Replacing your sewer line probably wasn’t on your vision board this year. And now, here you are — staring at your yard, and wondering what’s coming next. You have questions, and this guide has answers.
Sewer problems are among the most stressful issues a homeowner can face.
They feel urgent, messy, expensive — and confusing.
Suddenly, you’re expected to make a major decision, fast. With no prior experience and a lot at stake, it’s easy to feel overwhelmed.
Whether you’re responding to an emergency or planning ahead, this guide is here to give you clarity, confidence, and peace of mind.
Let’s dig in. (Not literally – at least, not yet.)
Replacing your sewer line might feel like a massive unknown – but it doesn’t have to. Below, we’ve broken down the process into clear, manageable steps so you know exactly what’s coming next. No guesswork. No surprises. Let’s start at square one
It usually starts with a plumbing symptom (or a few): a persistently slow-draining tub, strange gurgling sounds, or a backup you've had to snake more than once.
Trust your gut - these issues often point to something deeper.
When you reach out to a professional, you put yourself on the path to clarity and peace of mind.
A reputable company will listen carefully, ask the right questions, and set up an on-site evaluation. More likely than not, this will involve a camera inspection of your sewer line.
A technician will run a waterproof camera through your sewer line to locate damage, identify the cause, and show you what's happening underground in real time.
This is where you'll start to get some answers. How bad is the damage? Do you need a full sewer line replacement? Or will a spot repair suffice?
Based on the results of your camera inspection, you'll be walked through your options and get answers to all of your questions.
Once you've reviewed your options and feel confident that you've become properly informed, you'll decide on the scope of work.
After you approve work to begin, your contractor will handle permit applications and contact 811 to locate and mark gas, electric, water, and communication lines.
This step may take as little as a day or as long as two weeks, depending on local regulations - but it's essential for safety.
Now the work (and the action) can start. The crew of technicians arrives, equipment is staged, and the site is prepped.
Most sewer line replacements are completed in a day or two.
Your new sewer line is now installed - your cracked, corroded, or collapsed pipes have been replaced - and activity will start to settle down.
Overall, the active work typically takes one or two days.
Before anything is buried or finalized, your system is tested for leaks, flow, and durability. An inspector may also sign off to ensure everything meets code.
This step provides peace of mind that the job was done right.
Finally, it's time to put things back together. Excavated areas are backfilled and graded, hay is typically spread over the site, and any hardscaping (decks, patios, etc.) that was impacted during the work is addressed.
You'll be walked through the finished job, ask any final questions, and receive all necessary information.
This timeline should leave you with a clear understanding of what to expect at each stage of your sewer line replacement. From the initial camera inspection to final restoration, knowing the process helps reduce stress and ensures nothing catches you off guard. With the right partner, the job stays on track – and your home stays protected.
Now, let’s take a closer look at what brought you here in the first place.
A camera inspection of your sewer line is the surest way to know if you’ll really need to replace your sewer line or if a spot repair will suffice.
A live camera line look inside your pipes is the most cost-effective way to get to the bottom of things if you’ve been dealing with any of the following plumbing symptoms:
Once a camera inspection details the condition of your sewer line, it’s time to take the next steps. It’s advisable not to delay necessary action, but you should also take your contractor search seriously. We’ll talk about that part a little later.
Tree roots naturally seek out moisture, so your sewer line is a magnet for them. Over time, tree roots can grow into small cracks or joints in the pipe, blocking the flow and even breaking the pipe apart.
A bellied pipe happens when part of the sewer line sinks, creating a low spot where waste and water collect. This standing water can result in slow draining and lead to further damage.
Corrosion, cracks, and collapses are structural issues that often drive the need for sewer line replacement.
Corrosion typically affects older metal pipes, slowly weakening them over time, while cracks or full collapses usually result from soil movement, root intrusion, or surface pressure. These problems block flow and threaten the integrity of the system – making professional inspection essential for determining whether a repair or full replacement is needed.
Offset joints occur when sections of a sewer pipe shift out of alignment, often due to soil movement, poor installation, or settling over time. This misalignment creates gaps where waste can catch, leading to frequent clogs, slow drains, or even leaks into the surrounding soil.
While minor offsets can sometimes be managed with maintenance, severe cases disrupt flow and may require full line replacement. A camera inspection is the best way to detect and assess the extent of the problem.
