Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Melbourne Blocked Drains Plumbers on 7 Oct 2025

When it comes to fixing damaged pipes, two popular solutions are pipe relining and replacement of pipes. Both methods aim to restore the function of your pipes, however there are some distinct differences must be aware of.

Key Takeaways

  • Relining pipelines is a cost-effective and speedy method to repair damaged pipelines.
  • The lining of CIPP is utilized in pipe relining.
  • Epoxy resin is used to line the inner portions of the pipe. It sets to create a brand new inner lining within the pipeline.
  • Pipe relining is time-efficient, cost-effective, and will last up to 50 years.
  • Traditional pipe replacement involves digging up sections of land in which pipes are situated.
  • Replacement of pipes may be required for severely damaged pipes.
  • A brand-new pipeline installed with pipe replacement has a lengthy time span (75 -100 years).
  • The cost of replacing pipes is high and lengthy.
  • The decision between pipe relining or pipe replacement depends on the degree of damage that has been caused.

In this article, we’ll discuss pipe relining and. replacing pipes and figure out which one suits your requirements more.

What is Pipe Relining?

Pipe relining, also known as Cured-In-Place pipe (CIPP) Lining is a state-of-the-art repair process that provides a cost-effective, quick solution to repair damaged pipelines.

Here’s how it works:

  1. Technicians clean the pipeline using high-pressure water jetting or mechanical cleaning.
  2. Then, they place epoxy resin made from fiberglass or polyester liner to the pipeline.
  3. The liner cures, creating a new inner liner within the old pipeline that’s as long-lasting as the new one.

Benefits Pipe Relining

  • Time-efficient – It typically takes just 2 to 3 hours of time to accomplish the entire procedure, compared to excavating for many days using traditional pipe replacement techniques.
  • Cost-effective because no excavation or removal is necessary for pipe relining It can save you nearly half of what you would have to pay for repairs that are traditional.
  • Durability – The new lining formed by pipe relining can last for up to 50 years!

The cons of Pipe Relining

  • Not suitable for severely damaged pipes. If there are serious damages such as cracks, collapses or joints that are misaligned in 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. These sections may include the collapsed pipes as well as extremely corrosion-prone ones, due to lack of maintenance or age.

The steps below are the most traditional replacements for pipes:

  1. An excavation crew digs access to the decayed underground pipe.
  2. The pipeline was ripped off and dredged out, producing a lot debris that requires disposing of.
  3. They then install the new pipeline on top of the previous one.

Pros of Pipe Replacement

  • Ideal for pipes that have been severely damaged In the event that you need to replace pipes that are experiencing severe corrosion or damage, pipe replacement is the ideal solution.
  • Longer life span – The new pipeline installed through pipe replacement has a lengthy lifespan (75 bis 100 years) which makes it a great solution for homeowners who want an option that is long-lasting.

Pros of Pipe Replacement

  • Costly – Excavation work requred to replace pipes can be costly and time-consuming.
  • The process is time-consuming. Traditional pipe replacements can take a few weeks based on the nature of the project and depth of excavations required.

Which one is best for you?

The decision of replacement or relining your pipes mostly depends on the amount of damage caused. If your pipes are suffering from minor damage, such as cracks or leaks that are minor, it is likely that relining is the best option, as it’s less costly and is also faster than traditional pipe replacements.

However, if you have severe damage, such as collapses or broken pipes it is recommended to consider an alternative to replacing your pipe, although it could be more costly 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

Frequently Asked Question

What is pipe relining?

Pipe relining is a procedure that creates a brand new pipe within the existing damaged pipe. It is accomplished by inserting a flexible liner inside the old pipe and then making it a permanent fixture. Once it is cured, the new pipe is completely free of joints and seams which improves its structural integrity.

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

Traditional pipe replacement involves physically cutting away the old pipe and then replacing them with brand new ones. Contrary to this, pipe relining does not require excavation. Instead, it’s completed with the help of technology, which allows repair of pipelines without digging vast areas of land.

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

Relining pipelines typically costs less than traditional methods for repair of pipelines because there are no costs associated to excavation or other methods required for the removal and replacement of old pipes.

Can all kinds of pipes be reflined?

Certain types of pipes are relined effectively. In the end, your plumber will need to examine your pipe to determine if it is feasible to line your particular type of pipes. But, the majority of contemporary pipes are lined with this method.

How long does the process of relining pipes take?

The exact duration of the process is dependent on various aspects like location, climate, and type of damage; however the average pipe Relining job usually takes 2-3 days, depending on the number of metres require lining..

If you would like to steer clear of digging work and save your money while restoring damaged pipelines’ function to its maximum Consider utilizing our Melbourne Blocked Drains Plumbers ‘s swift and efficient pipe relining services. Get in touch with us!

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