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 requires caution due to NZ's leaky homes crisis. While not all plaster homes leak, those built from 1987-2005 are higher risk, potentially trapping moisture and causing rot.

Look for warning signs like mould or swollen materials. Repairs can be extremely expensive, and securing insurance is often difficult.

Before purchasing, a specialised building inspection is essential to check moisture levels. Homes built post-2005 with a proper drainage cavity are 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