Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Melbourne Blocked Drains Plumbing on 20 Nov 2025

When it comes to fixing damaged pipes methods are pipe relining and replacement of pipes. Both of these methods are designed to restore the full function of your pipes, however there are distinct differences must be aware of.

Key Takeaways

  • Pipe relining is an economical and fast method for repairing damaged pipelines.
  • The lining of CIPP is utilized in the relining of pipes.
  • Epoxy resin is used to line the internal parts of the pipe. The resin is cured to form a new inner lining inside the pipe.
  • Relining pipelines is time-efficient, cost-effective and lasts for up to 50 years.
  • Traditional pipe replacement involves excavation of areas on the property in which pipes are situated.
  • Replacement of pipes may be required for pipes that are badly damaged.
  • A brand new pipeline that is installed by pipe replacement has a long life span (75 up to 100 years).
  • Pipe replacement is costly and lengthy.
  • The choice between pipe relining and pipe replacement depends on the level of damage.

In this article, we’ll discuss pipe relining vs. pipe replacement and find out which option will meet your needs better.

The term "pipe relining" is used to describe the process of repairing pipes.

Pipe relining or Cured In-Place Pipe (CIPP) Lining is a cutting-edge repair method that provides a cost-effective, fast solution for repairing damaged pipelines.

Here’s how it will work:

  1. Technicians clean the pipeline by using high-pressure water jetting or mechanical cleaning.
  2. Then, they put epoxy resin made of polyester or fiberglass liner inside the pipeline.
  3. The liner gets cured to form a brand new inner lining inside the old pipeline that’s just as robust as a new one.

Benefits Pipe Relining

  • The process is time-efficient, taking just 2 to 3 hours to complete the whole process compared with excavating for days in traditional methods of replacing pipes.
  • Cost-effective since there is no excavation or removal needed in the pipe relining process, it can save almost half of the amount you have to pay for repairs that are traditional.
  • Durability – The new liner created through pipe relining can last for 50 years!

The cons of Pipe Relining

  • Not recommended for extremely damaged pipes. If you have significant damage such as cracks, collapses or joints that are not aligned correctly within your sewer line then pipe relining is not a possibility.

What is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. These areas could contain collapsed pipes or extremely damaged ones caused by age or neglect.

The following steps make up the majority of traditional replacements for pipes:

  1. An excavation team digs access to the decayed underground pipe.
  2. The pipeline that was previously in use is detachment and dug out producing much debris that requires disposing of.
  3. Then, they install another pipeline in place of the previous one.

Pros and Cons of Pipe Replacement

  • It is suitable for pipes with severe damage - When you need to replace pipes that are experiencing significant corrosion or damage, pipe replacement is the best option.
  • Long-lasting – The latest pipeline that is installed by pipe replacement has a long lifespan (75 or 100 years) making it an ideal choice for homeowners in search of a permanent solution.

Pros of Pipe Replacement

  • The work of excavation required to replace pipes can be lengthy and expensive.
  • Long-lasting – Pipe replacements can take weeks depending on the extent of work and the extent of excavation required.

Which one should you select?

The decision to choose between relining or replacing your pipes mostly is contingent on the level of damage caused. If your pipes suffer from minor damage, such as cracks or leaks that are minor, it is likely that relining is the best option, as it’s less expensive and also quicker than traditional pipe replacements.

However, if you have severe damage such as breaks or collapses the best option is traditional pipe replacement although it may be more expensive and will take longer.

Pipe Relining Pipe Replacement
Procedure CIPP lining using epoxy resin Excavating and replacing the old pipeline
Pros Time-efficient- 2 to 3 hours to complete Suitable for severely damaged pipes
Cost-effective – Almost half of traditional costs. New pipeline lasts for 75 to 100 years
Durable – Lasts up to 50 years
Cons Not suitable for severely damaged pipes Costly
Time-consuming
When to choose Minor damages like cracks or minor leaks Severe damages like collapses or breaks

Frequently Asked Questions

What is pipe relining?

Relining pipes is a process which involves the creation of a new pipe inside the existing damaged pipe. It is accomplished by inserting a liner that is flexible into the old pipe and placing it into place. After curing, the new pipe has no joints or seams, which enhances its structural strength.

What does traditional pipe replacement differ from pipe relining?

Traditional pipe replacement involves digging and physically cutting away the old pipe, and then replacing them with brand new ones. However, pipe relining isn’t a requirement for excavation. Instead it’s accomplished using technology that allows for repairs to pipelines without digging huge areas of land.

Which is more cost-effective - liner relining or conventional pipe replacement?

Relining pipelines typically costs less than the traditional methods of repair to pipelines since there is no cost related to excavation or other methods required for the removal and replacement of old pipes.

Can all types of pipes be relined?

There are a few types of pipes that are relined in a successful manner. Ultimately, your plumber will have to inspect your situation to determine if it’s feasible to line your specific type of pipes. However, the majority of contemporary pipes are repaired using this procedure.

How long will the process of pipe relining take?

The exact length of time needed for the procedure varies based on factors such as the location, the environment and the kind of damage. However, the average pipe Relining process typically takes about 2 days depending on how many meters need to be lined..

In conclusion, if you wish to avoid digging work and save money while restoring your damaged pipelines’ performance to their fullest take a look at our Melbourne Blocked Drains Plumbing ‘s quick and efficient pipeline relining services. Contact us!

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