Buying guide

Should I buy a monolithic cladding house? Understanding NZ leaky homes

Properties with plaster or monolithic cladding can be risky purchases, but they're not all leaky.

Ben Tutty
Last updated: 24 February 2026 | 6 min read
AI

AI summary

Buying a monolithic cladding house carries risks due to NZ's leaky homes crisis, especially for homes built between 1987-2005. While not all plaster homes leak, they require extra caution.

Look for warning signs like:

- Mould or fungi

- Sagging ceilings

- Discoloured materials

Repair costs can exceed $330,000, so a specialised building inspection focusing on moisture is essential before you commit to buying a property with this type of cladding.

What exactly is a leaky home?

What caused the NZ leaky homes crisis?

Monolithic cladding — the main culprit?

Not all plaster homes leak, but they may be at a higher risk.

How can I spot a leaky home?

If you keep your eyes open during a property inspection you may be able to spot signs that a home is leaky.

Not all plaster homes are leaky but they should be approached with caution.

The cost of fixing a leaky home

Should I buy a monolithic cladding house?

FAQs — Navigating leaky homes in NZ

Author

Ben Tutty Ben Tutty
Content Writer