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 home with monolithic cladding carries risks due to NZ's leaky homes crisis, but it's not an automatic dealbreaker. Issues common in homes built from 1987-2005 were caused by poor design and construction methods.

Be aware of warning signs like mould or swollen skirting boards. Repair costs can be extremely high, often exceeding $330,000.

Before purchasing, a specialised building inspection focusing on moisture is essential. Homes built post-2005 with a proper drainage cavity are generally lower 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