Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Adelaide Blocked Drains Plumbing on 30 Dec 2025

In the case of fixing damaged pipes, two popular solutions are pipe relining and pipe replacement. Both approaches aim to restore the functionality of your pipes, however there are distinct differences are important to understand.

Key Takeaways

  • Pipe relining is a cost-effective and fast method for repairing damaged pipelines.
  • The lining of CIPP is utilized in pipe relining.
  • Epoxy resin is used to line the inside portions of the pipe. It sets to create a brand new inner lining for the pipeline.
  • Relining pipe is time-efficient and cost-effective, and can last for up to 50 years.
  • Traditional pipe replacement involves digging up areas of the property where pipes are located.
  • Pipe replacement may be necessary for pipes that are badly damaged.
  • A brand new pipeline that is installed by pipe replacement has a long lifespan (75 up to 100 years).
  • Replacement of pipes is expensive and time-consuming.
  • The choice between pipe relining or pipe replacement depends on the degree of damage caused.

In this post, we’ll look at pipe relining and. pipe replacement. Find out which one suits your needs better.

How do you define Pipe Relining?

Pipe relining or Cured-In-Place Pipe (CIPP) Lining is a cutting-edge repair method that provides a cost-effective, rapid solution for the repair of 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 put epoxy resin made of fiberglass or polyester liner in the pipeline.
  3. The liner gets cured to form a brand new inner liner within the old pipeline that’s as strong as a brand new one.

The advantages of Pipe Relining

  • Time-efficient: It generally takes between 2 and 3 hours to complete the whole process compared with excavating for many days using traditional pipe replacement methods.
  • Cost-effective since no excavation or removal is necessary in pipe relining work this method can save nearly half of what you would have to pay for repairs that are traditional.
  • Durability – The lining formed by pipe relining can last for up to 50 years!

Cons of Pipe Relining

  • Not suitable for severely damaged pipes - If there are major damages such as cracks, collapses, or joints that are not aligned correctly in your sewer line then pipe relining could not be possible.

What is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. The sections could include damaged pipes, or highly corroded ones either from age or neglect.

The following steps make up the majority of traditional replacements for pipes:

  1. An excavation team digs up access to the damaged underground pipe.
  2. The pipeline was ripped off and dug out, creating a lot of debris that needs to be disposed of.
  3. Then, they construct the new pipeline on top of the old one.

Pros and Cons of Pipe Replacement

  • It is suitable for pipes with severe damage If you have to replace pipes with severe corrosion or damage, pipe replacement is the ideal solution.
  • Long life – The brand new pipeline, which is replaced by pipe is long-lasting (75 to 100 years) which makes it a great option for homeowners looking for an option that is long-lasting.

Pros of Pipe Replacement

  • It is expensive – Excavating work required for the replacement of pipes is time-consuming and expensive.
  • Time-consuming – Traditional pipe replacements can take a few weeks based on the extent of work and depth of excavations required.

Which option should you pick?

The decision to choose between the option of relining or replacing your pipes is largely based on the degree 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 as well as quicker than replacement of pipes using traditional methods.

If there are major damage such as breaks or collapses it is recommended to consider conventional pipe replacement, though it may be more expensive 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 Questions

What is the process of relining pipes?

Relining of pipes is a procedure that creates a brand new pipe within the existing damaged pipe. It is accomplished by inserting a flexible liner into the old pipe and placing it into place. After curing, the new pipe does not have joints or seams, which increases its structural strength.

How does traditional pipe replacement differ from relining pipe?

Traditional pipe replacement involves excavating and physically removing old pipes, before replacing them with new ones. The alternative, pipe relining isn’t a requirement for excavation. Instead it’s carried out using technology that allows for repair of pipelines without digging huge areas of land.

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

Relining pipes typically cost less than traditional methods of pipeline repair as there is no cost related to excavation or other methods needed for removing and replacing old pipes.

All kinds of pipes can be relined?

Not all types of pipes are relined in a successful manner. Ultimately, your plumber will need to examine the situation to determine if it’s feasible to line the particular kind of pipes. But, the majority of contemporary pipes are relined by this method.

How long does the process of relining pipes take?

The exact time required for the procedure is contingent upon various aspects like location, climate 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 the end, if you wish to avoid digging works and save money while restoring your damaged pipelines’ full function, consider opting for our Adelaide Blocked Drains Plumbing ‘s fast and effective pipe relining solutions. Get in touch with us!

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