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 its link to NZ's leaky homes crisis. These properties can trap moisture, causing rot and potential health issues.

Key risks include:

- High repair costs, often exceeding $330,000

- Difficulty securing finance and insurance

Before purchasing, look for warning signs like mould or sagging ceilings. Always get a specialised building inspection to assess watertightness, especially for homes built between 1987 and 2005, to understand the full investment required.

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