Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Perth Blocked Drains Plumbers on 20 Aug 2026

In the case of fixing damaged pipes, two common techniques are pipe relining as well as pipe replacement. Both of these methods are designed to restore the functionality of your pipes, however they have marked differences that you need to know.

Key Takeaways

  • Pipe relining is a cost-effective and speedy method to repair damaged pipelines.
  • The lining of CIPP is utilized in the relining of pipes.
  • Epoxy resin is used to line the inner areas of the pipe. This cures to create a new inner lining for the pipe.
  • Pipe relining is time-efficient, cost-effective, and can last up to 50 years.
  • The traditional method of replacing pipes is digging up portions of property in which pipes are located.
  • A replacement pipe may be needed for severely damaged pipes.
  • A new pipeline installed through pipe replacement has a lengthy duration (75 or 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. pipe replacement, and find the one that best suits your needs more.

What is Pipe Relining?

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

Here’s how it is done:

  1. A technician cleans the pipeline with high-pressure jetting or mechanical cleaning.
  2. Then, they place epoxy resin made from fiberglass or polyester liner in the existing pipeline.
  3. The liner is cured, creating a new inner lining within the old pipeline that’s just as robust as a new one.

Benefits Pipe Relining

  • Time-efficient – It usually takes between 2 and three hours for the entire procedure, compared to excavating for several days with traditional pipe replacement techniques.
  • Cost-effective because there is no excavation or removal needed in the pipe relining process this method can save nearly half of what you would spend on traditional repairs.
  • Durability – The new liner formed by pipe relining can last for up to 50 years!

Cons of Pipe Relining

  • Not suitable for the most damaged pipes - If there are serious damages such as cracks, collapses, or joints that are not aligned correctly 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 areas may contain broken pipes, or very damaged ones due to negligence or aging.

The following steps comprise most traditional replacements for pipes:

  1. An excavation team digs up access to the damaged underground pipe.
  2. The old pipeline is detached and dug out producing much debris that requires disposing of.
  3. Then, they construct an entirely new pipeline instead of the old one.

Benefits of Pipe Replacement

  • Suitable for severely damaged pipes Ideal for severely damaged pipes – If you must replace pipes that are experiencing significant corrosion or damage, pipe replacement is the most effective option.
  • Long life – The brand new pipeline replaced with pipe has a long lifespan (75 bis 100 years) which makes it a great choice for homeowners in search of the best solution for their home.

Cons of Pipe Replacement

  • The work of excavation required for pipe replacement can be costly and time-consuming.
  • It is time-consuming. Pipe replacements can take weeks depending on the size of the work and depth of excavations required.

Which one should you choose?

The decision of relining or replacing your pipes mostly is contingent on the extent of damage caused. If your pipes suffer minor damage, such as cracks or minor leaks, it is likely that relining is the best option, as it’s less expensive and is also faster than replacement of pipes using traditional methods.

But if there are severe damages like collapses or breaks it is recommended to 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

Frequently Asked Question

What is the process of relining pipes?

Relining a pipe is a procedure which consists of creating a new pipe inside an existing damaged pipe. It is accomplished by inserting a flexible liner in the old pipe and then the process of curing it. Once it is cured, the new pipe has no joints or seams that improve its structural integrity.

How does the traditional replacement of pipes differ from pipe relining?

Traditional pipe replacement involves digging up and physically cutting away the old pipe, then replacing them with new ones. The alternative, pipe relining does not require excavation. Instead it’s accomplished by using technology that permits pipe repair without digging up large areas of land.

Which method is cheaper - liner relining or conventional pipe replacement?

Relining pipelines typically costs less than the traditional methods of pipeline repair as there is no cost related to excavation or other methods that are required to remove and replace old pipes.

Can all types of pipes be relined?

There are a few types of pipes that can be successfully relined. Your plumber should examine your particular situation to determine whether it’s feasible to line the particular kind of pipes. But, the majority of modern pipes can be lined with this technique.

How long will the process of relining pipes take?

The precise time needed for the process is dependent on various aspects like location, environment, and type of damage. However the average pipe Relining job usually takes 2-3 days depending on how many meters need to be lined..

If you are looking to stay clear of invasive excavation work and save money in the process of restoring your damaged pipelines’ performance to their fullest Consider utilizing our Perth Blocked Drains Plumbers ‘s quick and efficient pipe relining services. Contact us today!

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