Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Perth Blocked Drains Plumbing on 6 Feb 2026

When it comes to fixing damaged pipes, two popular solutions are pipe relining and pipe replacement. Both solutions aim to bring back the original function of your pipelines, but there are distinct differences must be aware of.

Key Takeaways

  • Relining pipelines is a cost-effective and swift process for restoring damaged pipelines.
  • The lining of CIPP is utilized in pipe relining.
  • Epoxy resin is used to line the inside portions of the pipe. It cures to creates a new inner lining inside the pipe.
  • 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 sections of land where pipes are located.
  • Pipe replacement may be necessary to repair pipes that are severely damaged.
  • A brand new pipeline that is installed by the replacement of a pipe has a long duration (75 to 100 years).
  • Replacement of pipes can be costly and laborious.
  • The decision between pipe relining or pipe replacement depends on the degree of damage caused.

In this post, we’ll look at pipe relining as opposed to. pipe replacement and find out which one suits your requirements more.

How do you define Pipe Relining?

Pipe relining, also known as Cured-In-Place pipe (CIPP) Lining is a cutting-edge repair method which offers a low-cost and fast solution for repairing damaged pipelines.

Here’s how it will work:

  1. A technician cleans the pipeline with high-pressure water jetting or mechanical cleaning.
  2. Then, they apply epoxy resin made from polyester or fiberglass liner inside the pipeline.
  3. The liner is cured by forming a new lining within the old pipeline, which is just as strong as a brand new one.

Pros of Pipe Relining

  • The process is time-efficient, taking between 2 and 3 hours to complete the whole process, as opposed to digging for days in traditional methods of replacing pipes.
  • Cost-effective Since there is no excavation or removal required in pipe relining, it can save almost half of the amount you have to pay for repairs that are traditional.
  • Durability – The new liner made by pipe relining could last for 50 years!

Pros and Cons of Pipe Relining

  • Not recommended for extremely damaged pipes - If there are significant damages such as cracks, collapses, or misaligned joints within your sewer line then pipe relining may not be possible.

What exactly is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. The sections could include the collapsed pipes as well as extremely corrosion-prone ones, due to negligence or aging.

The following steps comprise most traditional replacements for pipes:

  1. A team of excavation workers digs access to the degraded underground pipe.
  2. The old pipeline has been removed and dug out, creating a lot of debris that must be cleared away.
  3. Then, they construct another pipeline in place of the previous one.

Pros and Cons of Pipe Replacement

  • It is suitable for pipes with severe damage If you have to replace pipes that are experiencing significant damage or corrosion, pipe replacement is the ideal solution.
  • Long-lasting – The latest pipeline replaced with pipe is long-lasting (75 up to 100 years) which makes it a great solution for homeowners who want a permanent solution.

Pros and Cons of Pipe Replacement

  • It is expensive – Excavating work required to replace pipes can be costly and time-consuming.
  • Long-lasting – Pipe replacements can take weeks depending on the extent of work and the depth of excavations needed.

Which one should you select?

The decision to choose between relining or replacing your pipes mostly depends on the extent of damage caused. If your pipes have minor damages like cracks or leaks that are minor, relining would probably be an ideal option as it is less costly and faster than traditional pipe replacements.

But if there are severe damage such as breaks or collapses the best option is replacing the pipe with a traditional method, even though it might cost more and 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 and Answers

What is the process of relining pipes?

Pipe relining is a process which consists of creating a new pipe inside the existing damaged pipe. It is accomplished by inserting a liner that is flexible into the pipe that was damaged and placing it into place. After curing, the new pipe is free of joints or seams which improves its structural strength.

How does traditional pipe replacement differ from relining pipe?

Traditional replacement of pipes involves physically removing old pipes, before replacing them with new ones. The alternative, pipe relining does not require excavation. Instead, it’s completed by using technology that permits repair of pipelines without digging vast areas of land.

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

Pipe relining typically costs less than traditional methods for repair of pipelines because there are no costs associated to excavation and other techniques necessary for removing and replacing old pipes.

Can all kinds of pipes be lined?

Some types of pipes can be relined successfully. Your plumber must examine your situation to determine if it’s feasible to line your particular type of pipes. But, the majority of contemporary pipes are relined using this method.

How long will the process of relining pipes take?

The exact time required for the process depends on different variables like location, environment, and type of damage; however the typical Pipe Relining process typically takes about 2 days depending on how many meters need to be lined..

In conclusion, if want to avoid invasive excavation work and save cash as you restore your pipelines’ performance to their fullest, consider opting for our Perth Blocked Drains Plumbing ‘s rapid and effective pipeline relining services. Get in touch with us!

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