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

Monolithic cladding homes require caution due to their link to NZ's leaky homes crisis, especially properties built between 1987-2005. Poor building practices and untreated timber created a high risk of moisture damage.

Watch for warning signs like mould, sagging ceilings, or swollen materials. Repair costs are significant, often exceeding $330,000, and securing finance can be difficult.

While not all plaster homes leak, a specialised building inspection focused on moisture is essential before purchasing to understand the full risk.

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