Sewer Stack starting to leak and a barnacle has formed

Your sewer line is one of the most important parts of your property’s plumbing system. The sewer line is located underground and because of this, many owners fail to realize that something is wrong until it’s too late.

If you have cast iron pipes in your plumbing system, it would be wise to go through the following list and check whether or not you have to replace your sewer pipes:

  • Leak in the Pipes
  • Strange Water Color
  • Foul Odor
  • Growth of Mold
  • Sewage Backups
  • Sudden Green Patches
  • Damaged Structural Foundations

There are many parts that make up your sewer systems, like the drainpipe, vent pipes and vent stack. The vent stack, or drain-waste vent, serves two main purposes in your plumbing system: 1) it removes the sewage from your home, and 2) it releases noxious sewer gases outside.

Obvious Soil Stack crack shown here

When waste enters a toilet, sink or shower, it then exits through a dipped section of pipe underneath, called the trap. A trap is responsible for preventing sewer gases from leaking into your home or business. The trap is connected to the waste or sanitary line which takes the waste to a vent stack. At your building’s lowest point, the sewer stack is attached and rises to and out of the roof. This is how waste is removed from your home and then taken to the sewer main.

Damaged, clogged or ignored sewer stacks can cause serious property damage and significant health risks if not taken care of by a professional. While your sewer stack is typically a maintenance free component of your property when something does go wrong, your plumbing system will be disrupted, and you’ll notice right away because of the awful smell.

Q&A for Cracked Sewer Pipe Repairs, Soil Stack Replacements and Soil Stack Repairs

Q: How do you know if your soil stack requires a cracked sewer pipe repair in the wall?

A: If the obvious acrid smell doesn’t give it away, bubbling or gurgling noises from your drain is another sign that it’s time to proceed with a new soil stack installation or repair. The cost of a main soil stack plumbing vent stack repair installation can vary greatly, and it is best to contact a #1 Rated Master Plumber to get your soil stack installation done quickly and correctly.

Q: How much soil stack replacement or repair typically cost?

A: The standard range of a soil stack replacement or repair is usually $1,225 – $2,869.

Q: What is a stack in plumbing?

A: A “stack” is described as the vertical section of a plumbing drainage system of soil, waste or vent piping rising through one or more stories of a building. The stack is the largest vertical pipe into which all the horizontal pipes either drain or vent.

Q: Do sewer pipes crack in walls?

A: Absolutely! A cracked sewer pipe behind a wall can cause the humidity levels to rise to a point where mold can become an issue. If you start to notice mold growth, musty smells or any sewer odors then you likely have a break in your sewage drain pipes.


Q: Why do cast iron sewer pipes crack?

A: Many houses with cast iron plumbing were built before 1980. In some cases, the metal will continue to deteriorate as wastewater runs through it. The cast iron on each side of the cast iron pipe can be caused to crumble or crack at the weakest point or thinnest part of the casting where the sections are molded. If you think you need to repair a cracked cast iron pipe, schedule an appointment immediately.

At Fosh Plumbing & Heating Inc., we have been serving residential and commercial clients in and around Delaware County, PA and Montgomery County, PA since 1997. Our goal is to always provide the highest level of customer satisfaction to all of our clients. Our industry knowledge, expertise, affordable pricing and dependable service is what sets us apart from the rest. Whether you are looking to do a soil stack replacement, are interested in cracked sewer pipe repairs or may need to repair cracked cast iron pipes, contact the experts at Fosh today for all your plumbing needs.

Above Soil stack shown cut out with interior full of rust and buildup

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