How do you know if you have a broken sewer line under your house?

Author: Mr. Sim Hackett  |  Last update: Thursday, February 27, 2025

An obvious sign of a sewer issue is if you see sewage pooling in your yard. A lingering foul smell and puddles that don't dry up indicate you might have a cracked main sewer line. Pest Invasion. A damaged sewer line can also invite unwanted pests into your home.

How to tell if the main sewer line is broken?

The Top 10 Most Common Signs of Broken Sewer Lines
  1. Sewer Smell. Usually, one of the first signs of a sewer line is a bad odor. ...
  2. Gurgling Toilet. ...
  3. Pests in Your Home. ...
  4. Slow Drains. ...
  5. Sewage Backup in Your Toilet or Tub. ...
  6. Mold or Mildew On Your Ceilings or Walls. ...
  7. Cracks in Your Walls. ...
  8. Unusually Green Patches on Your Lawn.

How do you know if you have a broken pipe under the house?

A burst pipe can lead to standing water in hidden spaces, like the walls or under the floor. Stagnant water can create a foul smell that permeates your home. If you feel a musty or mildew-like odor but can't locate the source, you may have a hidden water leak caused by a burst pipe.

Does homeowners insurance cover broken sewer pipes?

Does homeowners insurance cover your sewer line if it's damaged? Damage to your sewer line may be covered by your policy if it is caused by perils such as hail or windstorms, explosions, lightning or fire, damages caused by vehicles, vandalism or falling objects.

How to fix a broken sewer pipe under a house?

The most effective way is to locate the pipes, and break the concrete enough to access them, excavate the soil and gravel, repair the pipes, and backfill, then pour new concrete over the open area, trowel it smooth and repair/replace any floor covering that existed before the work.

4 Signs That Tells You If Your Sewer Line Is Broken | CALL A PLUMBER

How much does it cost to replace a sewer line under a house?

When it comes to replacing a sewer line, there is no one-size-fits-all. On average, the cost of replacing a sewer line can range from $3,000 to $6,000, depending on several factors. The material type used in the replacement pipe is the most significant factor in determining the price.

How do you unclog a main sewer line under your house?

Your step-by-step guide: How to clear a main sewer line clog
  1. Loosen the cap on the drain pipe. ...
  2. Allow any sewer buildup to come out of the drain. ...
  3. Gently feed the auger cable into the main line drain. ...
  4. Run the auger until the clog is broken up. ...
  5. Hose out leftover debris. ...
  6. Pull the auger cable back out of the main line drain.

What happens if your sewer line breaks?

If your sewer line develops a problem under your home, it could lead to some serious foundation issues if left unchecked. If you're noticing cracks in your foundation, your broken sewer line has to be repaired as soon as possible. Left alone, it could cause further problems, such as sinkholes and home settling.

How much does insurance pay for sewer backup?

The average cost of water backup and sewer coverage may range from $50 to $250 per year, with limits of coverage from $5,000 to the full replacement cost of your home. Talk to your independent insurance agent to find the level of coverage that is right for you.

Are local governments responsible for paying for sewer line repairs?

Sewer laterals are the underground pipes that connect your home wastewater to the main sewer line in the street. Homeowners are responsible for their sewer laterals, while problems with the public sewer main line are managed by the city or municipality.

How much does it cost to fix a broken pipe under the house?

To fix a broken water pipe, homeowners can expect varying costs depending on the damage's severity and location. Minor DIY repairs might cost between $10-$50, while professional services range from $50 to $600, escalating in emergencies. For extensive damage, such as pipes under a foundation, costs can be $500-$4,000.

What happens when a pipe bursts under your house?

Water damage to your house's structure and interior surfaces: Water from the leak can seep into walls, ceilings, floors, the foundation, and cause a basement flood, which can weaken the structure's integrity. A deluge of water from a burst pipe can collapse a ceiling or walls.

How do plumbers fix pipes under house?

As we mentioned, the new pipe is pulled through the old pipe, bursting it in place with a new HDPE sewer pipe. Once the new pipe is inserted, the plumber ensures everything works correctly and does a camera inspection. We then backfill the access holes. Unfortunately, there is no way to remove the old pipe.

How do I find a broken sewer line?

It can typically be found in the basement, crawl space or garage. You will want to search for a pipe that is approximately four inches in diameter with a screw cap on the top that has a notch or square knob at the top. Note that some homes have an indoor sewer cleanout point, while others may be located outdoors.

What is the difference between a sewer line and a sewer main?

Main drains are located in the walls and floors of your home, while sewer line drains are located outside underground. Each drain pipe in your home is connected to a different household fixture on one end, including toilets, sinks and bathtubs, and the other end is connected to the main sewer line.

How do I know if my underground pipes are broken?

Signs of a Broken Underground Water Pipe
  1. Signs of Underground Water Leaks. If your lawn is irrigated and you notice areas that aren't getting enough water, check the sprinkler heads to make sure they aren't damaged. ...
  2. Standing Water in Your Yard. ...
  3. Moldy or Mossy Areas. ...
  4. Drop in Water Pressure. ...
  5. Other Signs of Water Problems.

How common is sewer backup?

Causes of sewer backups

While most basement water problems are not caused by sewer backups, the Civil Engineering Research Foundation reports that the number of backed up sewers is increasing at an alarming rate of about 3 percent annually. There are a number of causes of sewer backups—here are some of the most common.

Does homeowners insurance cover broken pipes under foundation?

If your slab cracks due to a covered hazard, like a pipe burst, homeowners insurance will likely cover the cost of tearing out and pouring new slab, but pipe repairs will likely not be covered. Slab and plumbing issues resulting from age or normal wear and tear are not covered by home insurance.

Who pays for sewage backup?

Every year, sewer backups cause damage to millions of households. Many homeowners may not know that they tend to be responsible for the maintenance and repair of the pipeline between their city's sewer main and their building, and if it gets damaged or clogged, it's financially their responsibility to remedy the issue.

How to detect a broken sewer line?

The most common sign of a sewer break is when you can see water coming up in your basement from the sewer pit, floor drain, through your walls, or on your sidewalk. Sewer breaks further out than your front yard will typically not surface due to the depth of the pipe.

Does homeowners insurance cover collapsed sewer lines?

Key takeaways. Homeowners insurance may cover sewer line damage if it stems from something already included in your policy, like a fire or windstorm. Sewer line damage that is the result of wear and tear is excluded from home insurance coverage.

What does a broken sewer line look like?

One of the most evident signs of a broken sewer or drain line is large visible cracking in the foundation. If a sewer or drain line leak goes untreated for an extended time, it may cause foundation cracks and sinkholes in the yard.

How much does it cost to unclog a main sewer line?

You will likely pay around $350 to $650 to have a plumber unclog a main sewer line unless you have complications like serious damage to the line.

Is my sewer line clogged or broken?

Multiple backed-up drains strongly indicate a clogged main sewer line. While a clogged toilet is a common plumbing issue, if you notice that your bathtubs, showers, and sinks are also draining slowly or backing up, it's likely a more significant problem.

How long does it take a plumber to unclog a main sewer line?

Clearing a clogged sewer line can take an hour to a few hours, depending on the blockage. If your lines are severely blocked, a video inspection and more advanced techniques may be necessary to find and address the clog.

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