How to Fix a Cracked Sewer Pipe: Expert Advice from Almco Plumbing
Look, a cracked sewer pipe is one of those hidden problems at home, and if you let it go, it can quickly blow up into a really expensive mess. This critical line quietly moves waste away from your place, buried underground, until suddenly something goes wrong. Cracks can pop up because materials get old, the soil shifts, or corrosion sets in. You’ll see slow drains, bad smells, maybe even sewage backing up.
But here’s the thing, cracked pipes don’t always mean you need a huge excavation or a massive bill. In this post, we’re gonna lay out how to figure out what’s wrong and what your options are for fixing it, from easy DIY cracked sewer pipe repairs to the more professional stuff.
Contents
What Causes a Cracked Sewer Pipe-and Why It Matters
If you’re stuck dealing with a cracked sewer pipe, just know you’re not by yourself. This is a pretty common plumbing headache, and it can turn into serious trouble fast if you don’t jump on it.
Here are some of the most common reasons a sewer pipe might crack:
- Shifting Soil or Foundation Movement: Over time, the ground around your home can settle, shift, or expand. This puts pressure on underground pipes and can lead to cracks or misalignment.
- Aging or Corroded Pipes: Sewer systems made with older materials, such as clay, cast iron, or galvanized steel, are more prone to deterioration. As these materials weaken, cracks can develop more easily.
- Improper Installation: A sewer line that wasn’t installed correctly may develop issues early on. Poor sealing, misaligned joints, and low-quality piping increase the risk of a cracked sewer pipe.
- Excessive Surface Pressure: Parking heavy vehicles or building large structures on top of your sewer line can put stress on the ground underneath. Over time, this pressure can lead to a pipe cracking or collapsing.
A cracked sewer pipe can bring on sewage backups, nasty water damage, and really foul odors in and around your house. You can find more about the typical signs of sewer damage here. Understanding what makes a pipe break is always the first step, it helps you find the right fix and stops more damage down the road.
Fixing a Broken Sewer Pipe: Should You DIY or Hire a Plumber?
So, you’ve found a cracked sewer pipe, and the first thing you’re probably asking yourself is if you can just fix it or if you need to call in a plumber. The honest answer totally depends on where the damage is, how bad it is, how easy it is to get to, and how comfortable you are with your tools.
A DIY fix might work if:
- The crack is small and easy to reach (e.g., in a basement, crawl space, or exposed piping)
- You caught the problem early, before any major leaks or structural damage occurred
- You have basic plumbing experience and the right tools on hand
Common tools and materials for DIY sewer pipe repair include:
- Epoxy putty or pipe repair kits
- Pipe repair tape (silicone or fiberglass)
- Rubber couplings or flexible pipe sleeves
- An adjustable wrench and a screwdriver set
- A hacksaw or a pipe cutter (for section replacement)
- ABS glue or PVC primer and cement (for PVC pipes)
- Work gloves and safety glasses
Keep in mind that DIY solutions are usually temporary. It can stop a leak or delay damage, but it doesn’t always fix the underlying issue.
Call a plumber if:
- The pipe is underground, behind walls, or otherwise not visible
- You notice signs of serious damage, such as sewage smells, yard sinkholes, mold, or water damage inside
- The crack is more than just a surface issue, such as collapsed or corroded sections
- You want a long-lasting solution, such as trenchless pipe lining or whole-house pipe replacement
Professional plumbers, such as Almco Plumbing, have specialized tools-including sewer cameras, leak detection equipment, and trenchless technology. Most importantly, they have the expertise to ensure your cracked sewer pipe is fixed safely and permanently.
Simple DIY Fixes for a Cracked Sewer Line
Like we said, DIY fixes are mostly just for the short term. Still, they can definitely stop things from getting worse until you can get a more permanent repair done. Sometimes, for super tiny cracks, they even hold up as a lasting fix.
Here are some of the most common DIY methods for fixing a cracked sewer pipe.
1. Epoxy Putty or Repair Wrap
Great For: Small surface cracks on pipes you can actually get to.
How It Works: You just slather the epoxy putty right over the crack. It hardens fast, making a good water-resistant seal.
Pros: Easy to put on, won’t break bank, and a quick fix.
Cons: It’s temporary, so it might not hold up against long-term pressure or active leaks.
2. Pipe Repair Tape
Great For: Little cracks or small leaks on plastic or metal pipes.
How It Works: You wrap self-fusing silicone or fiberglass repair tape super tight around the cracked part, sealing it up as it stretches and sticks to itself. It’s pretty straightforward.
Pros: No tools needed, flexible, and fast.
