Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Perth Blocked Drains Plumber on 24 Nov 2025

In the case of fixing damaged pipes, two popular options are pipe relining or replacement of pipes. Both solutions aim to restore the functionality of your pipes, however there are distinct differences you need to know.

Key Takeaways

  • Relining pipelines is a cost-effective and swift process for restoring damaged pipelines.
  • CIPP lining is used in pipe relining.
  • Epoxy resin is used to line the inside parts of the pipe which sets to create a brand new inner lining within the pipeline.
  • Relining pipe is time-efficient and cost-effective, and will last for up to 50 years.
  • The traditional method of replacing pipes is digging up portions of property where pipes are located.
  • Pipe replacement may be necessary for severely damaged pipes.
  • A new pipe installed via the replacement of a pipe has a long life span (75 -100 years).
  • The cost of replacing pipes is high and lengthy.
  • The decision between pipe relining and pipe replacement is based on the extent of damage.

In this article, we’ll talk about pipe relining in comparison to. replacing pipes and figure the one that best suits your requirements better.

What is Pipe Relining?

Pipe relining or Cured-In-Place Pipe (CIPP) Lining is a modern repair method which offers a low-cost and fast solution for repairing damaged pipelines.

Here’s how it is done:

  1. Technicians clean the pipeline with high-pressure water jetting or mechanical cleaning.
  2. Then, they place epoxy resin made from fiberglass or polyester liner to the existing pipeline.
  3. The liner cures 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 generally takes just 2 to 3 hours of time to accomplish the entire procedure compared to excavating days for traditional pipe replacement methods.
  • Cost-effective because there is no excavation or removal required in pipe relining this method can save nearly half of the amount you have to pay for repairs that are traditional.
  • Durability – The new liner that is created by pipe relining may last for up to 50 years!

The cons of Pipe Relining

  • Not suitable for severely damaged pipes. If there are major damages such as cracks or collapses or joints that aren’t aligned properly within your sewer line then pipe relining is not a possibility.

What exactly is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. The areas may contain broken pipes, or very corrosion-prone ones, due to lack of maintenance or age.

The following steps make up the majority of traditional pipe replacements:

  1. An excavation team digs up access to the decayed 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. They then install another 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 ideal solution.
  • Long lifespan – The new pipeline installed through pipe replacement has a long life (75 up to 100 years) making it an ideal solution for homeowners who want an option that is long-lasting.

Cons of Pipe Replacement

  • Extraction work that is costly for pipe replacement can be costly and time-consuming.
  • Time-consuming – Traditional pipe replacements can take a few weeks based on the size of the work and the extent of excavation required.

Which one should you choose?

The decision of either relining or repairing your pipes is mostly based on the extent of damage caused. If your pipes are suffering from minor damages like cracks or leaks of a minor size, relining would probably be an ideal option as it’s less costly as well as quicker than traditional replacements.

However, if there are serious injuries, like breaks or collapses, then you should consider replacing the pipe with a traditional method, even though it might cost more 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

FAQ

What is the process of relining pipes?

Relining a pipe is a procedure which consists of creating a new pipe in the damaged pipe. This is done by inserting a flexible liner into the old pipe and curing it in place. Once cured, the new pipe does not have joints or seams, which enhances its structural integrity.

What does traditional pipe replacement differ from pipe relining?

Traditional replacement of pipes involves excavating and physically removing old pipes, and then replacing them with brand new ones. Contrary to this, pipe relining doesn’t require excavation; instead it’s done using technology that allows for repairs to pipelines without digging large areas of land.

Which is more cost-effective - the pipe relining method or traditional pipe replacement?

Relining pipes typically cost less than traditional methods for repair of pipelines because there aren’t any costs related to excavation or other methods needed for removing and replacing old pipes.

Can all kinds of pipes be changed?

Not all types of pipes are relined effectively. Ultimately, your plumber must examine your pipe to determine if it is feasible to line your particular type of pipes. However, most modern pipes can be lined using this procedure.

How long does the pipe relining process take?

The exact time required for the process is dependent on various elements like the location, the environment and the type of damage. However the average Pipe Relining task usually takes between 2 and 3 days depending on how many metres require lining..

In conclusion, if want to avoid invasive excavation work and save money as you restore your pipelines’ full function you should consider using our Perth Blocked Drains Plumber ‘s swift and efficient pipe relining solutions. Contact us!

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