A cracked or root-damaged line repaired from the inside, so the retaining, the planting and the fall down your block all stay exactly where they are.
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The defect itself is usually small: an open joint, a crack, roots that have found a gap of a few millimetres.
What makes excavation expensive here is everything above the pipe. On a block that steps down toward the water, a drainage run is long and indirect, and it typically passes retaining walls, established planting and paving that exists precisely to hold the fall in place.
Digging through that and putting it back properly is most of the cost, and it is cost spent on reinstatement rather than on the repair.
Relining does the repair inside the pipe. One access point, no trench, and the ground that holds your block together is not disturbed to fix a crack in a joint.
We do not quote a reline off a description. The footage decides whether you need a liner, a section repair, or something else entirely.
On a block that falls away from the road, the drainage run is long and indirect, and it crosses terracing, steps, retaining and established garden on its way down.
Excavating that is disruptive out of proportion to the defect, which is frequently one joint somewhere along it.
So the honest comparison is liner against pipe plus everything above it, and here that second part is substantial.
Some drainage here runs across a downstream property under a registered easement, which changes what excavation involves considerably.
It means access, agreement and reinstatement on land that is not yours, and it is a negotiation rather than a scheduling question.
A liner installed from your own access point avoids all of that, which on an easement run is frequently the deciding factor.
A flexible liner carrying resin is drawn into the pipe, pressed outward against the inside wall, and left until the resin hardens into shape.
The finished item is a continuous jointless pipe sitting inside the old one, a little narrower and a good deal smoother than what it replaced.
No excavation is involved. The work is done from an opening that is already there, which is most of the point.
Bushland-edge blocks give roots plenty to work with, and they enter at an opening that has already moved rather than breaking into sound pipe.
Ground movement on a slope opens those joints more readily than flat ground does, so the two factors compound on exactly this kind of property.
A cured liner removes every joint along the section it covers, which addresses the mechanism rather than this season's growth.
A liner negotiates ordinary bends comfortably and will not negotiate everything, and on a long indirect run down a slope there are frequently more bends than expected.
That is answered from the camera survey, which is why the survey comes before the quote rather than after it.
Where a bend is genuinely too tight, that section can usually be handled separately rather than the whole approach being abandoned.
It restores the pipe. It does not change the gradient the pipe was laid at, because the liner takes the shape of the host it cures inside, settled sections included.
On a run that already relies on the slope to work, a settled section matters, and it is worth establishing before anybody commits to a method.
Grade gets checked from the footage, and where it is the problem we will say so rather than sell the easier job.
A liner needs a host holding roughly its original shape to be formed inside. A crushed length has nothing to form against and has to come out.
On stepped ground with retaining above and below the line, keeping that excavation to one small place is worth a great deal.
A short open repair plus a liner over the remainder is a common and sensible outcome rather than a compromise.
The liner passes over each branch connection on the way in and each is cut back open from inside once the resin has set. Routine, and confirmed on camera.
A missed one stops the branch it serves draining, which is immediately obvious rather than a hidden defect.
On a house extended down a slope over the years, the junctions are where later work met the original, so they get a close look on the before footage too.
You should be able to compare. We give the relining figure and the excavation figure for the same defect, with the length in metres and what each includes for putting things back.
On a terraced block, reinstating stonework, steps and established planting is frequently larger than the drainage work itself.
If a quote offers only one method, ask what the other would cost. The answer is usually informative.
Before and after, plus a written account of what was found and what was done. Yours whatever it shows.
On a long indirect run that nobody has ever mapped, the located route is worth as much as the repair, and it is worth filing with the property papers.
The next person to look at that line starts from an answer rather than from nothing.
Quoted at a fixed price against footage, never against a description. These are indicative 2026 ranges, and the excavation comparison comes with every relining quote.
Footage handed over, with what is actually wrong marked and located.
A defined defect repaired from inside, through existing access where possible.
Depending on length and access. On a long indirect run this is where relining earns its keep.
The line cleared and prepared so the liner cures against sound pipe.
The dig price for the same defect, so the choice is yours and not ours.
We film the run and locate the defect before anybody quotes anything. No footage, no quote.
The relining figure and the excavation figure for the same defect, so you can compare them properly.
Roots cut back and the run cleaned so the liner cures against sound pipe rather than over debris.
The finished liner recorded end to end and the footage handed over with the warranty.
Then clearing it again is not the answer. Twenty minutes with a camera will show you whether a liner fixes it for good.
Call 1300 381 569Because excavation costs more here than the defect deserves. A drainage run on a block that falls away from the road is usually long, indirect and set into ground that steps down, frequently past retaining, planting and paving that was built to hold the fall. Opening a trench through that is disruptive out of all proportion to a cracked joint, and reinstating it properly is most of the bill. A liner repairs the pipe and leaves the ground alone.
No, and anyone who says otherwise is selling. A liner restores the pipe. It cannot change the gradient the pipe was laid at. If the camera shows a section that has lost its fall and is holding water, that is a different repair, and we will tell you which one you have before quoting either.
Not directly, and it is worth separating the two. An easement question is about where water is legally allowed to go. Relining is about the condition of a pipe you already have. Where an existing drainage line crosses another property under an easement, relining is often the sensible way to repair it precisely because it does not involve digging up somebody else's land.
A correctly installed liner is a structural repair rather than a patch, and it is designed to be measured in decades rather than years. We will not put a specific number on a specific drain we have not filmed, because the answer depends on what is left of the host pipe.
Usually only a small access point, and frequently we can work through one that already exists. That is the entire point of the method: the repair happens inside the pipe, so the garden, the driveway and any retaining stay where they are.
Most can. A line that has collapsed completely, or one that has separated so far that there is no host pipe left to line, needs excavation. The camera decides it, which is why we film before quoting rather than after.
A camera inspection and report is $250 to $450. A junction or short section repair is $1,500 to $3,500. A full run from the house to the boundary is $4,000 to $9,000 depending on length and access. We give the excavation price alongside it so you can compare rather than take our word for which is better.
Tell us whether the run goes down a slope or crosses another property. On these blocks that usually decides whether relining is worth it.
Camera first, both prices in writing, and the footage is yours to keep either way.
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