Items like wipes, paper towels, hygiene products, and grease can build up over time, restricting flow and leading to slow drains or backups. While these habits can certainly cause problems, they rarely lead to full sewer line failure on their own.
However, keeping drains clear through proper flushing is one of the easiest ways to preserve your system’s performance and prevent avoidable service calls.
Once you’ve had a camera inspection, you could start to hear terms like “offset joints” and “pipe collapse.” Maybe you’ve already gotten a quote – and now you’re probably wondering if it’s fair or not.
Take a breath. Before you sign anything or approve work to begin, here are some tips on how to get the full picture.
If a contractor shows you a video and throws out technical jargon without explaining what it means for you, that’s a red flag.
Slow down and take a deep breath. Have a conversation with your potential contractor about the findings of your camera inspection. Here are some guided questions that can help evaluate your contractor:
Pro tip: A reputable company should take the time to explain what you’re seeing in plain language – and give you access to the footage. If the diagnosis sounds scary and rushed, it’s advisable to pause and get a second opinion.
It’s tempting to go with the first company that shows up – especially when the problem feels urgent. But remember, this is a major project, and rushing into it can cost you.
When getting quotes, it’s wise to look at more than just the bottom-line number. Make sure you ask:
Quick reality check: The cheapest quote isn’t always the best. And the most expensive doesn’t always mean the highest quality. What you’re looking for is clarity and completeness.
This is where people often get tripped up. You’re not just buying a pipe – you’re investing in your peace of mind, a process, and protection against future issues.
When reviewing multiple quotes, compare the scope of work, materials used, replacement method, warranties, permits & fees, and cleanup process.
A good quote provides a written estimate that includes everything upfront – without vague language – so there are no surprise charges later. Just a clear and detailed plan, start to finish.
Different homes, lots, pipe depths, and local codes call for different approaches. While it’s true that your options aren’t exactly endless, you do have a few choices to make. And no two sewer installations look identical. Here’s what you can begin to think about as things start to get serious.
Homeowners typically choose between open-trench and trenchless sewer line replacement. Open-trench involves digging to fully expose the pipe and allows for complete replacement. Trenchless options, like pipe lining or bursting, are less invasive but better suited to specific situations and often involve subcontracting. The right method depends on your yard, pipe condition, and budget.
Most modern replacements use PVC (polyvinyl chloride) – a durable, corrosion-resistant plastic designed to last 50+ years. In trenchless jobs, HDPE (high-density polyethylene) is common due to its flexibility and seamless installation. Older materials like cast iron are rarely used today but may still be found in existing systems. The choice of material impacts longevity, cost, and compatibility with local codes.
Not all sewer line issues require a full replacement. Spot repairs can fix isolated damage if the rest of the pipe is in good condition, but older or compromised lines benefit more from a full replacement. A camera inspection helps determine the best path forward. Be sure to talk with your contractor about the pros and cons of each before deciding.
Sewer work often requires permits and inspections from your local township. A reputable contractor will handle all of this on your behalf, ensuring compliance and smooth scheduling. After the job, your property may need some restoration – like regrading soil or reseeding grass – so it’s important to clarify what’s included. Some crews offer full restoration; others may leave that to the homeowner (you).
Some companies use in-house crews; others rely on subcontractors. In-house teams offer more consistency, communication, and accountability, while subcontracting can lead to miscommunication or delayed follow-up. Ask who will be doing the work and whether they’ll be onsite throughout the project. This one choice can affect quality, timelines, and your overall experience.
Warranties vary widely – some last a year, others cover decades. A clear, written warranty gives you peace of mind that the work is built to last. For large projects, ask about financing options to make the investment more manageable. Reliable contractors will be upfront about both warranty terms and payment plans.
Before digging begins, we’ll handle all necessary permits and coordinate inspections with your local township. These steps may impact the timeline of work, but will begin as soon as work is approved. We may also use a final camera inspection to mark exactly where work is needed, ensuring a precise and efficient replacement.
Open-trench replacement involves excavation, which means parts of your yard, driveway, or landscaping may be temporarily disturbed. Our team takes care to minimize disruption and protect as much of your property as possible, but you should expect some impact on the dig area. Restoration is completed the same day the job finishes and includes backfilling the trench and grading the soil.
During active replacement work, your home’s plumbing will need to be shut off to ensure safety and prevent wastewater from interfering with the job. This disruption usually lasts during working hours only – typically 8 a.m. to 4 p.m. – and service is restored during each evening. You may want to plan accordingly in order to avoid laundry, dishwashing, and showers during these hours.
