Is Pipe Relining Worth It?

Pipe relining is worth it for long-term savings and minimal disruption. It extends pipe life by up to 50 years, avoids excavation, and prevents future leaks. Although upfront costs range from $80–$250 per foot, it is often cheaper than full pipe replacement over time due to lower labour and restoration expenses.

Pipe relining is a trenchless technology that creates a new pipe within an existing damaged pipe without extensive excavation. This innovative method, which has been available in Australia for over three decades, involves inserting a special resin-coated liner into the damaged pipe, which then hardens to form a new, durable pipe interior.

The pipe relining process follows a systematic approach that begins with a thorough assessment of the damaged pipe. First, our plumbers use drain cameras to inspect the pipe and identify the exact nature and location of the damage. After clearing any blockages, the pipe is thoroughly cleaned to ensure proper adhesion of the relining material. A special resin is then distributed throughout a relining case, which is inserted into the damaged pipe using an inversion drum. This equipment both positions the liner and inverts the material to enable proper molding to the pipe’s interior. Once the resin cures, forming a protective coating along the pipe, any connected pipes and junctions are cleared, and a final inspection confirms the successful repair.

This “no-dig” solution has revolutionised pipe repair in Australia, providing an alternative to disruptive traditional methods that often involve extensive excavation and property damage.

In the Australian market, particularly in Sydney, pipe relining costs typically range between $450-$1000 per metre, with the average residential project costing between $2500 and $3000. Some providers advertise starting prices of $300-$500 per metre, though established companies warn these lower initial quotes may come with additional costs later in the process.

Several factors affect the final price of pipe relining:

1. Size and length of pipes: Larger diameter pipes or extensive networks require more materials and labour, increasing costs.
2. Access points: Restricted or challenging access may require specialised equipment, adding to the expense.
3. Site complexity: Pipes with multiple bends and junctions are more difficult to reline, affecting the price.
4. Underlying issues: Additional problems such as blockages, corrosion, or tree root intrusion may need addressing before relining can occur.
5. Materials and methods: The specific relining techniques and materials chosen will influence the final cost.

Pipe relining generally proves more economical than traditional replacement methods for several reasons. The minimal excavation required significantly reduces labour and material costs associated with digging and replacing pipes. Additionally, property owners avoid the substantial expenses of restoring gardens, driveways, and structures damaged during traditional pipe replacement.

In urban Australian settings, the cost advantages become even more pronounced when repairs would otherwise affect public roads or footpaths, which can trigger council permits and associated fees. For businesses, the reduced downtime also represents significant cost savings, as operations can continue with minimal interruption during the relining process.

Modern pipe relining systems can create pipes that are up to four times stronger than new PVC pipes. The epoxy resin or fibreglass materials used in relining are highly resistant to cracks, leaks, and corrosion, potentially extending the lifespan of the plumbing system significantly.

Perhaps the most appreciated benefit among Australian property owners is the minimal disruption to their property. Traditional pipe replacement often involves extensive excavation that can damage landscaping, driveways, and structures. Pipe relining, however, requires only small access points, preserving the integrity and appearance of properties while avoiding the mess associated with digging.

Compared to traditional pipe replacement, which can take days or even weeks, pipe relining is remarkably time-efficient. In most cases, a new pipe can be installed and functioning within a single day. This efficiency is particularly valuable for commercial properties and busy households that cannot afford extended periods of plumbing disruption.

Pipe relining is most effective for pipes with moderate damage, such as cracks, leaks, or minor corrosion. However, it may not be viable for severely damaged or collapsed pipes, which would still require traditional replacement methods. Similarly, pipes with significant damage and large internal gaps may not be suitable for relining, as the solution wouldn’t be able to form an adequate structure.

Pipe relining is a specialised service that requires specific equipment and extensive training. This means that not all plumbers offer this service, and finding qualified specialists with proven experience is essential for successful outcomes. Pleasingly, the team at North East Plumbing have years of extensive experience completing pipe relining services all across Sydney.

For Australian property owners considering pipe relining, compliance with relevant standards is an important consideration. Pipe relining is approved by Australian standards, specifically AS3600 (2016) and its subsequent revisions, which include requirements for using pipe relining as a remediation method in both stormwater and sewer systems. This regulatory approval provides confidence in the technique’s legitimacy and effectiveness within the Australian context.