Drain Relining or Drain Repatching

Pipe relining brings you a no-dig technology that will save your garden and paved yards from excavation.

Opt for this cost-effective solution

Leaks coming from a broken pipe in your underground sewage system is a challenge. There are several reasons why this happens. It can be caused by shifting of the soil, creating a crack in the pipe that eventually led to a blockage. Tree roots infiltrating the pipe is another common cause of blocked drains and burst pipes in New South Wales and Canberra.

If the damage is severe, there is a chance that you will have to employ an experienced plumber to excavate the site and fix the broken pipe. However, modern technology has given us an option through drain relining or drain patching for those pipes that only have local damage to its specific part.

What is drain relining?

Drain relining is a non-destructive way of fitting in a new pipe where the leak or damage of the old pipe is located. The new pipe patch made of a mixture of epoxy and resin material is cured in place using air pressure.

Benefits of Drain Relining

Non-evasive pipe replacement

No Dig White

When the blocked drain or broken pipe lies underneath your garage, concrete driveways, slabs or garden, traditional pipe replacement requires a large excavation site to dig out the defective pipe using an excavator. However, drain relining does not require a whole site excavation.

Low-cost Solution

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Digging a yard to fix a defective pipe usually entails bigger costs. Aside from the actual drain repair, you also have to allocate a sum of money for the repair and restoration of your garden and pipe. These additional costs do not apply to drain relining.


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A reinforced pipe through drain relining lasts up to an estimate of 20 years. Since the epoxy resin pipe is inserted into the old pipe, it is having two pipes in place.

Quick Turnaround

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Drain relining is simple and effective. The job is quicker than the traditional way of pipe replacement. The curing of the pipe lining only takes not less than an hour and the whole job can take an average of less than a day. 

The Relining Process

As a homeowner and property manager, it is important to understand and educate yourself on how the relining process works. Drain relining is a quick, no-hassle pipe replacement process that will not cause any disturbance to your neighbours. Digging is only confined to the access points and there is no need to excavate the whole area. Here is a simple guide for you.

Step 1 Inspection

Our experienced plumbers will insert small cameras down the drain to inspect the extent and severity of the damage. They will also assess if pipe relining or repatching is applicable to your case.

Step 2 Blocked Drain Clearing

Blocked sewers are usually an after effect of cracked or broken pipes. Blocked drains should be cleared first. After clearing the drain, the site will be inspected again to know how much material is needed for the pipe repatching.

Step 3 Mixture preparation

The liner will be mixed and flattened out on site. With the aid of a CCTV camera, the liner will be carefully laid down to the target pipe or damaged area that requires lining.

Step 4 Curing the Lining

Once the liner is in place. The plumber then inflates the packer and applies air pressure into the area. The curing process will harden the liner in place. Once hardened the packer is deflated and the pipe is now relined.

Need an expert for sewer line relining?

The Plumbing and Electrical Doctor is proud to adopt trenchless pipe relining technology. Many of our customers are happy with the cost-effective and fast way to repair broken pipes in your sewage. 

Book an appointment with our friendly and experienced drain relining experts so we can conduct an on-site inspection today.


Have a drain that needs to be replaced? Call now to get it replaced fast!