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Documentation Index

Fetch the complete documentation index at: https://help.ratemyflat.co.nz/llms.txt

Use this file to discover all available pages before exploring further.

When performing structural remediation to meet the Healthy Homes Standards (HHS), it is essential to engage professionals who understand the specific New Zealand legislative requirements. Using unqualified tradespeople can lead to non-compliance and potential safety risks.

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Trade categories for remediation

Different standards require different specialist skills. Ensure your contractors hold the relevant certifications.
Heat pump installation must be performed by a certified electrician or a qualified HVAC (Heating, Ventilation, and Air Conditioning) technician. Because these systems involve refrigerant gases, the installer should hold a “Fillers and Recoverers” certificate to comply with environmental regulations.
Look for IAONZ-Certified Installers. The Insulation Association of New Zealand (IAONZ) ensures practitioners are trained to the NZS 4246:2016 standard for residential insulation. You can verify a company via the IAONZ Member Directory.
Electricians are required for wiring extractor fans in kitchens and bathrooms. If windows or doors need to be modified to provide openable ventilation, engage a qualified builder or joiner to ensure the home remains weather-tight.
Installing ground moisture barriers or repairing complex drainage issues often requires a licensed drainlayer or a registered plumber. For significant structural mould, you should hire specialist mould remediation contractors who follow the MBIE guidelines for safe removal.

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Healthy Homes Assessments

A Healthy Homes Assessment is a professional inspection of a home to determine its compliance status across all five standards. The resulting report is often used by landlords to complete their mandatory “Compliance Statement.”
  • Who provides them: Look for assessors who are BPI-listed (Building Performance Institute) or have undergone BRANZ-based training.
  • What it covers: The report includes heating capacity calculations, insulation R-value checks, and assessments of ventilation and drainage.
  • Cost: A standard assessment for a typical residential home generally costs between NZD 200and200 and 500, depending on the size and location of the home.

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Subsidies and grant programmes

Several government initiatives exist to help lower the cost of making New Zealand homes warmer and drier.

Warmer Kiwi Homes (EECA)

Offers grants covering approximately 80% of the cost of ceiling and underfloor insulation and approved heaters for eligible homeowners. Phone: 0800 358 676 warmerkiwihomes.govt.nz

Healthy Homes Initiative

A nationwide programme across all Te Whatu Ora districts. It provides interventions like curtains and heaters for low-income families with health needs. Access: Referral via your GP or midwife.
Note on Auckland Council: The “Retrofit Your Home” programme is permanently closed as of 31 August 2023. Ratepayers in Auckland should instead look to EECA grants or private “green loans” offered by major banks.

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Contributing to ratemyflat

If you have recently had a Healthy Homes Assessment or remediation work completed, your experience is valuable to others. Sign up to contribute reviews and verify the homes you’ve lived in to help other New Zealanders find healthy places to live. Sources: