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The gurgle of a blocked drain. Yet another morning routine was disrupted. You plunge, snake, and pour chemicals, but the blockage persists. Or perhaps a mysterious leak plagues you, leaving you worried about hidden damage and a costly water bill. Traditional solutions for these plumbing nightmares often involve extensive digging – a messy disruption to your property. But there’s a better way: pipe relining.

Pipe relining is a revolutionary pipe repair method that tackles damaged pipes – blocked drains, broken sewer pipes, and leaking kitchen pipes – without needing to rip up your yard or floors. Unlike traditional pipe replacement, which can be expensive and disruptive, pipe relining offers a faster, more cost-effective solution. So, how exactly does this work? Let’s explore the fascinating world of pipe relining and understand the process that can give your entire plumbing system a new lease on life.

What is Pipe Relining?

Pipe relining, also known as pipe lining, is a trenchless pipe repair method used to fix damaged underground pipes, including sewer pipes and broken kitchen pipes. Unlike traditional pipe replacement, which involves extensive excavation, high pipe relining costs, and major disruption to your normal routine, pipe relining technology offers a quicker and more cost-effective solution.

Pipe Relining Plumber

Traditional Pipe Repair vs. Pipe Relining

Traditionally, repairing damaged pipes meant digging up the surrounding area to access and replace the broken section. This traditional method comes with several drawbacks:

  • Extensive Excavation: Large trenches need to be dug, causing significant disruption to your property and landscaping.
  • High Costs: The labour and materials involved in traditional pipe replacement can be expensive.
  • Major Disruption: Your normal routine can be significantly disrupted for the duration of the work.

The Pipe Relining Process

During the pipe relining process, a pipe relining specialist will use a CCTV camera to inspect the damaged pipe and identify the problem area. Depending on the type of damage, whether it’s blocked drains, broken pipes, or tree root intrusion, the specialist will choose the most suitable pipe relining service.

There are various pipe relining materials available, such as epoxy resin and cured-in-place liners (CIPP). The chosen lining material is inserted into the existing pipe through access points like inspection pits. In the case of CIPP lining, a two-part epoxy resin is used to saturate a felt tube, which is then inserted into the damaged pipe. Once inflated with very high pressure, the resin cures and forms a smooth, new pipe inside the original pipe.

Benefits of Pipe Relining

Pipe relining offers several advantages over traditional methods:

  • Trenchless Repair: Minimal digging is required, minimising mess and disruption to your property.
  • Cost-Effective: Pipe relining costs are generally lower than traditional pipe replacement.
  • Faster Turnaround: The relining process can be completed in a shorter timeframe compared to traditional methods.
  • Smoother Pipes: Relined pipes have a smoother surface, reducing the chance of future blockages.
  • Extended Lifespan: Pipe relining can significantly extend the lifespan of your plumbing system.

If you suspect a plumbing issue like blocked toilet drains or broken pipes, consider contacting a professional plumber specialising in pipe relining services. They can assess the situation using CCTV cameras and recommend the most suitable relining solution for your damaged pipes.

How Does Pipe Relining Work?

Traditional methods of repairing damaged pipes often involve extensive digging, disrupting your property and daily routine. Thankfully, pipe relining technology offers a more efficient and less disruptive solution. Here’s a step-by-step look at how pipe relining works in more detail:


Before any pipe relining work begins, pipe relining specialists use a CCTV camera to assess the extent of the damage. This camera is fed into the pipes, providing a clear visual of cracks, blockages, or any other issues affecting the pipe’s functionality. The footage helps determine if pipe relining is the most suitable repair method and allows for precise planning of the relining process.


Thorough cleaning is crucial for successful pipe relining. Debris, grease, and other build-up can prevent the new lining from properly adhering to the old pipe. Pipe relining specialists use high-pressure water jets or mechanical cleaning tools to remove any obstructions and ensure a clean surface for the pipe liner.

Liner Selection

The appropriate pipe liner material and size are chosen based on the specific type and severity of the pipe damage identified during the inspection. Common pipe lining materials include epoxy resin and cured-in-place pipe (CIPP). The liner size needs to be slightly larger than the existing pipe diameter to ensure a snug fit and create a new, structurally sound pipe within the old one.

Liner Installation

The pipe liner installation process varies depending on the chosen material. For epoxy resin lining, a resin-soaked liner is inserted into the pipe and inflated with air or steam, pressing it firmly against the pipe walls and creating a new lining. In the case of CIPP lining, a felt tube saturated with epoxy resin is inserted into the pipe using a special balloon. This balloon expands, forcing the liner against the pipe walls and curing the resin to form a new pipe.


Once the liner is in place, it needs to be hardened or cured to form a strong and durable new pipe. The curing time can vary depending on the type of resin used and the pipe diameter. Pipe relining specialists will ensure the liner is completely cured before putting the pipes back into service.

Minimal Disruption

One of the significant advantages of pipe relining is the minimal disruption it causes compared to traditional pipe repairs. Since digging is not required, there’s no need to excavate floors, walls, or gardens. This translates to less mess, less noise, and a quicker turnaround time for getting your plumbing system back up and running smoothly.

Applications of Pipe Relining

Pipe relining offers effective solutions for common plumbing issues, addressing problems in existing pipes without extensive excavation. This innovative technique is particularly useful for repairing pipes affected by leaks, cracks, blockages, and root intrusion.

Trenchless Pipe Relining Process

For leaky pipes, sewer pipe relining creates a seamless, waterproof barrier within the damaged pipe, preventing further water loss. In cases of cracked pipes, the relining process effectively seals the breaks, restoring the pipe’s structural integrity. This method is equally effective for smaller-diameter pipes and larger sewer lines.

When dealing with blocked drains, drain relining can smooth out internal pipe surfaces, reducing the likelihood of future blockages and improving flow. Root intrusion, a common issue damaging pipe materials, can be effectively managed through relining, as the new lining prevents tree roots from re-entering the pipe.

Before repairing pipes, plumbers often use a drain camera to assess the damage. This allows for the precise application of relining techniques. Once complete, a final inspection ensures the effectiveness of the repair.

Signs of Damaged Pipes That Might Need Relining

If you’re experiencing any of these issues, your pipes could be damaged and might benefit from relining:

  • Slow drains: Draining water takes much longer than usual.
  • Frequent blockages: Clogged drains become a recurring problem.
  • Unexplained water damage: You notice water stains or mould growth without an obvious source.
  • Foul odours: Bad smells emanating from drains could indicate pipe problems.

Don’t Dig It Out, Reline It!

Pipe relining offers a trenchless solution to damaged pipes. Forget messy excavation and disruption! This innovative technique repairs pipes from the inside by inserting a flexible lining saturated with resin. Once inflated and cured, the resin hardens, forming a strong, new pipe within the old one. Pipe relining is faster, more affordable, and less disruptive than traditional pipe replacement.

Woolf Plumbing is a trusted provider of pipe relining services across Australia. Our experienced plumbers use state-of-the-art equipment to diagnose pipe problems and deliver long-lasting repairs. We understand the importance of a functional plumbing system and strive to minimise disruption to your home or business. Speak with our Woolf Plumbing today for a free quote and expert advice on whether pipe relining is the right solution for you. Let us help you get your pipes back in top shape!

Ashley Woolf

Ashley Woolf

Find them on their website: Woolf Plumbing & Gas, Facebook and LinkedIn.

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