Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Sydney Plumber Blocked Drains on 10 Dec 2025

When it comes to fixing damaged pipes options are pipe relining or pipe replacement. Both of these methods are designed to restore the function of your pipes, however they differ in a way that are important to understand.

Key Takeaways

  • Relining pipelines is a cost-effective and quick method of repairing damaged pipelines.
  • Linings made of CIPP are used for pipe relining.
  • Epoxy resin is used to line the inside portions of the pipe. It is cured to form a new inner lining in the pipe.
  • Relining pipelines is time-efficient, economical, and can last for up to 50 years.
  • Traditional pipe replacement involves digging up portions of property in which pipes are situated.
  • The replacement of pipes is often necessary for severely damaged pipes.
  • A new pipeline installed through pipe replacement has a lengthy time span (75 to 100 years).
  • The cost of replacing pipes is high and lengthy.
  • The choice between pipe relining and pipe replacement will depend on the severity of damage that has been caused.

In this post, we’ll look at pipe relining in comparison to. pipe replacement and find out which option will meet your requirements more.

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

Relining pipes or Cured-In Place Pipe (CIPP) lining is a modern repair method that provides a cost-effective, fast solution for repairing damaged pipelines.

Here’s how it will work:

  1. A technician cleans the pipeline with high-pressure 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 pipeline that’s as strong as a brand new one.

The advantages of Pipe Relining

  • Time-efficient: It generally takes just 2 to three hours in order to finish the whole process compared with excavating for several days with traditional pipe replacement techniques.
  • Cost-effective - Because there is no excavation or removal necessary for pipe relining this method can save nearly half of the amount you have to pay for repairs that are traditional.
  • Durability – The new lining that is created by pipe relining may last up to 50 years!

Con’s of Pipe Relining

  • Not suitable for very damaged pipes. If there are significant damages such as cracks, collapses, or misaligned joints in your sewer line, then pipe relining might not be feasible.

What exactly is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. These areas could contain broken pipes, or very damaged ones caused by the effects of time or neglect.

The following steps are typical of traditional replacements for pipes:

  1. An excavation team digs up access to the degraded underground pipe.
  2. The pipeline that was previously in use is detachment and dug out producing much debris that needs to be disposed of.
  3. Then, they construct a new pipeline in place of the one they had previously installed.

Benefits of Pipe Replacement

  • Perfect for severely damaged pipes - When you need to replace pipes with significant corrosion or damage, pipe replacement is the best solution.
  • Long lifespan – The new pipeline replaced with pipe has a long life (75 or 100 years) which makes it a great solution for homeowners who want an option that is long-lasting.

Cons of Pipe Replacement

  • The work of excavation required for the replacement of pipes is costly and time-consuming.
  • Time-consuming – Traditional pipe replacements can take weeks depending on the nature of the project and the depth of excavations that are required.

Which option should you pick?

The choice between the option of relining or replacing your pipes mostly is contingent on the extent of damage caused. If your pipes suffer from minor damage, such as cracks or leaks of a minor size, relining would probably be the better option since it is less costly as well as quicker than replacement of pipes using traditional methods.

However, if you have severe damage such as breaks or collapses, then you should consider 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

Common Questions & Answers

What is the process of relining pipes?

Relining of pipes is a procedure that creates a brand new pipe in the damaged pipe. It is accomplished by inserting a liner that is flexible into the old pipe and curing it in place. After curing, the new pipe is completely free of joints and seams, which enhances the structural integrity of the pipe.

What is the difference between traditional pipe replacement and differ from relining pipe?

Traditional replacement of pipes involves digging and physically cutting away the old pipe, before replacing them with new ones. The alternative, pipe relining does not require excavation. Instead it’s accomplished with the help of technology, which allows pipe repair without digging up large areas of land.

Which option is less expensive: the pipe relining method or traditional pipe replacement?

Relining pipes typically cost less than the traditional methods of repair of pipelines because there are no costs associated to excavation or other methods needed for removing and replacing old pipes.

Can all kinds of pipes be reflined?

Certain types of pipes can be relined successfully. Your plumber should examine the situation to determine if it’s possible to line your specific type of pipes. However, most contemporary pipes are relined by this procedure.

How long does the pipe relining process take?

The exact duration of the procedure varies based on elements like location, environment and type of damage; however the average Pipe Relining job usually takes 2-3 days based on the amount of metres require lining..

In conclusion, if wish to avoid digging work and save your money while restoring your damaged pipelines’ functionality Consider utilizing our Sydney Plumber Blocked Drains ‘s quick and efficient pipe relining services. Contact us!

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