This is one of the newest suburbs in Sydney. It was rezoned in 2013 under the North West Priority Growth Area, and it has gone from a rural locality of about nine hundred residents to well over six thousand as master-planned estates were built out.
That changes the most useful thing a plumber can tell you here, and it is not technical. In a house this new, a plumbing defect is frequently the builder's to rectify rather than the owner's to pay for, and most people pay for it themselves without ever asking the question.
Residential building work in NSW carries statutory warranties under the Home Building Act 1989. In broad terms that is six years for a major defect and two years for other defects, running from completion of the work. Plumbing that was installed badly, connected wrongly or left full of construction debris is building work like any other. So the first question is the age of the house, not the price of a repair.
- Establish the completion date of the house first
- Document the fault before anybody repairs it
- Photographs, a written description, and camera footage where relevant
- Then decide, knowing you had a choice
- NSW Fair Trading is the authority on your own situation, not us
On this page
1. The sequence here is different from everywhere else
On an older house, a fault is a fault. You get it diagnosed, you get it quoted, you get it fixed. That is the whole sequence and it is the right one.
In a house built in the last few years there is a step before that, and skipping it costs money that nobody ever notices they spent.
- Establish the age of the house. Under two years, and under six for anything serious, is a completely different conversation from "here is a quote".
- Document before repairing. A defect that has already been fixed is much harder to establish afterwards.
- Then decide. Some owners would rather pay and move on than deal with a builder, and that is entirely legitimate. It should just be a choice made knowingly.
Most defects are ordinary and most builders rectify them. The point is simply that the owner should know the option exists before the evidence is gone.
2. What the warranties are, in broad terms
Residential building work in NSW carries statutory warranties under the Home Building Act 1989. Broadly, that is six years for a major defect and two years for other defects, running from completion of the work.
Plumbing is building work like any other, so work that was installed badly, connected wrongly, or left full of construction debris falls within the same framework as anything else about the house.
We are plumbers rather than lawyers or building consultants, so that is as far as we are going to take it. Whether a particular fault qualifies, whether it is a major defect, and what any owner should actually do about it are questions for NSW Fair Trading and, where the amounts justify it, for proper advice.
What we will not do is give you a confident legal opinion, because it would be worth nothing if it turned out to be wrong and you would be the one carrying that.
3. Document it before anybody repairs it
This is the part that is genuinely ours, it costs nothing, and it is the step people skip because they reasonably want the problem gone.
- Photograph the symptom before anything is touched, with something in frame for scale.
- Photograph what is found once it is opened up. Ask the plumber at the start of the visit and most will simply do it.
- Get a written description of the cause, not just of the repair. "Repaired leak" describes the work and says nothing about why.
- Get camera footage where drainage is involved, and keep it.
- Keep the itemised invoice with the rest.
- Note the date, which photographs carry automatically.
A repair closes a wall or backfills a trench, and from that moment the only record of what was there is whatever somebody captured. That is not recoverable later at any price.
4. Construction debris, which nobody caused
The commonest new-build drainage problem, and one worth naming because households blame themselves for it.
Sand, mortar, render and offcuts get into drainage during construction. It is not anybody being careless, it is what a building site produces, and a certain amount ends up in the lines. It then sits there until enough has accumulated, and surfaces months later as a blockage that the people living there did nothing to cause.
The tell is timing and material. A blockage in the first year or two of a house, producing sand or hard material rather than anything domestic, is a construction story rather than a household one. A camera shows it plainly.
New house, first blockage?
Ask for it to be filmed. What comes out tells you where it came from.
5. Settlement, and why minimum fall matters
New fill and new slabs move in the first years. That is normal and it is expected, and most of the time nothing that matters is affected by it.
Drainage is the exception, because it works on fall and it is frequently laid close to the minimum. A line with generous fall tolerates a little movement without noticing. A line at minimum fall has very little tolerance, and a small amount of settlement can be enough to leave a section holding water rather than draining through it.
The symptom is a drain that is slow rather than blocked, and that gets gradually worse rather than failing suddenly. It is worth filming rather than clearing repeatedly, because clearing a line that has lost its fall does not restore the fall.
6. The whole street is on the same clock
One genuinely useful consequence of a master-planned estate: everything is under warranty at once, because the whole street was built at once.
So a neighbour who has already had something rectified is worth talking to. What was wrong, how it was handled, who they dealt with, and how long it took. That is information nobody can sell you and it is free.
It also means a pattern across several houses is meaningful in a way it would not be in a mixed-age street. Where the same thing turns up at three addresses built by the same builder in the same year, that is worth knowing about before you decide how to handle your own.
- This is one of Sydney's newest suburbs, rezoned in 2013 and built out rapidly since.
- Residential building work carries statutory warranties under the Home Building Act 1989.
- Broadly six years for a major defect and two for others, from completion of the work.
- Establish the age of the house before you accept a quote, not afterwards.
- Document before repairing. A repair closes the wall and takes the evidence with it.
- NSW Fair Trading is the authority on your own situation. We are plumbers.
Under warranty FAQs
Is my problem covered by a warranty?
That is not something we can tell you, and we would rather say so than guess. NSW Fair Trading is the authority on how the statutory warranties work, and where real money is involved it is worth proper advice. What we can give you is an accurate record of the physical facts.
Should I delay the repair while I find out?
No. Water damage compounds and living with a fault to protect an option is a bad trade. Document it properly, which takes five minutes, and then get it fixed.
What counts as a major defect?
That distinction has a legal meaning and it is not ours to apply. It is exactly the kind of question to put to Fair Trading rather than to a plumber, and it is worth asking before assuming either way.
My drain blocked and it is a new house. Did we cause it?
Frequently not. Construction debris is the commonest new-build drainage problem and it is not anybody living there being careless. A camera shows what came out, and sand or hard material in the first year or two is a construction story.
The drain is slow rather than blocked. Is that different?
It can be, and it is worth filming rather than clearing repeatedly. New fill and slabs move in the first years, and drainage laid at minimum fall has little tolerance for that. Clearing a line that has lost its fall does not restore the fall.
Should I talk to my neighbours about it?
Genuinely yes here. The whole street was built at once and is on the same clock, so a neighbour who has already had something rectified knows things nobody can sell you.