Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Adelaide Blocked Drains Plumber on 28 Dec 2025

When it comes to fixing damaged pipes, two common solutions are pipe relining and replacement of pipes. Both methods aim to bring back the original function of your pipelines, but they differ in a way that you should be aware of.

Key Takeaways

  • Pipe relining is a cost-effective and swift process for restoring damaged pipelines.
  • The lining CIPP is employed in pipe relining.
  • Epoxy resin is used to line the inside parts of the pipe which is cured to form a new inner lining within the pipeline.
  • Relining pipes is efficient, cost-effective and lasts up to 50 years.
  • The traditional method of replacing pipes is digging up areas of the property in which pipes are situated.
  • The replacement of pipes is often necessary in the case of pipes that have been severely damaged.
  • A brand-new pipeline installed with pipeline replacement has a longer lifespan (75 -100 years).
  • Replacement of pipes is expensive and time-consuming.
  • The decision between pipe relining or pipe replacement is based on the extent of damage caused.

In this article, we’ll go over pipe relining as opposed to. pipe replacement. Find out which option will meet your needs more.

The term "pipe relining" is used to describe the process of repairing pipes.

Relining pipes or Cured-In Place Pipe (CIPP) Lining is a state of the art repair procedure that offers a cost-effective and quick solution to repair damaged pipelines.

Here’s how it will work:

  1. Technicians clean the pipeline using high-pressure water jetting or mechanical cleaning.
  2. Then, they put epoxy resin made of polyester or fiberglass liner inside the existing pipeline.
  3. The liner cures to form a brand new inner lining within the pipeline that’s as robust as a new one.

Pros of Pipe Relining

  • The process is time-efficient, taking only 2 to three hours for the whole process compared with excavating for several days with traditional pipe replacement techniques.
  • Cost-effective - Because there is no excavation or removal necessary for pipe relining This can help you save more than half of the price you’d have to pay for repairs that are traditional.
  • Durability – The new lining made by pipe relining could last for up to 50 years!

Con’s 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 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. The sections could include broken pipes, or very damaged ones due to lack of maintenance or age.

The following steps comprise most traditional pipe replacements:

  1. An excavation crew digs access to the degraded underground pipe.
  2. The pipeline that was previously in use is detachment and dredged out, producing a lot debris which needs to be removed.
  3. Then, they construct the new pipeline on top of the old one.

Benefits of Pipe Replacement

  • Ideal for pipes that have been severely damaged Ideal for severely damaged pipes – If you must replace pipes that have significant corrosion or damage, pipe replacement is the most effective option.
  • Long-lasting – The latest pipeline that is installed by pipe replacement has a long life (75 or 100 years) making it an ideal alternative for homeowners seeking an ongoing solution.

Pros and Cons of Pipe Replacement

  • Extraction work that is costly for pipe replacement could be time-consuming and expensive.
  • It is time-consuming. Pipe replacements may take weeks depending on the nature of the project and the depth of excavations that are required.

Which one is best for you?

The decision of the option of relining or replacing your pipes is largely based on the amount of damage caused. If your pipes suffer small damages, like cracks or leaks of a minor size, the relining process is probably the better option since it’s less expensive and faster than replacement of pipes using traditional methods.

If there are major damages like collapses or breaks and breaks, you must consider replacing the pipe with a traditional method, even 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 Question

What is pipe relining?

Pipe relining is a process that creates a brand new pipe inside the existing damaged pipe. It is accomplished by inserting a flexible liner into the old pipe and making it a permanent fixture. Once cured, the new pipe does not have joints or seams that improve the structural integrity of the pipe.

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

Traditional pipe replacement involves physically dismantling old pipes after which they are replaced with new ones. In contrast, pipe relining doesn’t require excavation. Instead, it’s completed using technology that allows for repair of pipelines without digging large portions of land.

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

Pipe relining typically costs less than traditional methods of pipeline repair as there are no costs associated to excavation, or other methods needed for removing and replacing old pipes.

Can all kinds of pipes be reflined?

There are a few types of pipes that are relined effectively. Ultimately, your plumber will need to examine the situation to determine if it’s feasible to line your particular type of pipes. However, the majority of new pipes may be repaired using this method.

How long will the process of relining pipes last?

The exact length of time needed for the procedure varies based on variables like location, environmental conditions and the type of damage. However the typical pipe Relining job typically takes around 2 days, depending on how many metres need to be lined..

If you are looking to stay clear of invasive excavation works and save money while restoring damaged pipelines’ function to its maximum take a look at our Adelaide Blocked Drains Plumber ‘s rapid and effective pipe relining services. Get in touch with us!

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