Fixing broken sewer pipes with Relining

Upgrade your pipe repair services with Repiper’s step-by-step pipe relining method, tools, and products for fixing broken sewer pipes under houses and insides properties.

How to fix broken sewer pipes under a house using relining

  1. Inspection: Before the relining can begin, a thorough inspection of the broken pipes is performed using specialized cameras. This helps to determine the extent of the damage and plan the broken sewer pipe repair accordingly.
  2. Cleaning: The pipes are then thoroughly cleaned using high-pressure water. This step ensures that the new liner will adhere properly.
  3. Preparation of the liner: A flexible liner, saturated with a two-part epoxy resin, is prepared. The liner is custom-made to match the length and diameter of the broken sewer pipe being repaired.
  4. Insertion: The saturated liner is inserted into the broken pipe using a technique called inversion, or it may be pulled into place. The method used depends on the pipe’s specific conditions and requirements.
  5. Inflation: Once in place, the liner is inflated using an air or water bladder. This presses the epoxy-soaked liner against the inner walls of the broken sewer pipe.
  6. Curing: After inflation, the liner is left to cure. During this time, the epoxy hardens, forming a robust, resilient, and seamless pipe within the existing pipe.
  7. Final inspection: Once the liner has fully cured, a final inspection is performed using the specialized cameras. This ensures that the broken sewer pipe repair process has been successful and the new pipe is ready for use.



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When properly installed and maintained, a broken sewer pipe repair using relining can last upwards of 50 years. The exact duration can vary depending on factors such as the quality of the installation, the condition of the existing pipe, and the nature of the soil and groundwater conditions surrounding the pipe.

Yes, sewer pipe relining can often be a more cost-effective solution than full pipe replacement, especially for long runs of pipe or broken sewer pipes under a house, or located under structures or hardscaping. The relining process tends to be faster and less disruptive, which means reduced labor costs and less inconvenience. However, if the pipe is severely damaged or collapsed, full pipe replacement may be the only viable solution.

The time taken to reline a sewer pipe can depend on several factors such as the length and diameter of the pipe, the degree of damage, and the working conditions. However, typically, a sewer pipe can be relined in a single day. For larger or more complex projects, it might take a couple of days.

Other terms related to sewer pipe relining include “Cured-In-Place Pipe” (CIPP), which is a method used in pipe relining; “lateral lining,” referring to the relining of the lateral connections from a building to the main sewer line; and “trenchless technology,” the broad category of methods that allow pipe repair or replacement without extensive excavation.

  • Age: Sewer pipes are built to last, but over time, they can deteriorate and become more susceptible to cracks, leaks, and breaks. If the sewer pipe is over 50 years old, it may be more prone to failure.
  • Tree roots: Trees and shrubs have powerful roots that can grow into a sewer pipe and cause damage. As the roots grow, they can put pressure on the pipes, causing them to crack or break.
  • Ground movement: Changes in the ground, such as soil settling, earthquakes, or construction work, can put stress on sewer pipes, leading to cracks or breaks.
  • Corrosion: Pipes made of certain materials, such as cast iron or galvanized steel, can corrode over time, leading to weak spots and eventually, breaks.
  • Blockages: Over time, debris and other materials can build up in your sewer pipe, causing blockages and putting pressure on the pipes. If left unchecked, this pressure can cause the pipes to crack or break.
  • Temperature changes: Sudden, extreme changes in temperature can cause pipes to expand and contract, which can lead to cracking.
  • Poor installation: If a sewer pipe was not installed correctly, it might be more prone to breaking.

The sooner you can detect a broken sewer pipe, the better chance to minimize damage to the property. Here are some signs to look out for:

  • Unusual odors: A strong sewage smell can indicate a broken sewer pipe.
  • Slow drainage: If your sinks or bathtubs are draining slowly, this could be a sign of broken pipes.
  • Damp spots in the yard: Unusually damp or soggy areas in the yard could be a sign of a sewage leak.
  • Unusual sounds: Bubbling or gurgling noises from your toilets or drains can also indicate a broken sewer pipe.