You’ll notice excavation equipment on-site throughout the project. Depending on the job’s scope, this may include a backhoe, pipe cutters, and other specialized tools. All work areas are cordoned off for safety, and we’ll keep you updated throughout the day so there are no surprises.
Once the new sewer line is in place and connected, our team performs a full system test to confirm flow and alignment. The trench is backfilled, and disturbed areas are graded for safety and appearance.
We’ll also review the completed work with you, answer any questions, and leave your property clean and secure. New sewer lines are built to last 50 to 70 years, so you can rest easy knowing you won’t need another replacement anytime soon.
Replacing a sewer line is a major home project. Understanding what to expect during the work can help you prepare, both mentally and practically. While the active work typically takes just one or two days, it does involve significant activity around your home. Here’s a breakdown of what you can anticipate before, during, and after the job.
Here’s the short answer on sewer line replacement cost: it depends – often quite a bit. Depending on the specifics of your home and the project, we estimate the final cost could range anywhere from $7,000 to over $20,000. Spot repairs generally fall between $3,000 and $6,000. Until a qualified technician evaluates your property, it’s difficult (and darn near impossible) to provide an exact figure.
If you’re like most homeowners, you want a firm number as soon as possible. The truth is, several factors can dramatically impact the scope of work necessary to complete the job. And as complexity increases, you guessed it, so does the cost.
That said, there is one thing we can confidently tell you: watch out for bids that seem unusually low – or excessively high. A price under $5,000 or well above $20,000 often signals potential issues to come, whether it’s cutting corners or unnecessary work. Reliable contractors will offer competitive prices that reflect both their expertise and the true demands of the job.
Deeper pipes – typically over 5 feet – require more extensive excavation, larger equipment, and safety measures like trench shoring, which increases both labor and time.
Simple depth assessments, like measuring from the surface to the cleanout, can help estimate the complexity of work.
The longer the sewer line, the more materials, excavation, and backfill are required. A short, accessible run will cost significantly less than a line that extends through the yard or under the street.
Easy-to-access lines under a simple lawn are cheaper to replace than those beneath trees, patios, or driveways. Wherever the line runs, excavation and restoration (e.g. repaving, landscaping) can be major cost drivers – especially when the line passes under public roads.
Climate significantly influences burial depth – southern homes may need only 2-4 ft, while northern homes bury pipes deeper to prevent freezing. That extra depth translates directly to increased cost.
Many municipalities mandate materials like PVC or cast iron. PVC is the standard – affordable, durable, and long-lasting – while cast iron, though still required in some areas, is heavier, costly, and prone to corrosion.
Want answers to your pricing questions before scheduling a consultation? We would, too. To ballpark your sewer line replacement cost, you’ll want to assess the 5 key factors that influence project complexity and price, and how they apply to your home:
At Mattioni, we’ve been helping homeowners navigate big decisions like these for over 75 years. We take the time to assess your unique situation, recommend the most effective approach, and provide transparent, upfront pricing. Our mission is to help you make a confident, informed choice that protects your home and your investment for years to come.
Replacing your home’s sewer line may not be the most glamorous investment, but it’s one of the most impactful. Beyond fixing immediate issues like clogs and backups, a properly installed sewer line brings lasting advantages that protect your home, your budget, and your peace of mind for decades. Here’s what you can expect from this foundational upgrade.
A failing sewer line can quietly erode the value of your home – especially if it results in water damage, foul odors, or yard disruptions. Installing a new sewer line not only resolves these risks but also reassures potential buyers that a major system has already been addressed. While it may not significantly increase your home’s appraised value, it absolutely protects it from preventable loss.
Once your sewer line is replaced, the constant worry about clogs, overflows, or emergency calls disappears. You’ll enjoy consistent drainage, fewer plumbing disruptions, and the confidence that your home’s wastewater system is functioning as it should. It’s a behind-the-scenes benefit that makes daily living more comfortable and worry-free.
A new line eliminates the root intrusions, pipe collapses, and corrosion that cause backups. This translates into fewer slow drains, gurgling sounds, or unpleasant surprises in the basement – especially after heavy rain or high usage periods.
