
January 23, 2025

Read Time
4
What is Pipe Relining?
What is Pipe Relining?
Pipe relining is a cutting-edge plumbing solution that repairs damaged or blocked pipes without the need for disruptive excavation.
Instead of replacing the pipe, a durable epoxy resin-covered tube is installed within the existing pipe, creating a new, smooth inner surface.
This cost-effective method is gaining popularity across Australia for its minimal disruption, eco-friendly approach, and long-lasting results. But what is pipe relining, and how does it work? This guide explains everything you need to know.
Understanding Pipe Relining
Pipe relining is a modern plumbing technique that creates a new, durable pipe within the old one.
It’s trenchless, meaning little to no digging is required. Using an inflatable tube coated with resin, plumbers can repair cracks, leaks, and blockages precisely.
This method is ideal for pipes damaged by invasive tree roots, corrosion, or age. It also works for pipes under driveways or buildings, where excavation is costly and disruptive.
The Pipe Relining Process: Step-by-Step Guide
1. Inspection
The process begins with a thorough inspection using CCTV or drain cameras.
- Plumbers assess the pipe’s condition, identify blockages, and determine suitability for relining.
- Common issues include cracks, internal gaps, and blockages caused by roots or debris.
Outcome:
A detailed understanding of the damage and a plan for effective repair.
2. Cleaning
Before relining, the pipe is cleaned using pipe-clearing technology, such as high-pressure water jets or mechanical tools. This step ensures a clean surface for the resin to adhere.
Outcome:
Debris, grease, and calcification are removed, leaving the pipe ready for relining.
3. Liner Insertion
A resin-coated liner is prepared and inserted into the pipe using specialised equipment like an inversion drum.
- The liner navigates bends and curves to cover the entire damaged area.
- Inflation presses the liner against the pipe walls, ensuring a precise fit.
Outcome:
The liner is positioned to create a new, smooth inner surface.
4. Curing
The resin is cured using hot water, steam, or UV light to harden the liner into a durable protective coating.
- This step strengthens the pipe, making it resistant to corrosion and root intrusion.
Outcome:
A robust new pipe interior with a lifespan of up to 50 years.
5. Final Inspection
A second drain camera inspection ensures the relining was successful and the pipe is fully functional.
- Any defects are addressed before the job is completed.
Outcome:
A reliable, long-lasting pipe repair with minimal disruption to your property.
Benefits of Pipe Relining
1. Minimal Disruption
- No need for driveway excavation or landscaping repairs.
- Ideal for properties with limited access to underground pipes.
2. Cost-Effective
- Avoids labour-intensive digging, reducing overall costs.
- Saves time, with most projects completed in a day.
3. Durable and Long-Lasting
- Resistant to corrosion, root intrusion, and wear.
- Relined pipes can last over 50 years with proper maintenance.
4. Improved Flow
- The smooth resin surface enhances water flow, preventing future blockages.
5. Eco-Friendly
- Reduces waste by avoiding excavation and pipe replacement.
Pipe Relining vs. Replacement
Pipe Relining
- Minimal disruption and faster turnaround.
- Works well for cracks, leaks, and moderate damage.
Pipe Replacement
- Necessary for pipes damaged beyond repair or collapsed entirely.
- Involves drainage excavation, which is costly and invasive.
For most residential and commercial needs, pipe relining is the preferred pipe repair method due to its efficiency and reduced mess factors.
Considerations for Pipe Relining
While pipe relining is effective, it’s not suitable for all situations.
Here’s what to consider:
- The extent of Damage:some text
- Pipes with severe structural issues or collapse may require replacement.
- Access Points:some text
- Plumbers may use existing inspection pits or create new ones for relining.
- Maintenance:some text
- Regular cleaning and inspections ensure the longevity of relined pipes.
Conclusion: Restore Your Pipes with Confidence
Pipe relining is a revolutionary plumbing solution that offers durability, convenience, and eco-friendliness.
If you’re facing plumbing issues and wondering what pipe relining is, this method could be the perfect fit for you.
To schedule an assessment or learn more about the pipe relining process, contact Sewer Surgeon today. Give us a call at 1300 734 677 to experience seamless, stress-free pipe repair for your home or business.
Frequently Asked Questions
1. How long does the pipe relining process take?
Most pipe relining jobs are completed within a day, depending on the pipe’s length and condition.
2. Is pipe relining suitable for all pipe materials?
Yes, pipe relining works for materials like PVC, clay, cast iron, and concrete. However, a professional inspection is necessary.
3. How durable is a relined pipe?
Relined pipes are incredibly durable, lasting 50 years or more with proper care.
4. What is the cost of pipe relining?
The cost varies based on pipe length, damage severity, and pipe relining cost per metre. It’s generally more affordable than traditional replacement.
5. Does pipe relining require excavation?
In most cases, pipe relining is trenchless, requiring little to no excavation and preserving your landscaping and property.

Andy Quinn
Founder
Andy Quinn is the founder of Sewer Surgeon, a family-owned plumbing business serving Sydney with over 63 years of combined industry expertise. Andy and his team specialize in delivering reliable solutions for everything from blocked drains to emergency plumbing, ensuring quality service and customer satisfaction.