Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Sydney Blocked Drains Plumbing on 10 Dec 2025

In the case of fixing damaged pipes, two common methods are pipe relining and replacement of pipes. Both solutions aim to restore the full function of your pipelines, but there are distinct differences you need to know.

Key Takeaways

  • Pipe relining is a cost-effective and fast method for repairing damaged pipelines.
  • Linings made of CIPP are used for the relining of pipes.
  • Epoxy resin is used to line the internal parts of the pipe. The resin cures to creates a new inner lining inside the pipeline.
  • Pipe relining is time-efficient, cost-effective, and can last for up to 50 years.
  • Traditional pipe replacement involves excavation of areas on 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 new pipe installed via the replacement of a pipe has a long time span (75 to 100 years).
  • The cost of replacing pipes is high and long-lasting.
  • The choice between pipe relining or pipe replacement is based on the extent of damage.

In this article, we’ll talk about pipe relining and. pipe replacement, and find out which option will meet your needs more.

Is Pipe Relining a thing?

Pipe relining or Cured In-Place Pipe (CIPP) lining is a cutting-edge repair method that provides a cost-effective 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 place epoxy resin made from fiberglass or polyester inside the existing pipeline.
  3. The liner cures to form a brand new inner liner within the old pipeline, which is just as long-lasting as the new one.

Pros of Pipe Relining

  • The process is time-efficient, taking only 2 to 3 hours to complete the entire process, as opposed to digging for many days using traditional methods of replacing pipes.
  • Cost-effective - Because no excavation or removal is required in pipe relining this method can save nearly half of the price you’d have to pay for repairs that are traditional.
  • Durability – The new liner made by pipe relining could last for up to 50 years!

The cons of Pipe Relining

  • Not suitable for the most damaged pipes - If there are major damages like collapses, cracks, or misaligned joints within your sewer line then pipe relining may 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 corrosion-prone ones, due to negligence or aging.

The following steps make up the majority of traditional pipe replacements:

  1. An excavation team digs access to the deteriorated underground pipe.
  2. The old pipeline is detached and dredged out, producing a lot debris that needs to be disposed of.
  3. Then, they put in a new pipeline in place of the one they had previously installed.

Pros and Cons of Pipe Replacement

  • Ideal for pipes that have been severely damaged Ideal for severely damaged pipes – If you must replace pipes that are experiencing severe corrosion or damage, pipe replacement is the best solution.
  • Long life – The brand new pipeline, which is replaced by pipe has a long life (75 bis 100 years) making it an ideal alternative for homeowners seeking a permanent solution.

Pros of Pipe Replacement

  • Extraction work that is costly to replace pipes can be time-consuming and expensive.
  • It is time-consuming. Pipe replacements could take several 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 is largely based on the level of damage caused. If your pipes suffer from minor damages like cracks or leaks of a minor size, the relining process is probably an ideal option as it is less costly and is also faster than conventional replacements.

However, if you have severe damage such as breaks or collapses and breaks, you must consider traditional pipe replacement although it will cost more and will 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 a pipe is a process which consists of creating a new pipe within the existing damaged pipe. This is done by inserting a flexible liner in the pipe that was damaged and placing it into place. Once cured, the new pipe has no joints or seams, which enhances the structural integrity of the pipe.

How does traditional pipe replacement differ from relining pipe?

Traditional replacement of pipes involves digging up and physically taking away old pipes after which they are replaced with new ones. Contrary to this, pipe relining isn’t a requirement for excavation. Instead it’s carried out with the help of technology, which allows repairs to pipelines without digging vast areas of land.

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

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

Can all types of pipes be changed?

There are a few types of pipes that are relined in a successful manner. Your plumber will have to inspect your situation to determine if it’s possible to line your specific kind of pipes. However, most current pipes could be relined by this technique.

How long will the process of relining pipes take?

The precise 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 meters require lining..

If you are looking to stay clear of invasive excavation work and save your money as you restore your pipelines’ full function take a look at our Sydney Blocked Drains Plumbing ‘s fast and effective pipeline relining services. Contact us!

Additional Information

Our 5 Star Service Promise to You

Sydney Drain Plumbing Services

Are you experiencing a clogged toilet, blocked shower drain, overflowing drains or an issue with your kitchen sink? We can help you sort out your drain blockage problem quickly and provide the following services:

  • CCTV Drain Inspections
  • Drain Clearing & Drain Cleanin
  • Drain Repairs
  • Pipe Relining
  • Blocked Stormwater Drains
  • Blocked Sewer Drains & Blocked Pipes
  • Blocked Sinks & Blocked Toilets
  • Clogged or Blocked Shower Drain

Clearing blocked drains can be difficult and it’s best to get a professional plumbing service involved to tackle it for you, To get your blocked drain in Sydney cleared today, contact Sydney Blocked Drains Plumbing now and speak to one of our friendly team members.

8 Reasons To Hire Sydney Blocked Drains Plumbing

  • 24 Hours A Day, 7 Days A Week
  • Price Up-Front, No Hidden Fees
  • Prices You Can Trust
  • Quality Workmanship Guaranteed
  • Great Reviews & Reputation
  • We’re Personable & Friendly
  • Experienced & Licenced Team
  • Get a Quote With No Obligation

We Provide 24/7 Emergency Plumbing

No one ever expects to experience a plumbing emergency, but when it does happen, you need a reliable plumbing service that can help you resolve the issue as quickly as possible.

At Sydney Blocked Drains Plumbing, we are always here for our customers, day or night, weekends or holidays. We understand that plumbing emergencies can happen at any time, and we are always prepared to help.

If you are experiencing a plumbing emergency, please do not hesitate to call us. We will dispatch one of our experienced plumbers to your home or business as soon as possible.

We will work diligently to resolve the issue and get your life back to normal as quickly as possible, contact us today.

Blocked Drains

Blocked Drains

Drain Inspection

Drain Inspection

Drain Cleaning

Drain Cleaning

Drain Repairs

Drain Repairs

About Us &

What We Do

When it comes to plumbing, you want to make sure you’re working with a qualified professional. At our company, we are licensed and insured professionals who are dedicated to providing quality plumbing services.

We’re here to help with all of your plumbing needs, such as blocked drains, CCTV drain inspections, drain repairs and pipe relining.

We understand that plumbing problems can be disruptive and expensive. That’s why we offer 24×7 emergency service, so you can get the help you need when you need it most.

We also have a 100% satisfaction guarantee on all of our work, so you can be confident that you’re making the best decision for your home.

Identify tree roots in your pipes with our cctv inspections and nabish them from your drains with our pip repairs and pipe relining.

Blocked Drain, CCTV Inspections & Pipe Relining
Make an Enquiry

Request a Quote

Fill out the form below to get in touch or call us today on
1300 915 597