Buildline Renovations & Extensions 04 6 min read Guide
Renovation warranties and defect periods in NSW
What your warranty covers (6 years structural, 2 years other), the line between defects and wear, and how to guard yourself at handover.
Short answer: In NSW, you get 6 years on structural defects and 2 years on everything else. But statutory cover is the floor, not the ceiling. A good builder names what is covered, what is excluded, and how to claim.
Warranty periods in NSW
The Home Building Act sets two warranty periods for all home building work over $5,000. No contract can shorten them.
6 years
structural defects
Home Building Act 1989 (NSW), s 18E
2 years
non-structural defects
Home Building Act 1989 (NSW), s 18E
Legal minimums from the date the work is finished. No contract can cut them short.
What the warranty covers
The warranty covers work that is faulty, does not match the plans, breaks the Building Code, or is not fit for the stated purpose. It does not cover damage you cause, normal wear, or items you were told to maintain.
Covered (defect)
Not covered (maintenance)
Cracked tiles from poor prep under the surface.
Cracked tiles from impact or movement not tied to the work.
Leaking shower membrane within the warranty period.
Grout staining from normal shower use over time.
Doors that will not close because the frame is out of square.
Doors that stick in humid weather due to normal timber swelling.
Paint peeling within 12 months from poor surface prep.
Paint fading from sun over several years.
How to protect yourself
At handover
- Do a thorough walk-through with the builder. Take photos of every room.
- List any defects on the handover form. The builder should agree to fix them within a set time.
- Confirm you have the warranty schedule, compliance certs, and product manuals.
- File the HBCF cert. This is your cover if the builder cannot or will not come back.
During the warranty period
- Report defects promptly and in writing, with photos and the date you first noticed them.
- Follow the builder's defect process (most have a form or email).
- Keep records of all contact. Written records matter if a dispute reaches Fair Trading.
- Maintain the work as the product manuals direct. Not doing so can void cover on those items.
Red flag
A builder who says "call me if anything goes wrong" but has no written warranty schedule,
no defect process, and no named warranty periods. Verbal promises mean nothing once
the job is paid.
Good sign
A builder who hands over a written warranty schedule at practical completion, names what
is structural and what is non-structural, lists exclusions, and provides a clear process
for reporting defects.
Common questions
What warranty do I get on a renovation in NSW?
Structural defects are covered for 6 years and other defects for 2 years from completion. These are set by law. A good builder also gives you a written schedule that names what is covered, what is not, and how to claim.
What is the difference between a defect and wear and tear?
A defect is work that does not meet the contract spec at the time it was done. Wear is normal ageing from use. Cracked grout from bad prep is a defect. Grout staining from years of showers is wear.
What should I do if I find a defect after handover?
Take photos, note when you first saw it, and tell the builder in writing. Most builders have a form for this. If they do not respond in a fair time, NSW Fair Trading can help.