Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Perth Blocked Drains Plumbing on 6 Feb 2026

In the case of fixing damaged pipes techniques are pipe relining as well as replacement of pipes. Both solutions aim to restore the full function of your pipelines, but they differ in a way that must be aware of.

Key Takeaways

  • Relining pipelines is a cost-effective and speedy method to repair damaged pipelines.
  • The lining CIPP is employed in pipe relining.
  • Epoxy resin is used to line the internal parts of the pipe which sets to create a brand new inner lining in the pipeline.
  • Pipe relining is time-efficient, economical, and can last for up to 50 years.
  • Traditional pipe replacement involves excavation of areas on the property in which pipes are located.
  • Pipe replacement may be necessary to repair pipes that are severely damaged.
  • A brand new pipeline that is installed by pipe replacement has a long lifespan (75 -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 in comparison to. pipe replacement. Find out which one suits your requirements more.

What is Pipe Relining?

Pipe relining, also known as Cured-In-Place pipe (CIPP) Lining is a state-of-the-art repair process that offers a cost-effective and swift solution for restoring damaged pipelines.

Here’s how it will work:

  1. Technicians clean the pipeline with high-pressure jetting or mechanical cleaning.
  2. Then, they put epoxy resin made from fiberglass or polyester liner in the existing pipeline.
  3. The liner gets dried to form a brand new inner liner within the old pipeline that’s as strong as a brand new one.

Benefits Pipe Relining

  • Time-efficient – It usually takes only 2 to three hours in order to finish the whole process, as opposed to digging for days in traditional methods of replacing pipes.
  • Cost-effective because no excavation or removal is required in pipe relining It can save you nearly half of the price you’d pay for traditional repairs.
  • Durability – The new lining made by pipe relining could last for 50 years!

Pros and Cons of Pipe Relining

  • Not suitable for the most damaged pipes - If there are major 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 collapsed pipes or extremely corrosion-prone ones, due to lack of maintenance or age.

The following steps comprise most traditional replacements for pipes:

  1. A team of excavation workers digs access to the degraded underground pipe.
  2. The pipeline was ripped off and dug out producing much debris which needs to be removed.
  3. Then, they construct the new pipeline on top of the previous one.

Benefits of Pipe Replacement

  • Suitable for severely damaged pipes Ideal for severely damaged pipes – If you must replace pipes that have significant damage or corrosion, pipe replacement is the best option.
  • Long lifespan – The new pipeline that is installed by pipe replacement is long-lasting (75 up to 100 years) making it an ideal alternative for homeowners seeking the best solution for their home.

Pros of Pipe Replacement

  • Costly – Excavation work requred for pipe replacement could be lengthy and expensive.
  • Time-consuming – Traditional pipe replacements could take several weeks, based on the extent of work and the extent of excavation required.

Which one is best for you?

The decision of the option of relining or replacing your pipes mostly depends on the level of damage caused. If your pipes are suffering from minor damages like cracks or leaks that are minor, relining would probably be the best option, as it is less costly and faster than traditional pipe replacements.

If there are major damage, such as collapses or broken pipes, then you should consider conventional pipe replacement, though it might cost more and may 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

FAQs

What is pipe relining?

Relining a pipe is a process which involves the creation of a new pipe within the existing damaged pipe. It is accomplished by inserting a flexible liner inside the old pipe and placing it into place. After it has been cured, the newly formed pipe is free of joints or seams which improves the structural integrity of the pipe.

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

Traditional pipe replacement involves physically removing old pipes before replacing them with new ones. However, pipe relining doesn’t require excavation; instead it’s accomplished using technology that allows for repairs to pipelines without digging large areas of land.

Which one is less expensive - pipe relining or traditional pipe replacement?

Relining pipes typically cost less than traditional methods for pipeline repair as there aren’t any costs related to excavation or other procedures required for the removal and replacement of old pipes.

Can all kinds of pipes be reflined?

There are a few types of pipes that can be successfully relined. The plumber will have to inspect your pipe to determine if it is feasible to line your specific type of pipes. But, the majority of modern pipes can be relined using this method.

How long does the process of relining pipes take?

The exact length of time needed for the process is dependent on various variables like location, environmental conditions and the kind of damage; however, the average Pipe Relining job usually takes 2-3 days depending on how many meters need to be lined..

In conclusion, if want to avoid invasive excavation work and save money while restoring your damaged pipelines’ function to its maximum take a look at our Perth Blocked Drains Plumbing ‘s fast and effective pipe relining solutions. Contact us!

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