Cons: Only works on clean, dry surfaces; not good for serious damage.
3. Rubber Couplings & Clamps
Great For: Cracks that are a bit bigger or for joining two pipe sections you’ve cut.
How It Works: You cut out the damaged part of the pipe, then link up the two ends using rubber couplings that you secure with metal clamps. It’s a pretty solid method.
Pros: Durable and watertight; can be used for temporary or long-term fixes.
Cons: You need access to the pipe and gotta be able to cut and line up those pipe sections right.
4. Spot Replacement of Pipe
Great For: Bigger visible cracks or pipe pieces that are really messed up.
How It Works: You just cut out the cracked part of the sewer pipe and swap it with new piping, using connectors or couplings to join it up, or even welding it, depending on what the pipe’s made of.
Pros: A strong, lasting solution if you install it correctly.
Cons: Takes more time and needs some real plumbing skills.
Caution! Always wear protective gear and turn off the water supply before starting any repair.
Keep in mind that DIY sewer pipe repairs only work if the crack is small, above ground, and easily accessible. If the pipe is underground, leaking heavily, or showing signs of collapse, call a professional.
Professional Repair Methods for a Cracked Sewer Pipe
Licensed plumbers, like us over at Almco, use some pretty advanced techniques to fix those cracks and get your plumbing system’s strength and lifespan back. These are the most common and effective professional ways to fix cracked pipes.
1. CIPP (Cured-in-Place Pipe) Lining
This one’s best for minor to moderate cracks in sewer or drain pipes, especially those buried underground. We slide a resin-soaked liner into the messed-up pipe, then inflate it and cure it right there. It forms a strong, totally seamless new pipe right inside the old one. It’s a game-changer.
Why It’s Effective: No digging, that’s a big one, plus it gives you decades of durability with hardly any mess.
2. Epoxy Pipe Lining
This is ideal for cracks and corrosion in pipes (especially cast iron) that haven’t completely caved in. After we clean out the inside of pipe, plumbers spray it with liquid epoxy, which then hardens up and seals all the cracks from the inside out. It’s pretty neat how it works.
Why It’s Effective: It’s non-invasive, fights corrosion, and really extends the life of those older pipes without needing to dig anything up.
3. Sectional Pipe Replacement (Traditional Repair)
This method works best for big, isolated cracks in pipes that are out in the open, above ground. We cut out the damaged section of pipe and just replace it with a new piece, joining it up with couplings or even welding it, depending on what the pipe’s made from. It’s a classic for a reason.
Why It’s Effective: It gives you a permanent, straight-up fix, which is perfect when you can easily get to the pipe.
Professional cracked pipe repair methods are designed not only to solve the immediate problem but also to prevent future plumbing issues, saving you time, stress, and money in the long run.
DIY Repair Cost vs. Professional Methods: What to Expect
The money difference between doing it yourself and bringing in a pro is usually the biggest thing people think about when picking a method. While DIY fixes might seem cheaper right away, they aren’t always the smart money choice over time.
Here’s an approximate breakdown of typical costs and what each choice includes.
DIY Pipe Repair: Easy on wallet, but limited.
Estimated Cost: 20-150+ (just for materials and tools if you don’t already own ’em).
It’s a cheap, quick patch-up for small, visible cracks. But a big problem is it’s often just a temporary fix, which means you could end up paying way more for a real repair later on. That’s how it goes.
Professional Repair: Costs more, but lasts longer.
Estimated Cost: 300-8,000+ (this depends on the method and how bad it is). For example:
- Video Camera Inspection (Before Repair): 150-500
- Epoxy Pipe Lining: 1,000-4,000+
- CIPP Lining: 2,000-6,000
- Sectional Replacement (Minor Excavation): 500-2,000
These are the long-lasting or permanent solutions, they’re backed by warranties and professional installation that really get to the bottom of the damage. They do need a bigger investment upfront, some flexibility with scheduling, and access to your property.
So, if that cracked pipe is small, you can see it, and it’s not leaking like crazy, a DIY fix can definitely buy you some time, especially if you’re good with basic tools. But for anything more serious or if it’s hidden, professional repair makes sure your plumbing system stays safe, up to code, and worry-free for many years to come.
In the end, the best way to go depends on how bad and where the crack is, your own skill level, and what you’re willing to spend. Don’t just sit around waiting for a small issue to turn into a giant headache-check things out carefully and move fast. If you’re ever in doubt, always talk to a trusted pro, like Almco Plumbing, to guarantee the job’s done right.
Your home’s plumbing system is one of its most important parts-it really needs the attention it deserves.