Old pipes often have compromised slope, buildup, or misalignment. A new line ensures optimal pitch and smooth internal surfaces, which means faster, more efficient waste removal from your home. That improved flow helps your entire plumbing system work better and reduces stress on connected fixtures.
Older lines often require ongoing maintenance – snaking, spot repairs, etc. – that can add up over time. A new sewer line dramatically reduces these recurring costs, giving you a longer-lasting solution and saving money in the long run.
Some homeowners insurance policies factor in the condition of underground utilities. A documented, recent sewer line replacement can strengthen your position when applying for coverage or making claims, especially if you’re proactive in documenting the project and its warranty.
A structurally sound sewer line reduces the risk of leaks or groundwater contamination. That protects your yard, your neighbors’, and your local ecosystem. In some municipalities, efficient lines can also reduce your contribution to overburdened public systems during storms.
If you’re planning to sell in the future, a recent sewer line replacement is a major plus during inspections. Buyers and real estate agents see it as one less big-ticket item to worry about – often tipping the scales in your favor during negotiations.
Only toilet paper should go down the toilet – avoid wipes, paper towels, and hygiene products. Chemical drain cleaners and root killers can also corrode your new sewer line and often do more harm than good. It’s also a good idea not to pour grease down the kitchen sink.
Trees love sewer lines. Their roots seek moisture and can invade small cracks or joints. Avoid planting trees near your new sewer path and keep an eye on expanding root systems. Even new pipes can be vulnerable if roots go unchecked.
Every few years, it’s wise to schedule a professional camera inspection. A camera can detect early issues like buildup or minor offsets before they turn into major repairs. Routine cleanouts help maintain a healthy flow and prevent backups.
Gurgling, foul odors, and slow drains are red flags. Acting quickly can prevent full backups or pipe damage. An expert camera inspection identifies the problem right away – so you’re not left guessing.
A newly installed sewer line is built to last for decades – especially if it’s properly maintained. But even the most durable PVC system can develop problems over time if subjected to neglect, improper use, or physical damage. A few proactive habits can go a long way toward protecting your investment and preventing costly repairs down the line.
Replacing your sewer line is a major investment – and the contractor you choose will determine not just the price, but the quality, longevity, and peace of mind you get from the job. Before signing any agreement, take the time to evaluate your options carefully. Here’s how to spot trustworthy professionals and avoid shady service.
A reputable contractor won’t hesitate to answer your questions clearly and confidently. Here are a few to ask:
Asking these questions up front helps ensure transparency and avoids surprises once the job begins.
If a contractor gives vague answers, avoids questions, or rushes you to sign, proceed with caution. Extremely low bids often mean corners are being cut – either in labor, materials, or scope.
Another red flag: contractors who don’t offer camera inspections or can’t explain their plan in clear terms. If they’re unwilling to walk you through the process or show proof of proper licensing and insurance, it’s time to move on.
A professional contractor should provide more than just a lump-sum price. Look for a written estimate that breaks down what’s included: excavation, pipe materials, permits, restoration, and warranty coverage. If something isn’t spelled out, ask about it. Clarity up front is a sign of integrity and organization.
Reliable contractors stand behind their work. Ask about the length and terms of their warranty – many offer multi-year coverage, while others may provide longer guarantees on materials or workmanship.
Always verify that the contractor is licensed, insured, and familiar with local building codes and permitting procedures. A good relationship with township inspectors is another indicator of professional standing.
Some companies outsource sewer line replacements without disclosing it. That can mean less control, lower quality, and more confusion if issues arise. Always confirm who will be doing the actual work on your property – and who will be responsible for follow-up if needed.
This is your home. You deserve to feel confident in the people working on it. If something feels off during your consultation – whether it’s pressure tactics, rushed timelines, or vague answers – trust your gut. A good contractor will take the time to educate you, answer your questions, and make you feel secure every step of the way.
Family Owned and Operated Since...
Mattioni has seen many changes throughout our history, but one thing remains the same: our dedication to our customers.
Now in our third generation of family ownership, Mattioni continues to hold our values above all else.
All of our plumbers and sewer technicians graduate from a rigorous training and apprenticeship program led by our master plumbers. All of our staff participate in continued training, so that we can continue to bring our customers a 5-star experience.
We proudly serve homeowners in Chester, Delaware, Montgomery and parts of Bucks counties.
Our mission remains simple: provide high quality home services, because everyone should have a comfortable house to call home.
Simply put, our services are guaranteed to go swimmingly.
