From the very beginning, Kyle was professional, knowledgeable, and incredibly easy to work with. He quickly figured out the issue, clearly explained…
★★★★★
We have been using WHRP for the past five years for all of our plumbing needs, and they have been absolutely outstanding. Kyle and the entire team have always provided amazing service, honest advice, and dependable…
Don't let a plumbing problem turn into a renovation.
Reach out as soon as you notice a leak, clog, or anything that doesn't look right. If it's safe, shut off the nearest water valve and move your belongings away from the water. Then call or send us a message describing exactly what you're seeing, and we'll get back to you quickly with next steps.
Need a plumber? We're here to help.
4.9
251 Google reviews
