A resin-saturated liner is fed into the damaged drain, pressed against the inside wall and cured hard in place. What you end up with is a continuous, jointless pipe inside the original, with no gaps for roots to get back into.
Three quick steps. Every enquiry answered within 12 hours. If it's urgent, call.
Could not send just now. Call Luke 0423 213 079 or Zach 0402 273 744, or email admin@bmadvanced.com.au
Pipe relining repairs a damaged drain from the inside instead of digging it up. A flexible liner soaked in resin is inserted into the existing pipe, inflated so it presses against the pipe wall, and cured until hard, forming a new jointless pipe inside the old one. Because there are no joints, the most common cause of blockages in Sydney drains, tree roots entering at a joint, has nowhere to get in. It suits drains running under driveways, paving, established gardens, mature trees, heritage properties and steep blocks, where excavation would be expensive or destructive.
Relining is not automatically the right answer, but in these situations it usually is.
There is one hard limit. Relining needs enough of the original pipe left to form against. If a section has fully collapsed, that part has to be dug up and replaced, though often we can excavate one small section and reline the rest.
Nothing gets quoted before we have seen the pipe. A camera inspection tells us the diameter, the length, where the junctions and bends are, and how much of the original pipe is intact.
The liner has to bond to the pipe wall, so roots, scale and fat all come out first with high pressure water. If there are roots inside, they are cut back flush.
The liner is cut to length and saturated with resin. This is done on site and there is a working window before it starts to cure, so it happens in the right order.
The liner goes in through the existing access point and is inflated so it presses firmly against the inside of the old pipe, taking its shape including the bends.
The resin sets to form a rigid pipe within the pipe. Once it has cured, the inflation is removed and what is left is a continuous jointless liner.
Any branch lines covered by the liner are reopened with a cutter so they drain properly. Then the camera goes back down so you can see the finished result rather than take our word for it.
Relining is priced per job, and honestly it cannot be quoted without a camera first. Anyone giving you a firm relining price over the phone is guessing. The variables:
The comparison that matters is not relining against nothing, it is relining against excavation. Once you add up breaking out a driveway, digging, replacing the pipe, backfilling and then rebuilding the driveway, relining is frequently the cheaper option as well as the less disruptive one. We will price both where both are genuinely possible, and tell you which we would choose.
The traditional fix for a broken drain is to find it, dig it up, replace the pipe and fill the hole back in. It works. It is also the reason so many Sydney homeowners have a rectangle of newer concrete across an otherwise matching driveway.
A flexible liner, saturated with resin, is drawn or pushed into the damaged pipe through an existing access point. It is then inflated so it presses hard against the inside of the old pipe, taking on its shape including bends and changes of direction. The resin cures until it is rigid. Once the inflation is removed you have a smooth, continuous, jointless pipe sitting inside the original one, using the old pipe as its host.
Because the liner is continuous, it has no joints. In Sydney drainage that is the whole game. The overwhelming majority of blockages we clear are roots entering at a joint or crack in old clay pipe. Remove the joints and you remove the entry point.
On the Upper North Shore it is the trees and the sandstone. The suburbs through Killara, Gordon, Pymble, Wahroonga and St Ives are known for their tree canopy, and mature trees sitting over century-old earthenware drains is the classic root intrusion setup. Add sandstone close to the surface, steep gullied blocks and streets with heritage conservation controls, and excavation goes from inconvenient to seriously expensive. Relining avoids most of that.
In The Hills it is more often the hard surfaces. Larger homes on larger blocks means long drainage runs, frequently under driveways, paved entertaining areas, pool surrounds and established landscaping that cost a great deal to put in and more to put back.
On the Northern Beaches it is access. Steep blocks around Avalon, Bilgola, Whale Beach and Seaforth, houses well above or below the street, narrow side passages and tight sites all make getting an excavator to the fault difficult or impossible. Relining works through the existing access point, so the machine does not need to be at the pipe.
We would rather turn down a job than sell you the wrong one. If a section has completely collapsed there is nothing to line against and it has to be dug. If the pipe was laid at the wrong fall so waste sits in it, lining preserves the bad fall and you keep the problem. If a drain is in the way of something you are about to build, replacing it in the right position is the sensible answer. In each of those cases we will say so, and we will show you the footage that led us there.
Call Luke on 0423 213 079 or Zach on 0402 273 744. Every enquiry through the form is answered within 12 hours.
We camera the line before we quote, because that is the only honest way to price relining. Call, or send the form and you will hear back within 12 hours.
Three quick steps. Every enquiry answered within 12 hours. If it's urgent, use the numbers.
Could not send just now. Call Luke 0423 213 079 or Zach 0402 273 744, or email admin@bmadvanced.com.au
