Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Local Sydney Blocked Drains on 15 Feb 2026

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

Key Takeaways

  • Relining pipes is an affordable and speedy method to repair damaged pipelines.
  • The lining CIPP is employed in pipe relining.
  • Epoxy resin is used to line the internal portions of the pipe. It cures to create a new inner lining within the pipeline.
  • Pipe relining is time-efficient, cost-effective and lasts for up to 50 years.
  • The traditional method of replacing pipes is digging up portions of property where pipes are located.
  • A replacement pipe may be needed to repair pipes that are severely damaged.
  • A new pipe installed via pipe replacement has a long lifespan (75 -100 years).
  • Pipe replacement is costly and long-lasting.
  • The decision between pipe relining or pipe replacement depends on the level of damage caused.

In this article, we’ll discuss pipe relining in comparison to. replacing pipes and figure the one that best suits 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 cutting-edge repair method which offers a low-cost and swift solution for restoring damaged pipelines.

Here’s how it will work:

  1. A technician cleans the pipeline with high-pressure water jetting or mechanical cleaning.
  2. They then apply epoxy resin made of fiberglass or polyester inside the pipeline.
  3. The liner gets cured, creating a new inner liner within the old pipeline that’s as long-lasting as the new one.

The advantages of Pipe Relining

  • Time-efficient – It usually takes between 2 and 3 hours of time to accomplish the entire procedure, compared to excavating for many days using traditional pipe replacement techniques.
  • Cost-effective Since there is no excavation or removal necessary in pipe relining work It can save you nearly 50% of the cost you’d be paying for conventional repairs.
  • Durability – The new liner created through pipe relining can last up to 50 years!

Pros and 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. These areas could contain broken pipes, or very damaged ones caused by lack of maintenance or age.

The following steps are typical of traditional replacements for pipes:

  1. An excavation team digs up access to the degraded underground pipe.
  2. The pipeline that was previously in use is detachment and dug out, creating a lot of debris that needs to be disposed of.
  3. Then, they put in a new pipeline in place of the previous one.

Benefits of Pipe Replacement

  • It is suitable for pipes with severe damage Ideal for severely damaged pipes – If you must replace pipes that are experiencing significant corrosion or damage, pipe replacement is the best option.
  • Long lifespan – The new pipeline replaced with pipe has a lengthy lifespan (75 to 100 years) which makes it a great option for homeowners looking for a permanent solution.

Pros and Cons of Pipe Replacement

  • The work of excavation required for pipe replacement can be long and costly.
  • The process is time-consuming. Traditional pipe replacements can take a few weeks based on the scope of work and the extent of excavation required.

Which one should you select?

The decision to choose between replacement or relining your pipes mostly depends on the degree of damage caused. If your pipes suffer minor damage, such as cracks or leaks that are minor, relining would probably be an ideal option as it’s less expensive and also quicker than conventional replacements.

If there are major damage such as breaks or collapses 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 pipe relining?

Pipe relining is a process which consists of creating a new pipe within the existing damaged pipe. This is done by inserting a flexible liner inside the old pipe and then placing it into place. After it has been cured, the newly formed pipe is free of joints or seams, which increases its structural strength.

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

Traditional pipe replacement involves excavating and physically removing old pipes before replacing them with new ones. In contrast, pipe relining doesn’t require excavation. Instead it’s accomplished with the help of technology, which allows repairs to pipelines without digging large areas of land.

Which method is cheaper - the pipe relining method or traditional pipe replacement?

Relining pipelines typically costs less than traditional methods for pipe repair because there are no expenses related to excavation, or other methods needed for removing and replacing old pipes.

Can all types of pipes be reflined?

Certain types of pipes can be successfully relined. Your plumber must examine the situation to determine if it’s possible to line your specific type of pipes. But, the majority of modern pipes can be relined with this technique.

How long does the process of relining pipes last?

The exact time required for the process is dependent on various factors such as location, climate and the kind of damage. However the typical Pipe Relining job typically takes around 2 days based on the amount of metres require lining..

In conclusion, if you want to avoid invasive excavation work and save cash as you restore your pipelines’ full function, consider opting for our Local Sydney Blocked Drains ‘s rapid and effective pipeline relining service. 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 Local Sydney Blocked Drains now and speak to one of our friendly team members.

8 Reasons To Hire Local Sydney Blocked Drains

  • 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 Local Sydney Blocked Drains, 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
0488 863 348